test/model_test.dart

// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

library dartdoc.model_test;

import 'dart:io';

import 'package:dartdoc/dartdoc.dart';
import 'package:dartdoc/src/model.dart';
import 'package:dartdoc/src/model_utils.dart';
import 'package:dartdoc/src/package_meta.dart';
import 'package:dartdoc/src/sdk.dart';
import 'package:path/path.dart' as p;
import 'package:test/test.dart';

import 'src/utils.dart' as utils;

void main() {
  utils.init();

  final Package package = utils.testPackage;
  final Package ginormousPackage = utils.testPackageGinormous;
  final Library exLibrary =
      package.libraries.firstWhere((lib) => lib.name == 'ex');
  final Library fakeLibrary =
      package.libraries.firstWhere((lib) => lib.name == 'fake');
  final Library twoExportsLib =
      package.libraries.firstWhere((lib) => lib.name == 'two_exports');

  Directory sdkDir = getSdkDir();

  if (sdkDir == null) {
    print("Warning: unable to locate the Dart SDK.");
    exit(1);
  }

  Package sdkAsPackage = Package.withAutoIncludedDependencies(
      getSdkLibrariesToDocument(utils.sdkDir, utils.analyzerHelper.context),
      new PackageMeta.fromSdk(sdkDir));

  group('Package', () {
    group('test package', () {
      setUp(() {
        setConfig();
      });

      test('name', () {
        expect(package.name, 'test_package');
      });

      test('libraries', () {
        expect(package.libraries, hasLength(6));
      });

      test('categories', () {
        expect(package.categories, hasLength(1));

        PackageCategory category = package.categories.first;
        expect(category.name, 'test_package');
        expect(category.libraries, hasLength(6));
      });

      test('multiple categories, sorted default', () {
        expect(ginormousPackage.categories, hasLength(2));
        expect(ginormousPackage.categories.first.name, equals('test_package'));
      });

      test('multiple categories, specified sort order', () {
        setConfig(categoryOrder: ['Dart Core', 'test_package']);
        expect(ginormousPackage.categories, hasLength(2));
        expect(ginormousPackage.categories.first.name, equals('Dart Core'));
      });

      test('is documented in library', () {
        expect(package.isDocumented(exLibrary.element), isTrue);
      });

      test('has documentation', () {
        expect(package.hasDocumentationFile, isTrue);
        expect(package.hasDocumentation, isTrue);
      });

      test('documentation exists', () {
        expect(package.documentation.startsWith('# Best Package'), isTrue);
      });

      test('documentation can be rendered as HTML', () {
        expect(package.documentationAsHtml, contains('<h1>Best Package</h1>'));
      });

      test('sdk name', () {
        expect(sdkAsPackage.name, equals('Dart SDK'));
      });

      test('sdk version', () {
        expect(sdkAsPackage.version, isNotNull);
      });

      test('sdk description', () {
        expect(sdkAsPackage.documentation,
            startsWith('Welcome to the Dart API reference doc'));
      });

      test('has anonymous libraries', () {
        expect(
            package.libraries.where((lib) => lib.name == 'anonymous_library'),
            hasLength(1));
        expect(
            package.libraries
                .where((lib) => lib.name == 'another_anonymous_lib'),
            hasLength(1));
      });
    });

    group('test small package', () {
      test('does not have documentation', () {
        expect(utils.testPackageSmall.hasDocumentation, isFalse);
        expect(utils.testPackageSmall.hasDocumentationFile, isFalse);
        expect(utils.testPackageSmall.documentationFile, isNull);
        expect(utils.testPackageSmall.documentation, isNull);
      });
    });
  });

  group('Library', () {
    Library dartAsyncLib, anonLib, isDeprecated;

    setUp(() {
      dartAsyncLib = new Library(
          getSdkLibrariesToDocument(utils.sdkDir, utils.analyzerHelper.context)
              .first,
          sdkAsPackage);

      anonLib = package.libraries
          .firstWhere((lib) => lib.name == 'anonymous_library');

      isDeprecated =
          package.libraries.firstWhere((lib) => lib.name == 'is_deprecated');

      // Make sure the first library is dart:async
      expect(dartAsyncLib.name, 'dart:async');
    });

    test('has a name', () {
      expect(exLibrary.name, 'ex');
    });

    test('packageName', () {
      expect(exLibrary.packageName, 'test_package');
    });

    test('has a fully qualified name', () {
      expect(exLibrary.fullyQualifiedName, 'ex');
    });

    test('can be deprecated', () {
      expect(isDeprecated.isDeprecated, isTrue);
      expect(anonLib.isDeprecated, isFalse);
    });

    test('that is deprecated has a deprecated css class in linkedName', () {
      expect(isDeprecated.linkedName, contains('class="deprecated"'));
    });

    test('sdk library have formatted names', () {
      expect(dartAsyncLib.name, 'dart:async');
      expect(dartAsyncLib.dirName, 'dart-async');
      expect(dartAsyncLib.href, 'dart-async/dart-async-library.html');
    });

    test('has documentation', () {
      expect(exLibrary.documentation,
          'a library. testing string escaping: `var s = \'a string\'` <cool>');
    });

    test('has one line docs', () {
      expect(
          fakeLibrary.oneLineDoc,
          equals(
              '<p>WOW FAKE PACKAGE IS <strong>BEST</strong> <a href="http://example.org">PACKAGE</a></p>'));
    });

    test('has properties', () {
      expect(exLibrary.hasProperties, isTrue);
    });

    test('has constants', () {
      expect(exLibrary.hasConstants, isTrue);
    });

    test('has exceptions', () {
      expect(exLibrary.hasExceptions, isTrue);
    });

    test('has enums', () {
      expect(exLibrary.hasEnums, isTrue);
    });

    test('has functions', () {
      expect(exLibrary.hasFunctions, isTrue);
    });

    test('has typedefs', () {
      expect(exLibrary.hasTypedefs, isTrue);
    });

    test('exported class', () {
      expect(exLibrary.classes.any((c) => c.name == 'Helper'), isTrue);
    });

    test('exported function', () {
      expect(
          exLibrary.functions.any((f) => f.name == 'helperFunction'), isFalse);
    });

    test('anonymous lib', () {
      expect(anonLib.isAnonymous, isTrue);
    });
  });

  group('Macros', () {
    Class dog;
    Method withMacro, withMacro2;

    setUp(() {
      dog = exLibrary.classes.firstWhere((c) => c.name == 'Dog');
      withMacro =
          dog.allInstanceMethods.firstWhere((m) => m.name == 'withMacro');
      withMacro2 =
          dog.allInstanceMethods.firstWhere((m) => m.name == 'withMacro2');
      package.allModelElements.forEach((m) => m.documentation);
    });

    test("renders a macro within the same comment where it's defined", () {
      expect(withMacro.documentation,
          equals("Macro method\n\n\nFoo macro content\nMore docs"));
    });

    test("renders a macro in another method, not the same where it's defined",
        () {
      expect(withMacro2.documentation, equals("Foo macro content"));
    });
  });

  group('Docs as HTML', () {
    Class Apple, B, superAwesomeClass, foo2;
    TopLevelVariable incorrectDocReferenceFromEx;
    ModelFunction thisIsAsync;
    ModelFunction topLevelFunction;

    Class extendedClass;
    TopLevelVariable testingCodeSyntaxInOneLiners;

    Class specialList;
    Class baseForDocComments;
    Method doAwesomeStuff;
    Class subForDocComments;

    ModelFunction short;

    setUp(() {
      incorrectDocReferenceFromEx = exLibrary.constants
          .firstWhere((c) => c.name == 'incorrectDocReferenceFromEx');
      B = exLibrary.classes.firstWhere((c) => c.name == 'B');
      Apple = exLibrary.classes.firstWhere((c) => c.name == 'Apple');
      specialList =
          fakeLibrary.classes.firstWhere((c) => c.name == 'SpecialList');

      topLevelFunction =
          fakeLibrary.functions.firstWhere((f) => f.name == 'topLevelFunction');
      thisIsAsync =
          fakeLibrary.functions.firstWhere((f) => f.name == 'thisIsAsync');
      testingCodeSyntaxInOneLiners = fakeLibrary.constants
          .firstWhere((c) => c.name == 'testingCodeSyntaxInOneLiners');
      superAwesomeClass = fakeLibrary.classes
          .firstWhere((cls) => cls.name == 'SuperAwesomeClass');
      foo2 = fakeLibrary.classes.firstWhere((cls) => cls.name == 'Foo2');
      assert(twoExportsLib != null);
      extendedClass = twoExportsLib.allClasses
          .firstWhere((clazz) => clazz.name == 'ExtendingClass');

      subForDocComments =
          fakeLibrary.classes.firstWhere((c) => c.name == 'SubForDocComments');

      baseForDocComments =
          fakeLibrary.classes.firstWhere((c) => c.name == 'BaseForDocComments');
      doAwesomeStuff = baseForDocComments.instanceMethods
          .firstWhere((m) => m.name == 'doAwesomeStuff');

      short = fakeLibrary.functions.firstWhere((f) => f.name == 'short');
    });

    group('doc references', () {
      String docsAsHtml;

      setUp(() {
        docsAsHtml = doAwesomeStuff.documentationAsHtml;
      });

      test('codeifies a class from the SDK', () {
        expect(docsAsHtml, contains('<code>String</code>'));
      });

      test('codeifies a reference to its parameter', () {
        expect(docsAsHtml, contains('<code>value</code>'));
      });

      test('links to a reference to its class', () {
        expect(
            docsAsHtml,
            contains(
                '<a href="fake/BaseForDocComments-class.html">BaseForDocComments</a>'));
      });

      test(
          'link to a name in another library in this package, but is not imported into this library, is codeified',
          () {
        expect(docsAsHtml, contains('<code>doesStuff</code>'));
      });

      test(
          'link to unresolved name in the library in this package still should be linked',
          () {
        final Class helperClass =
            exLibrary.classes.firstWhere((c) => c.name == 'Helper');
        expect(helperClass.documentationAsHtml,
            contains('<a href="ex/Apple-class.html">Apple</a>'));
        expect(helperClass.documentationAsHtml,
            contains('<a href="ex/B-class.html">B</a>'));
      });

      test(
          'link to a name of a class from an imported library that exports the name',
          () {
        expect(
            docsAsHtml,
            contains(
                '<a href="two_exports/BaseClass-class.html">BaseClass</a>'));
      });

      test(
          'links to a reference to a top-level const with multiple underscores',
          () {
        expect(
            docsAsHtml,
            contains(
                '<a href="fake/NAME_WITH_TWO_UNDERSCORES-constant.html">NAME_WITH_TWO_UNDERSCORES</a>'));
      });

      test('links to a method in this class', () {
        expect(
            docsAsHtml,
            contains(
                '<a href="fake/BaseForDocComments/anotherMethod.html">anotherMethod</a>'));
      });

      test('links to a top-level function in this library', () {
        expect(
            docsAsHtml,
            contains(
                '<a class="deprecated" href="fake/topLevelFunction.html">topLevelFunction</a>'));
      });

      test('links to top-level function from an imported library', () {
        expect(
            docsAsHtml, contains('<a href="ex/function1.html">function1</a>'));
      });

      test('links to a class from an imported lib', () {
        expect(docsAsHtml, contains('<a href="ex/Apple-class.html">Apple</a>'));
      });

      test(
          'links to a top-level const from same lib (which also has the same name as a const from an imported lib)',
          () {
        expect(
            docsAsHtml,
            contains(
                '<a href="fake/incorrectDocReference-constant.html">incorrectDocReference</a>'));
      });

      test('links to a top-level const from an imported lib', () {
        expect(
            docsAsHtml,
            contains(
                '<a href="ex/incorrectDocReferenceFromEx-constant.html">incorrectDocReferenceFromEx</a>'));
      });

      test('links to a top-level variable with a prefix from an imported lib',
          () {
        expect(docsAsHtml,
            contains('<a href="">css.theOnlyThingInTheLibrary</a>'));
      },
          skip:
              'Wait for https://github.com/dart-lang/dartdoc/issues/767 to be fixed');

      // remove this test when the above test is fixed. just here to
      // track when the behavior changes
      test('codeifies a prefixed top-level variable an imported lib', () {
        expect(
            docsAsHtml, contains('<code>css.theOnlyThingInTheLibrary</code>'));
      });

      test('links to a name with a single underscore', () {
        expect(
            docsAsHtml,
            contains(
                '<a href="fake/NAME_SINGLEUNDERSCORE-constant.html">NAME_SINGLEUNDERSCORE</a>'));
      });
    });

    test('multi-underscore names in brackets do not become italicized', () {
      expect(short.documentation, contains('[NAME_WITH_TWO_UNDERSCORES]'));
      expect(
          short.documentationAsHtml,
          contains(
              '<a href="fake/NAME_WITH_TWO_UNDERSCORES-constant.html">NAME_WITH_TWO_UNDERSCORES</a>'));
    });

    test('still has brackets inside code blocks', () {
      expect(topLevelFunction.documentationAsHtml,
          contains("['hello from dart']"));
    });

    test('oneLine doc references in inherited methods should not have brackets',
        () {
      Method add =
          specialList.allInstanceMethods.firstWhere((m) => m.name == 'add');
      expect(
          add.oneLineDoc,
          equals(
              '<p>Adds <code>value</code> to the end of this list,\nextending the length by one.</p>'));
    });

    test(
        'full documentation references from inherited methods should not have brackets',
        () {
      Method add =
          specialList.allInstanceMethods.firstWhere((m) => m.name == 'add');
      expect(
          add.documentationAsHtml,
          startsWith(
              '<p>Adds <code>value</code> to the end of this list,\nextending the length by one.'));
    });

    test('incorrect doc references are still wrapped in code blocks', () {
      expect(incorrectDocReferenceFromEx.documentationAsHtml,
          '<p>This should <code>not work</code>.</p>');
    });

    test('no references', () {
      expect(
          Apple.documentationAsHtml,
          '<p>Sample class <code>String</code></p><pre class="prettyprint language-dart">  A\n'
          '   B\n'
          '</pre>');
    });

    test('single ref to class', () {
      expect(
          B.documentationAsHtml.contains(
              '<p>Extends class <a href="ex/Apple-class.html">Apple</a>, use <a href="ex/Apple/Apple.html">new Apple</a> or <a href="ex/Apple/Apple.fromString.html">new Apple.fromString</a></p>'),
          isTrue);
    });

    test('doc ref to class in SDK does not render as link', () {
      expect(
          thisIsAsync.documentationAsHtml,
          equals(
              '<p>An async function. It should look like I return a <code>Future</code>.</p>'));
    });

    test('references are correct in exported libraries', () {
      expect(twoExportsLib, isNotNull);
      expect(extendedClass, isNotNull);
      String resolved = extendedClass.documentationAsHtml;
      expect(resolved, isNotNull);
      expect(resolved,
          contains('<a href="two_exports/BaseClass-class.html">BaseClass</a>'));
      expect(resolved, contains('linking over to <code>Apple</code>.'));
    });

    test('references to class and constructors', () {
      String comment = B.documentationAsHtml;
      expect(comment,
          contains('Extends class <a href="ex/Apple-class.html">Apple</a>'));
      expect(
          comment, contains('use <a href="ex/Apple/Apple.html">new Apple</a>'));
      expect(
          comment,
          contains(
              '<a href="ex/Apple/Apple.fromString.html">new Apple.fromString</a>'));
    });

    test('reference to class from another library', () {
      String comment = superAwesomeClass.documentationAsHtml;
      expect(comment, contains('<a href="ex/Apple-class.html">Apple</a>'));
    });

    test('reference to method', () {
      String comment = foo2.documentationAsHtml;
      expect(
          comment,
          equals(
              '<p>link to method from class <a href="ex/Apple/m.html">Apple.m</a></p>'));
    });

    test('legacy code blocks render correctly', () {
      expect(
          testingCodeSyntaxInOneLiners.oneLineDoc,
          equals(
              '<p>These are code syntaxes: <code>true</code> and <code>false</code></p>'));
    });

    test('doc comments to parameters are marked as code', () {
      Method localMethod = subForDocComments.instanceMethods
          .firstWhere((m) => m.name == 'localMethod');
      expect(localMethod.documentationAsHtml, contains('<code>foo</code>'));
      expect(localMethod.documentationAsHtml, contains('<code>bar</code>'));
    });

    test(
        'a property with no explicit getters and setters does not duplicate docs',
        () {
      Field powers = superAwesomeClass.instanceProperties
          .firstWhere((p) => p.name == 'powers');
      Iterable<Match> matches = new RegExp('In the super class')
          .allMatches(powers.documentationAsHtml);
      expect(matches, hasLength(1));
    });
  });

  group('Class', () {
    List<Class> classes;
    Class Apple, B, Cat, Cool, Dog, F, Dep, SpecialList;
    Class ExtendingClass, CatString;

    setUp(() {
      classes = exLibrary.classes;
      Apple = classes.firstWhere((c) => c.name == 'Apple');
      B = classes.firstWhere((c) => c.name == 'B');
      Cat = classes.firstWhere((c) => c.name == 'Cat');
      Dog = classes.firstWhere((c) => c.name == 'Dog');
      F = classes.firstWhere((c) => c.name == 'F');
      Dep = classes.firstWhere((c) => c.name == 'Deprecated');
      Cool = classes.firstWhere((c) => c.name == 'Cool');
      SpecialList =
          fakeLibrary.classes.firstWhere((c) => c.name == 'SpecialList');
      ExtendingClass =
          twoExportsLib.classes.firstWhere((c) => c.name == 'ExtendingClass');
      CatString = exLibrary.classes.firstWhere((c) => c.name == 'CatString');
    });

    test('has a fully qualified name', () {
      expect(Apple.fullyQualifiedName, 'ex.Apple');
    });

    test('we got the classes we expect', () {
      expect(Apple.name, equals('Apple'));
      expect(B.name, equals('B'));
      expect(Cat.name, equals('Cat'));
      expect(Dog.name, equals('Dog'));
    });

    test('a class with only inherited properties has some properties', () {
      expect(CatString.hasInstanceProperties, isFalse);
      expect(CatString.instanceProperties, isEmpty);
      expect(CatString.hasProperties, isTrue);
      expect(CatString.allInstanceProperties, isNotEmpty);
    });

    test('has enclosing element', () {
      expect(Apple.enclosingElement.name, equals(exLibrary.name));
    });

    test('class name with generics', () {
      expect(F.nameWithGenerics, equals('F&lt;T extends String&gt;'));
    });

    test('correctly finds all the classes', () {
      expect(classes, hasLength(21));
    });

    test('abstract', () {
      expect(Cat.isAbstract, isTrue);
    });

    test('supertype', () {
      expect(B.hasSupertype, isTrue);
    });

    test('mixins', () {
      expect(Apple.mixinsRaw, hasLength(0));
    });

    test('mixins private', () {
      expect(F.mixinsRaw, hasLength(1));
    });

    test('interfaces', () {
      var interfaces = Dog.interfaces;
      expect(interfaces, hasLength(2));
      expect(interfaces[0].name, 'Cat');
      expect(interfaces[1].name, 'E');
    });

    test('class title has abstract keyword', () {
      expect(Cat.fullkind, 'abstract class');
    });

    test('class title has  no abstract keyword', () {
      expect(Dog.fullkind, 'class');
    });

    test('get constructors', () {
      expect(Apple.constructors, hasLength(2));
    });

    test('get static fields', () {
      expect(Apple.staticProperties, hasLength(1));
    });

    test('constructors have source', () {
      Constructor ctor = Dog.constructors.first;
      expect(ctor.sourceCode, isNotEmpty);
    });

    test('get constants', () {
      expect(Apple.constants, hasLength(1));
    });

    test('get instance fields', () {
      expect(Apple.instanceProperties, hasLength(3));
    });

    test('get inherited properties, including properties of Object', () {
      expect(B.inheritedProperties, hasLength(4));
    });

    test('get methods', () {
      expect(Dog.instanceMethods, hasLength(9));
    });

    test('get operators', () {
      expect(Dog.operators, hasLength(1));
      expect(Dog.operators[0].name, 'operator ==');
    });

    test('inherited methods, including from Object ', () {
      expect(B.inheritedMethods, hasLength(7));
      expect(B.hasInheritedMethods, isTrue);
    });

    test('all instance methods', () {
      expect(B.allInstanceMethods, isNotEmpty);
      expect(B.allInstanceMethods.length,
          equals(B.instanceMethods.length + B.inheritedMethods.length));
    });

    test('inherited methods exist', () {
      expect(B.inheritedMethods.firstWhere((x) => x.name == 'printMsg'),
          isNotNull);
      expect(B.inheritedMethods.firstWhere((x) => x.name == 'isGreaterThan'),
          isNotNull);
    });

    test('exported class should have hrefs from the current library', () {
      expect(Dep.href, equals('ex/Deprecated-class.html'));
      expect(
          Dep.instanceMethods[0].href, equals('ex/Deprecated/toString.html'));
      expect(
          Dep.instanceProperties[0].href, equals('ex/Deprecated/expires.html'));
    });

    test('exported class should have linkedReturnType for the current library',
        () {
      Method returnCool = Cool.instanceMethods
          .firstWhere((m) => m.name == 'returnCool', orElse: () => null);
      expect(returnCool, isNotNull);
      expect(returnCool.linkedReturnType,
          equals('<a href="fake/Cool-class.html">Cool</a>'));
    });

    test('F has a single instance method', () {
      expect(F.instanceMethods, hasLength(1));
      expect(F.instanceMethods.first.name, equals('methodWithGenericParam'));
    });

    test('F has many inherited methods', () {
      expect(F.inheritedMethods, hasLength(12));
      expect(
          F.inheritedMethods.map((im) => im.name),
          equals([
            'abstractMethod',
            'foo',
            'getAnotherClassD',
            'getClassA',
            'noSuchMethod',
            'test',
            'testGeneric',
            'testGenericMethod',
            'testMethod',
            'toString',
            'withMacro',
            'withMacro2'
          ]));
    });

    test('F has zero instance properties', () {
      expect(F.instanceProperties, hasLength(0));
    });

    test('F has a few inherited properties', () {
      expect(F.inheritedProperties, hasLength(10));
      expect(
          F.inheritedProperties.map((ip) => ip.name),
          equals([
            'aFinalField',
            'aGetterReturningRandomThings',
            'aProtectedFinalField',
            'deprecatedField',
            'deprecatedGetter',
            'deprecatedSetter',
            'hashCode',
            'isImplemented',
            'name',
            'runtimeType'
          ]));
    });

    test('SpecialList has zero instance methods', () {
      expect(SpecialList.instanceMethods, hasLength(0));
    });

    test('SpecialList has many inherited methods', () {
      expect(SpecialList.inheritedMethods, hasLength(44));
      expect(SpecialList.inheritedMethods.first.name, equals('add'));
      expect(SpecialList.inheritedMethods[1].name, equals('addAll'));
    });

    test('ExtendingClass is in the right library', () {
      expect(ExtendingClass.library.name, equals('two_exports'));
    });

    // because both the sub and super classes, though from different libraries,
    // are exported out through one library
    test('ExtendingClass has a super class that is also in the same library',
        () {
      expect(ExtendingClass.superChain.first.name, equals('BaseClass'));
      expect(ExtendingClass.superChain.first.element.canonicalLibrary.name,
          equals('two_exports'));
    });

    test(
        "ExtendingClass's super class has a library that is not in two_exports",
        () {
      expect(ExtendingClass.superChainRaw.last.name,
          equals('WithGetterAndSetter'));
      expect(ExtendingClass.superChainRaw.last.element.library.name,
          equals('fake'));
    });
  });

  group('Enum', () {
    Enum animal;

    setUp(() {
      animal = exLibrary.enums.firstWhere((e) => e.name == 'Animal');
    });

    test('has a fully qualified name', () {
      expect(animal.fullyQualifiedName, 'ex.Animal');
    });

    test('has enclosing element', () {
      expect(animal.enclosingElement.name, equals(exLibrary.name));
    });

    test('has correct number of constants', () {
      expect(animal.constants, hasLength(4));
    });

    test("has a (synthetic) values constant", () {
      var values = animal.constants.firstWhere((f) => f.name == 'values');
      expect(values, isNotNull);
      expect(values.constantValue, equals('const List&lt;Animal&gt;'));
      expect(values.documentation, startsWith('A constant List'));
    });

    test('has a constant that does not link anywhere', () {
      var dog = animal.constants.firstWhere((f) => f.name == 'DOG');
      expect(dog.linkedName, equals('DOG'));
      expect(dog.isConst, isTrue);
      expect(dog.constantValue, equals('const Animal(1)'));
    });

    test('constants have correct indicies', () {
      String valueByName(var name) {
        return animal.constants.firstWhere((f) => f.name == name).constantValue;
      }

      expect(valueByName('CAT'), equals('const Animal(0)'));
      expect(valueByName('DOG'), equals('const Animal(1)'));
      expect(valueByName('HORSE'), equals('const Animal(2)'));
    });

    test('has a single `index` property', () {
      expect(animal.instanceProperties, hasLength(1));
      expect(animal.instanceProperties.first, isNotNull);
      expect(animal.instanceProperties.first.name, equals('index'));
    });

    test('has a single `index` property that is not linked', () {
      expect(animal.instanceProperties.first.linkedName, equals('index'));
    });
  });

  group('Function', () {
    ModelFunction f1;
    ModelFunction genericFunction;
    ModelFunction thisIsAsync;
    ModelFunction topLevelFunction;

    setUp(() {
      f1 = exLibrary.functions.first;
      genericFunction =
          exLibrary.functions.firstWhere((f) => f.name == 'genericFunction');
      thisIsAsync =
          fakeLibrary.functions.firstWhere((f) => f.name == 'thisIsAsync');
      topLevelFunction =
          fakeLibrary.functions.firstWhere((f) => f.name == 'topLevelFunction');
    });

    test('has a fully qualified name', () {
      expect(thisIsAsync.fullyQualifiedName, 'fake.thisIsAsync');
    });

    test('has enclosing element', () {
      expect(f1.enclosingElement.name, equals(exLibrary.name));
    });

    test('name is function1', () {
      expect(f1.name, 'function1');
    });

    test('local element', () {
      expect(f1.isLocalElement, true);
    });

    test('is executable', () {
      expect(f1.isExecutable, true);
    });

    test('is static', () {
      expect(f1.isStatic, true);
    });

    test('handles dynamic parameters correctly', () {
      expect(f1.linkedParams(), contains('lastParam'));
    });

    test('async function', () {
      expect(thisIsAsync.isAsynchronous, isTrue);
      expect(thisIsAsync.linkedReturnType, equals('Future'));
      expect(
          thisIsAsync.documentation,
          equals(
              'An async function. It should look like I return a [Future].'));
      expect(
          thisIsAsync.documentationAsHtml,
          equals(
              '<p>An async function. It should look like I return a <code>Future</code>.</p>'));
    });

    test('docs do not lose brackets in code blocks', () {
      expect(topLevelFunction.documentation, contains("['hello from dart']"));
    });

    test('has source code', () {
      setConfig(addCrossdart: false);
      expect(topLevelFunction.sourceCode, startsWith('@deprecated'));
      expect(topLevelFunction.sourceCode, endsWith('''
String topLevelFunction(int param1, bool param2, Cool coolBeans,
    [double optionalPositional = 0.0]) {
  return null;
}'''));
    });

    test('typedef params have proper signature', () {
      // typedef void VoidCallback();
      // void addCallback(VoidCallback callback) { }
      ModelFunction function =
          fakeLibrary.functions.firstWhere((f) => f.name == 'addCallback');
      String params = function.linkedParams();
      expect(
          params,
          '<span class="parameter" id="addCallback-param-callback">'
          '<span class="type-annotation"><a href="fake/VoidCallback.html">VoidCallback</a></span> '
          '<span class="parameter-name">callback</span></span>');

      // typedef int Callback2(String);
      // void addCallback2(Callback2 callback) { }
      function =
          fakeLibrary.functions.firstWhere((f) => f.name == 'addCallback2');
      params = function.linkedParams();
      expect(
          params,
          '<span class="parameter" id="addCallback2-param-callback">'
          '<span class="type-annotation"><a href="fake/Callback2.html">Callback2</a></span> '
          '<span class="parameter-name">callback</span></span>');
    });

    test('supports generic methods', () {
      expect(genericFunction.nameWithGenerics, 'genericFunction&lt;T&gt;');
    });
  });

  group('Method', () {
    Class classB, klass, HasGenerics, Cat, CatString;
    Method m1, isGreaterThan, m4, m5, m6, m7, convertToMap, abstractMethod;
    Method inheritedClear, testGeneric, testGenericMethod;

    setUp(() {
      klass = exLibrary.classes.singleWhere((c) => c.name == 'Klass');
      classB = exLibrary.classes.singleWhere((c) => c.name == 'B');
      HasGenerics =
          fakeLibrary.classes.singleWhere((c) => c.name == 'HasGenerics');
      CatString = exLibrary.classes.singleWhere((c) => c.name == 'CatString');
      Cat = exLibrary.classes.singleWhere((c) => c.name == 'Cat');
      inheritedClear =
          CatString.inheritedMethods.singleWhere((m) => m.name == 'clear');
      m1 = classB.instanceMethods.singleWhere((m) => m.name == 'm1');
      isGreaterThan = exLibrary.classes
          .singleWhere((c) => c.name == 'Apple')
          .instanceMethods
          .singleWhere((m) => m.name == 'isGreaterThan');
      m4 = classB.instanceMethods.singleWhere((m) => m.name == 'writeMsg');
      m5 = klass.instanceMethods.singleWhere((m) => m.name == 'another');
      m6 = klass.instanceMethods.singleWhere((m) => m.name == 'toString');
      m7 = classB.instanceMethods.singleWhere((m) => m.name == 'doNothing');
      abstractMethod =
          Cat.instanceMethods.singleWhere((m) => m.name == 'abstractMethod');
      testGeneric = exLibrary.classes
          .singleWhere((c) => c.name == 'Dog')
          .instanceMethods
          .singleWhere((m) => m.name == 'testGeneric');
      testGenericMethod = exLibrary.classes
          .singleWhere((c) => c.name == 'Dog')
          .instanceMethods
          .singleWhere((m) => m.name == 'testGenericMethod');
      convertToMap = HasGenerics.instanceMethods
          .singleWhere((m) => m.name == 'convertToMap');
    });

    tearDown(() {
      var file = new File(p.join(Directory.current.path, "crossdart.json"));
      if (file.existsSync()) {
        file.deleteSync();
      }
    });

    test('has a fully qualified name', () {
      expect(m1.fullyQualifiedName, 'ex.B.m1');
    });

    test('has abstract kind', () {
      expect(abstractMethod.fullkind, 'abstract method');
    });

    test("returns correct overriddenDepth", () {
      final bAbstractMethod = classB.allInstanceMethods
          .firstWhere((m) => m.name == "abstractMethod");
      expect(abstractMethod.overriddenDepth, equals(0));
      expect(bAbstractMethod.overriddenDepth, equals(1));
    });

    test(
        'an inherited method has class as the enclosing class, when superclass not in package',
        () {
      expect(inheritedClear.enclosingElement.name, equals('CatString'));
    });

    test(
        'inherited method has the current library, when superclass library not in package',
        () {
      expect(inheritedClear.library.name, equals('ex'));
    });

    test(
        'an inherited method from the core SDK has a href relative to the package class',
        () {
      expect(inheritedClear.href, equals('ex/CatString/clear.html'));
    });

    test(
        'an inherited method has linked to enclosed class name when superclass not in package',
        () {
      expect(inheritedClear.linkedName,
          equals('<a href="ex/CatString/clear.html">clear</a>'));
    });

    test('has enclosing element', () {
      expect(m1.enclosingElement.name, equals(classB.name));
    });

    test('overriden method', () {
      expect(m1.overriddenElement.runtimeType.toString(), 'Method');
    });

    test('method documentation', () {
      expect(m1.documentation,
          equals('This is a method.\n\n    new Apple().m1();'));
    });

    test('can have params', () {
      expect(isGreaterThan.canHaveParameters, isTrue);
    });

    test('has parameters', () {
      expect(isGreaterThan.hasParameters, isTrue);
    });

    test('return type', () {
      expect(isGreaterThan.modelType.createLinkedReturnTypeName(), 'bool');
    });

    test('return type has Future', () {
      expect(m7.linkedReturnType, contains('Future'));
    });

    test('parameter has generics in signature', () {
      expect(testGeneric.parameters[0].modelType.linkedName,
          'Map&lt;String, dynamic&gt;');
    });

    test('parameter is a function', () {
      var functionArgParam = m4.parameters[1];
      expect(functionArgParam.modelType.createLinkedReturnTypeName(), 'String');
    });

    test('generic method type args are rendered', () {
      expect(testGenericMethod.nameWithGenerics, 'testGenericMethod&lt;T&gt;');
    });

    test('doc for method with no return type', () {
      var comment = m5.documentation;
      var comment2 = m6.documentation;
      expect(comment, equals('Another method'));
      expect(comment2, equals('A shadowed method'));
    });

    test('method source code indents correctly', () {
      setConfig(addCrossdart: false);
      expect(convertToMap.sourceCode,
          'Map&lt;X, Y&gt; convertToMap() =&gt; null;');
    });

    test('method source code crossdartifies correctly', () {
      convertToMap.clearSourceCodeCache();
      var fakePath = "testing/test_package/lib/fake.dart";
      var offset = new File(fakePath)
          .readAsStringSync()
          .indexOf('Map<X, Y> convertToMap');
      expect(offset, isNonNegative,
          reason: "Can't find convertToMap function in ${fakePath}");
      if (Platform.isWindows) fakePath = fakePath.replaceAll('/', r'\\');
      new File(p.join(Directory.current.path, "crossdart.json"))
          .writeAsStringSync("""
              {"$fakePath":
                {"references":[{"offset":${offset},"end":${offset+3},"remotePath":"http://www.example.com/fake.dart"}]}}
      """);

      setConfig(addCrossdart: true, inputDir: Directory.current);

      expect(convertToMap.sourceCode,
          "<a class='crossdart-link' href='http://www.example.com/fake.dart'>Map</a>&lt;X, Y&gt; convertToMap() =&gt; null;");
    });

    group(".crossdartHtmlTag()", () {
      test('it returns an empty string when Crossdart support is disabled', () {
        setConfig(addCrossdart: false);
        expect(m1.crossdartHtmlTag, "");
      });
    });
  });

  group('Operators', () {
    Class specializedDuration;
    Operator plus;

    setUp(() {
      specializedDuration =
          exLibrary.classes.firstWhere((c) => c.name == 'SpecializedDuration');
      plus = specializedDuration.allOperators
          .firstWhere((o) => o.name == 'operator +');
    });

    test('has a fully qualified name', () {
      expect(plus.fullyQualifiedName, 'ex.SpecializedDuration.+');
    });

    test('can be inherited', () {
      expect(plus.isInherited, isTrue);
    });

    test('if inherited, and superclass not in package', () {
      expect(plus.enclosingElement.name, equals('SpecializedDuration'));
    });

    test("if inherited, has the class's library", () {
      expect(plus.library.name, 'ex');
    });

    test('if inherited, has a href relative to enclosed class', () {
      expect(plus.href, equals('ex/SpecializedDuration/operator_plus.html'));
    });

    test('if inherited and superclass not in package, link to enclosed class',
        () {
      expect(
          plus.linkedName,
          equals(
              '<a href="ex/SpecializedDuration/operator_plus.html">operator +</a>'));
    });
  });

  group('Field', () {
    Class c, LongFirstLine, CatString;
    Field f1, f2, constField, dynamicGetter, onlySetter;
    Field lengthX;
    Field sFromApple, mFromApple, mInB, autoCompress;
    Field isEmpty;

    setUp(() {
      c = exLibrary.classes.firstWhere((c) => c.name == 'Apple');
      f1 = c.staticProperties[0]; // n
      f2 = c.instanceProperties[0];
      constField = c.constants[0]; // string
      LongFirstLine =
          fakeLibrary.classes.firstWhere((c) => c.name == 'LongFirstLine');
      CatString = exLibrary.classes.firstWhere((c) => c.name == 'CatString');
      isEmpty = CatString.allInstanceProperties
          .firstWhere((p) => p.name == 'isEmpty');
      dynamicGetter = LongFirstLine.instanceProperties
          .firstWhere((p) => p.name == 'dynamicGetter');
      onlySetter = LongFirstLine.instanceProperties
          .firstWhere((p) => p.name == 'onlySetter');

      lengthX = fakeLibrary.classes
          .firstWhere((c) => c.name == 'WithGetterAndSetter')
          .allInstanceProperties
          .firstWhere((c) => c.name == 'lengthX');

      var appleClass =
          exLibrary.allClasses.firstWhere((c) => c.name == 'Apple');

      sFromApple =
          appleClass.allInstanceProperties.firstWhere((p) => p.name == 's');
      mFromApple =
          appleClass.allInstanceProperties.singleWhere((p) => p.name == 'm');

      mInB = exLibrary.allClasses
          .firstWhere((c) => c.name == 'B')
          .allInstanceProperties
          .firstWhere((p) => p.name == 'm');
      autoCompress = exLibrary.allClasses
          .firstWhere((c) => c.name == 'B')
          .allInstanceProperties
          .firstWhere((p) => p.name == 'autoCompress');
    });

    test('has a fully qualified name', () {
      expect(lengthX.fullyQualifiedName, 'fake.WithGetterAndSetter.lengthX');
    });

    test('has valid documentation', () {
      expect(mFromApple.hasDocumentation, isTrue);
      expect(mFromApple.documentation, "The read-write field `m`.");
    });

    test('inherited property has a linked name to superclass in package', () {
      expect(mInB.linkedName, equals('<a href="ex/Apple/m.html">m</a>'));
    });

    test(
        'inherited property has linked name to enclosed class, if superclass is not in package',
        () {
      expect(isEmpty.linkedName,
          equals('<a href="ex/CatString/isEmpty.html">isEmpty</a>'));
    });

    test('inherited property has the enclosing class', () {
      expect(isEmpty.enclosingElement.name, equals('CatString'));
    });

    test('inherited property has the enclosing class library', () {
      expect(isEmpty.library.name, equals('ex'));
    });

    test('has enclosing element', () {
      expect(f1.enclosingElement.name, equals(c.name));
    });

    test('is not const', () {
      expect(f1.isConst, isFalse);
    });

    test('is const', () {
      expect(constField.isConst, isTrue);
    });

    test('is not final', () {
      expect(f1.isFinal, isFalse);
    });

    test('is not static', () {
      expect(f2.isStatic, isFalse);
    });

    test('getter documentation', () {
      expect(dynamicGetter.documentation,
          equals('Dynamic getter. Readable only.'));
    });

    test('setter documentation', () {
      expect(onlySetter.documentation,
          equals('Only a setter, with a single param, of type double.'));
    });

    test('explicit getter and setter docs are unified', () {
      expect(lengthX.documentation, contains('Sets the length.'));
      expect(lengthX.documentation, contains('Returns a length.'));
    });

    test('Field with no explicit getter/setter has documentation', () {
      expect(autoCompress.documentation,
          contains('To enable, set `autoCompress` to `true`'));
    });

    test(
        'property with setter and getter and comments with asterixes do not show asterixes',
        () {
      expect(sFromApple.documentationAsHtml.contains('/**'), isFalse);
    });

    test('explicit getter/setter has a getter accessor', () {
      expect(lengthX.getter, isNotNull);
      expect(lengthX.getter.name, equals('lengthX'));
    });

    test('explicit getter/setter has a setter accessor', () {
      expect(lengthX.setter, isNotNull);
      expect(lengthX.setter.name, equals('lengthX='));
    });

    test('a stand-alone setter does not have a getter', () {
      expect(onlySetter.getter, isNull);
    });

    test(
        'has one inherited property for getter/setter when inherited from parameterized class',
        () {
      Class withGenericSub =
          exLibrary.classes.firstWhere((c) => c.name == 'WithGenericSub');
      expect(
          withGenericSub.inheritedProperties
              .where((p) => p.name == "prop")
              .length,
          equals(1));
    });
  });

  group('Accessor', () {
    Accessor onlyGetterGetter,
        onlyGetterSetter,
        onlySetterGetter,
        onlySetterSetter;

    Class classB;

    setUp(() {
      TopLevelVariable justGetter =
          fakeLibrary.properties.firstWhere((p) => p.name == 'justGetter');
      onlyGetterGetter = justGetter.getter;
      onlyGetterSetter = justGetter.setter;
      TopLevelVariable justSetter =
          fakeLibrary.properties.firstWhere((p) => p.name == 'justSetter');
      onlySetterSetter = justSetter.setter;
      onlySetterGetter = justSetter.getter;

      classB = exLibrary.classes.singleWhere((c) => c.name == 'B');
    });

    test('are available on top-level variables', () {
      expect(onlyGetterGetter.name, equals('justGetter'));
      expect(onlyGetterSetter, isNull);
      expect(onlySetterGetter, isNull);
      expect(onlySetterSetter.name, equals('justSetter='));
    });

    test('if overridden, gets documentation from superclasses', () {
      final doc = classB.allInstanceProperties
          .firstWhere((p) => p.name == "s")
          .getter
          .documentation;
      expect(doc, equals("The getter for `s`"));
    });

    test(
        "has correct linked return type if the return type is a parameterized typedef",
        () {
      Class apple = exLibrary.classes.firstWhere((c) => c.name == 'Apple');
      final fieldWithTypedef = apple.allInstanceProperties
          .firstWhere((m) => m.name == "fieldWithTypedef");
      expect(
          fieldWithTypedef.linkedReturnType,
          equals(
              '<a href="ex/ParameterizedTypedef.html">ParameterizedTypedef</a>&lt;bool&gt;'));
    });
  });

  group('Top-level Variable', () {
    TopLevelVariable v;
    TopLevelVariable v3, justGetter, justSetter;
    TopLevelVariable setAndGet, mapWithDynamicKeys;

    setUp(() {
      v = exLibrary.properties.firstWhere((p) => p.name == 'number');
      v3 = exLibrary.properties.firstWhere((p) => p.name == 'y');
      justGetter =
          fakeLibrary.properties.firstWhere((p) => p.name == 'justGetter');
      justSetter =
          fakeLibrary.properties.firstWhere((p) => p.name == 'justSetter');
      setAndGet =
          fakeLibrary.properties.firstWhere((p) => p.name == 'setAndGet');
      mapWithDynamicKeys = fakeLibrary.properties
          .firstWhere((p) => p.name == 'mapWithDynamicKeys');
    });

    test('has a fully qualified name', () {
      expect(justGetter.fullyQualifiedName, 'fake.justGetter');
    });

    test('type arguments are correct', () {
      expect(mapWithDynamicKeys.modelType.typeArguments, hasLength(2));
      expect(mapWithDynamicKeys.modelType.typeArguments.first.name,
          equals('dynamic'));
      expect(mapWithDynamicKeys.modelType.typeArguments.last.name,
          equals('String'));
    });

    test('has enclosing element', () {
      expect(v.enclosingElement.name, equals(exLibrary.name));
    });

    test('found two properties', () {
      expect(exLibrary.properties, hasLength(5));
    });

    test('linked return type is a double', () {
      expect(v.linkedReturnType, 'double');
    });

    test('linked return type is dynamic', () {
      expect(v3.linkedReturnType, 'dynamic');
    });

    test('just a getter has documentation', () {
      expect(justGetter.documentation,
          equals('Just a getter. No partner setter.'));
    });

    test('just a setter has documentation', () {
      expect(justSetter.documentation,
          equals('Just a setter. No partner getter.'));
    });

    test('a distinct getter and setters docs appear in the propertys docs', () {
      expect(setAndGet.documentation, contains('The getter for setAndGet.'));
      expect(setAndGet.documentation, contains('The setter for setAndGet.'));
    });

    test('has a getter accessor', () {
      expect(setAndGet.getter, isNotNull);
      expect(setAndGet.getter.name, equals('setAndGet'));
    });

    test('has a setter accessor', () {
      expect(setAndGet.setter, isNotNull);
      expect(setAndGet.setter.name, equals('setAndGet='));
    });
  });

  group('Constant', () {
    TopLevelVariable greenConstant,
        cat,
        orangeConstant,
        prettyColorsConstant,
        deprecated;

    setUp(() {
      greenConstant =
          exLibrary.constants.firstWhere((c) => c.name == 'COLOR_GREEN');
      orangeConstant =
          exLibrary.constants.firstWhere((c) => c.name == 'COLOR_ORANGE');
      prettyColorsConstant =
          exLibrary.constants.firstWhere((c) => c.name == 'PRETTY_COLORS');
      cat = exLibrary.constants.firstWhere((c) => c.name == 'MY_CAT');
      deprecated =
          exLibrary.constants.firstWhere((c) => c.name == 'deprecated');
    });

    test('has a fully qualified name', () {
      expect(greenConstant.fullyQualifiedName, 'ex.COLOR_GREEN');
    });

    test('has enclosing element', () {
      expect(greenConstant.enclosingElement.name, equals(exLibrary.name));
    });

    test('found all the constants', () {
      expect(exLibrary.constants, hasLength(9));
    });

    test('COLOR_GREEN is constant', () {
      expect(greenConstant.isConst, isTrue);
    });

    test('COLOR_ORANGE has correct value', () {
      expect(orangeConstant.constantValue, "&#39;orange&#39;");
    });

    test('PRETTY_COLORS', () {
      expect(prettyColorsConstant.constantValue,
          "const &lt;String&gt; [COLOR_GREEN, COLOR_ORANGE, &#39;blue&#39;]");
    });

    test('MY_CAT is linked', () {
      expect(cat.constantValue,
          'const <a href="ex/ConstantCat-class.html">ConstantCat</a>(&#39;tabby&#39;)');
    });

    test('exported property', () {
      expect(deprecated.library.name, equals('ex'));
    });
  });

  group('Constructor', () {
    Constructor appleDefaultConstructor, constCatConstructor;
    Constructor appleConstructorFromString;
    Class apple, constCat;
    setUp(() {
      apple = exLibrary.classes.firstWhere((c) => c.name == 'Apple');
      constCat = exLibrary.classes.firstWhere((c) => c.name == 'ConstantCat');
      constCatConstructor = constCat.constructors[0];
      appleDefaultConstructor =
          apple.constructors.firstWhere((c) => c.name == 'Apple');
      appleConstructorFromString =
          apple.constructors.firstWhere((c) => c.name == 'Apple.fromString');
    });

    test('has a fully qualified name', () {
      expect(
          appleConstructorFromString.fullyQualifiedName, 'ex.Apple.fromString');
    });

    test('has enclosing element', () {
      expect(appleDefaultConstructor.enclosingElement.name, equals(apple.name));
    });

    test('has contructor', () {
      expect(appleDefaultConstructor, isNotNull);
      expect(appleDefaultConstructor.name, equals('Apple'));
      expect(appleDefaultConstructor.shortName, equals('Apple'));
    });

    test('title has factory qualifier', () {
      expect(appleConstructorFromString.fullKind, 'factory constructor');
    });

    test('title has const qualifier', () {
      expect(constCatConstructor.fullKind, 'const constructor');
    });

    test('title has no qualifiers', () {
      expect(appleDefaultConstructor.fullKind, 'constructor');
    });

    test('shortName', () {
      expect(appleConstructorFromString.shortName, equals('fromString'));
    });
  });

  group('ModelType', () {
    Field fList;

    setUp(() {
      fList = exLibrary.classes
          .firstWhere((c) => c.name == 'B')
          .instanceProperties
          .singleWhere((p) => p.name == 'list');
    });

    test('parameterized type', () {
      expect(fList.modelType.isParameterizedType, isTrue);
    });
  });

  group('Typedef', () {
    Typedef t;

    setUp(() {
      t = exLibrary.typedefs.firstWhere((t) => t.name == 'processMessage');
    });

    test('has a fully qualified name', () {
      expect(t.fullyQualifiedName, 'ex.processMessage');
    });

    test('has enclosing element', () {
      expect(t.enclosingElement.name, equals(exLibrary.name));
    });

    test('docs', () {
      expect(t.documentation, equals(''));
    });

    test('linked return type', () {
      expect(t.linkedReturnType, equals('String'));
    });

    test("name with generics", () {
      expect(t.nameWithGenerics, equals('processMessage&lt;T&gt;'));
    });
  });

  group('Parameter', () {
    Class c, fClass;
    Method isGreaterThan,
        asyncM,
        methodWithGenericParam,
        paramFromExportLib,
        methodWithTypedefParam;
    Parameter intNumber, intCheckOptional;

    setUp(() {
      c = exLibrary.classes.firstWhere((c) => c.name == 'Apple');
      paramFromExportLib =
          c.instanceMethods.singleWhere((m) => m.name == 'paramFromExportLib');
      isGreaterThan =
          c.instanceMethods.singleWhere((m) => m.name == 'isGreaterThan');
      asyncM = exLibrary.classes
          .firstWhere((c) => c.name == 'Dog')
          .instanceMethods
          .firstWhere((m) => m.name == 'foo');
      intNumber = isGreaterThan.parameters.first;
      intCheckOptional = isGreaterThan.parameters.last;
      fClass = exLibrary.classes.firstWhere((c) => c.name == 'F');
      methodWithGenericParam = fClass.instanceMethods
          .singleWhere((m) => m.name == 'methodWithGenericParam');
      methodWithTypedefParam = c.instanceMethods
          .singleWhere((m) => m.name == 'methodWithTypedefParam');
    });

    test('has parameters', () {
      expect(isGreaterThan.parameters, hasLength(2));
    });

    test('is optional', () {
      expect(intCheckOptional.isOptional, isTrue);
      expect(intNumber.isOptional, isFalse);
    });

    test('default value', () {
      expect(intCheckOptional.defaultValue, '5');
    });

    test('is named', () {
      expect(intCheckOptional.isOptionalNamed, isTrue);
    });

    test('linkedName', () {
      expect(intCheckOptional.modelType.linkedName, 'int');
    });

    test('async return type', () {
      expect(asyncM.linkedReturnType, 'Future');
    });

    test('param with generics', () {
      var params = methodWithGenericParam.linkedParams();
      expect(params.contains('List') && params.contains('Apple'), isTrue);
    });

    test('commas on same param line', () {
      ModelFunction method =
          fakeLibrary.functions.firstWhere((f) => f.name == 'paintImage1');
      String params = method.linkedParams();
      expect(params, contains(', </span>'));
    });

    test('param exported in library', () {
      var param = paramFromExportLib.parameters[0];
      expect(param.name, equals('helper'));
      expect(param.library.name, equals('ex'));
    });

    test('typdef param is linked', () {
      var params = methodWithTypedefParam.linkedParams();
      expect(params.contains('<a href="ex/processMessage.html">'), isTrue);
    });
  });

  group('Implementors', () {
    Class apple;
    Class b;
    List<Class> implA, implC;

    setUp(() {
      apple = exLibrary.classes.firstWhere((c) => c.name == 'Apple');
      b = exLibrary.classes.firstWhere((c) => c.name == 'B');
      implA = apple.implementors;
      implC = exLibrary.classes.firstWhere((c) => c.name == 'Cat').implementors;
    });

    test('the first class is Apple', () {
      expect(apple.name, equals('Apple'));
    });

    test('apple has some implementors', () {
      expect(apple.hasImplementors, isTrue);
      expect(implA, isNotNull);
      expect(implA, hasLength(1));
      expect(implA[0].name, equals('B'));
    });

    test('Cat has implementors', () {
      expect(implC, hasLength(3));
      List<String> implementors = ['B', 'Dog', 'ConstantCat'];
      expect(implementors.contains(implC[0].name), isTrue);
      expect(implementors.contains(implC[1].name), isTrue);
      expect(implementors.contains(implC[2].name), isTrue);
    });

    test('B does not have implementors', () {
      expect(b, isNotNull);
      expect(b.name, equals('B'));
      expect(b.implementors, hasLength(0));
    });
  });

  group('Errors and exceptions', () {
    final List<String> expectedNames = [
      'MyError',
      'MyException',
      'MyErrorImplements',
      'MyExceptionImplements'
    ];
    test('library has the exact errors/exceptions we expect', () {
      expect(exLibrary.exceptions.map((e) => e.name),
          unorderedEquals(expectedNames));
    });
  });

  group('Annotations', () {
    Class forAnnotation, dog;
    Method ctr;
    setUp(() {
      forAnnotation =
          exLibrary.classes.firstWhere((c) => c.name == 'HasAnnotation');
      dog = exLibrary.classes.firstWhere((c) => c.name == 'Dog');
      ctr = dog.staticMethods.firstWhere((c) => c.name == 'createDog');
    });

    test('is not null', () => expect(forAnnotation, isNotNull));

    test('has annotations', () => expect(forAnnotation.hasAnnotations, true));

    test('has one annotation',
        () => expect(forAnnotation.annotations, hasLength(1)));

    test('has the right annotation and is escaped', () {
      expect(
          forAnnotation.annotations.first,
          equals(
              '@<a href="ex/ForAnnotation-class.html">ForAnnotation</a>(&#39;my value&#39;)'));
    });

    test('methods has the right annotation', () {
      var m = dog.instanceMethods.singleWhere((m) => m.name == 'getClassA');
      expect(m.hasAnnotations, isTrue);
      expect(m.annotations.first, equals('@deprecated'));
    });

    test('method annotations have the right link and are escaped', () {
      expect(
          ctr.annotations[0],
          equals(
              '@<a href="ex/Deprecated-class.html">Deprecated</a>(&quot;Internal use&quot;)'));
    });
  });

  group('Sorting by name', () {
    // Order by uppercased lexical ordering for non-digits,
    // lexicographical ordering of embedded digit sequences.
    var names = [
      r"",
      r"$",
      r"0",
      r"0a",
      r"00",
      r"1",
      r"01",
      r"_",
      r"a",
      r"aaab",
      r"aab",
      r"Ab",
      r"B",
      r"bA",
      r"x0$",
      r"x1$",
      r"x01$",
      r"x001$",
      r"x10$",
      r"x010$",
      r"x100$",
    ];
    for (var i = 1; i < names.length; i++) {
      var a = new StringName(names[i - 1]);
      var b = new StringName(names[i]);
      test('"$a" < "$b"', () {
        expect(byName(a, a), 0);
        expect(byName(b, b), 0);
        expect(byName(a, b), -1);
        expect(byName(b, a), 1);
      });
    }
  });
}

class StringName implements Nameable {
  @override
  final String name;
  StringName(this.name);
  @override
  String toString() => name;
}