Test all trivial fields

pkgs/pubspec_parse/lib/src/pubspec.dart

diff --git a/pkgs/pubspec_parse/lib/src/pubspec.dart b/pkgs/pubspec_parse/lib/src/pubspec.dart
index 90efa1c..06d358a 100644
--- a/pkgs/pubspec_parse/lib/src/pubspec.dart
+++ b/pkgs/pubspec_parse/lib/src/pubspec.dart
@@ -13,9 +13,12 @@
 @JsonSerializable(createToJson: false)
 class Pubspec {
   final String name;
-  final String homepage;
-  final String documentation;
+
+  @JsonKey(fromJson: _versionFromString)
+  final Version version;
+
   final String description;
+  final String homepage;
 
   /// If there is exactly 1 value in [authors], returns it.
   ///
@@ -30,13 +33,11 @@
   }
 
   final List<String> authors;
+  final String documentation;
 
   @JsonKey(fromJson: _environmentMap)
   final Map<String, VersionConstraint> environment;
 
-  @JsonKey(fromJson: _versionFromString)
-  final Version version;
-
   @JsonKey(fromJson: _getDeps, nullable: false)
   final Map<String, Dependency> dependencies;
 

pkgs/pubspec_parse/test/parse_test.dart

diff --git a/pkgs/pubspec_parse/test/parse_test.dart b/pkgs/pubspec_parse/test/parse_test.dart
index bfe20f0..d163e5a 100644
--- a/pkgs/pubspec_parse/test/parse_test.dart
+++ b/pkgs/pubspec_parse/test/parse_test.dart
@@ -7,13 +7,41 @@
 import 'test_utils.dart';
 
 void main() {
-  test('trival', () {
+  test('minimal set values', () {
     var value = parse({'name': 'sample'});
     expect(value.name, 'sample');
+    expect(value.version, isNull);
+    expect(value.description, isNull);
+    expect(value.homepage, isNull);
     // ignore: deprecated_member_use
     expect(value.author, isNull);
     expect(value.authors, isEmpty);
+    expect(value.documentation, isNull);
     expect(value.dependencies, isEmpty);
+    expect(value.devDependencies, isEmpty);
+    expect(value.dependencyOverrides, isEmpty);
+  });
+
+  test('all fields set', () {
+    var value = parse({
+      'name': 'sample',
+      'version': '1.2.3',
+      'author': 'name@example.com',
+      'description': 'description',
+      'homepage': 'homepage',
+      'documentation': 'documentation'
+    });
+    expect(value.name, 'sample');
+    expect(value.version.toString(), '1.2.3');
+    expect(value.description, 'description');
+    expect(value.homepage, 'homepage');
+    // ignore: deprecated_member_use
+    expect(value.author, 'name@example.com');
+    expect(value.authors, ['name@example.com']);
+    expect(value.documentation, 'documentation');
+    expect(value.dependencies, isEmpty);
+    expect(value.devDependencies, isEmpty);
+    expect(value.dependencyOverrides, isEmpty);
   });
 
   group('author, authors', () {