| // Copyright (c) 2014, 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. |
| |
| import 'package:unittest/unittest.dart'; |
| import 'package:source_span/source_span.dart'; |
| import 'package:source_span/src/colors.dart' as colors; |
| |
| main() { |
| var span; |
| setUp(() { |
| span = new SourceSpan( |
| new SourceLocation(5, sourceUrl: "foo.dart"), |
| new SourceLocation(12, sourceUrl: "foo.dart"), |
| "foo bar"); |
| }); |
| |
| group('errors', () { |
| group('for new SourceSpan()', () { |
| test('source URLs must match', () { |
| var start = new SourceLocation(0, sourceUrl: "foo.dart"); |
| var end = new SourceLocation(1, sourceUrl: "bar.dart"); |
| expect(() => new SourceSpan(start, end, "_"), throwsArgumentError); |
| }); |
| |
| test('end must come after start', () { |
| var start = new SourceLocation(1); |
| var end = new SourceLocation(0); |
| expect(() => new SourceSpan(start, end, "_"), throwsArgumentError); |
| }); |
| |
| test('text must be the right length', () { |
| var start = new SourceLocation(0); |
| var end = new SourceLocation(1); |
| expect(() => new SourceSpan(start, end, "abc"), throwsArgumentError); |
| }); |
| }); |
| |
| group('for union()', () { |
| test('source URLs must match', () { |
| var other = new SourceSpan( |
| new SourceLocation(12, sourceUrl: "bar.dart"), |
| new SourceLocation(13, sourceUrl: "bar.dart"), |
| "_"); |
| |
| expect(() => span.union(other), throwsArgumentError); |
| }); |
| |
| test('spans may not be disjoint', () { |
| var other = new SourceSpan( |
| new SourceLocation(13, sourceUrl: 'foo.dart'), |
| new SourceLocation(14, sourceUrl: 'foo.dart'), |
| "_"); |
| |
| expect(() => span.union(other), throwsArgumentError); |
| }); |
| }); |
| |
| test('for compareTo() source URLs must match', () { |
| var other = new SourceSpan( |
| new SourceLocation(12, sourceUrl: "bar.dart"), |
| new SourceLocation(13, sourceUrl: "bar.dart"), |
| "_"); |
| |
| expect(() => span.compareTo(other), throwsArgumentError); |
| }); |
| }); |
| |
| test('fields work correctly', () { |
| expect(span.start, equals(new SourceLocation(5, sourceUrl: "foo.dart"))); |
| expect(span.end, equals(new SourceLocation(12, sourceUrl: "foo.dart"))); |
| expect(span.sourceUrl, equals(Uri.parse("foo.dart"))); |
| expect(span.length, equals(7)); |
| }); |
| |
| group("union()", () { |
| test("works with a preceding adjacent span", () { |
| var other = new SourceSpan( |
| new SourceLocation(0, sourceUrl: "foo.dart"), |
| new SourceLocation(5, sourceUrl: "foo.dart"), |
| "hey, "); |
| |
| var result = span.union(other); |
| expect(result.start, equals(other.start)); |
| expect(result.end, equals(span.end)); |
| expect(result.text, equals("hey, foo bar")); |
| }); |
| |
| test("works with a preceding overlapping span", () { |
| var other = new SourceSpan( |
| new SourceLocation(0, sourceUrl: "foo.dart"), |
| new SourceLocation(8, sourceUrl: "foo.dart"), |
| "hey, foo"); |
| |
| var result = span.union(other); |
| expect(result.start, equals(other.start)); |
| expect(result.end, equals(span.end)); |
| expect(result.text, equals("hey, foo bar")); |
| }); |
| |
| test("works with a following adjacent span", () { |
| var other = new SourceSpan( |
| new SourceLocation(12, sourceUrl: "foo.dart"), |
| new SourceLocation(16, sourceUrl: "foo.dart"), |
| " baz"); |
| |
| var result = span.union(other); |
| expect(result.start, equals(span.start)); |
| expect(result.end, equals(other.end)); |
| expect(result.text, equals("foo bar baz")); |
| }); |
| |
| test("works with a following overlapping span", () { |
| var other = new SourceSpan( |
| new SourceLocation(9, sourceUrl: "foo.dart"), |
| new SourceLocation(16, sourceUrl: "foo.dart"), |
| "bar baz"); |
| |
| var result = span.union(other); |
| expect(result.start, equals(span.start)); |
| expect(result.end, equals(other.end)); |
| expect(result.text, equals("foo bar baz")); |
| }); |
| |
| test("works with an internal overlapping span", () { |
| var other = new SourceSpan( |
| new SourceLocation(7, sourceUrl: "foo.dart"), |
| new SourceLocation(10, sourceUrl: "foo.dart"), |
| "o b"); |
| |
| expect(span.union(other), equals(span)); |
| }); |
| |
| test("works with an external overlapping span", () { |
| var other = new SourceSpan( |
| new SourceLocation(0, sourceUrl: "foo.dart"), |
| new SourceLocation(16, sourceUrl: "foo.dart"), |
| "hey, foo bar baz"); |
| |
| expect(span.union(other), equals(other)); |
| }); |
| }); |
| |
| group("message()", () { |
| test("prints the text being described", () { |
| expect(span.message("oh no"), equals(""" |
| line 1, column 6 of foo.dart: oh no |
| foo bar |
| ^^^^^^^""")); |
| }); |
| |
| test("gracefully handles a missing source URL", () { |
| var span = new SourceSpan( |
| new SourceLocation(5), new SourceLocation(12), "foo bar"); |
| |
| expect(span.message("oh no"), equalsIgnoringWhitespace(""" |
| line 1, column 6: oh no |
| foo bar |
| ^^^^^^^""")); |
| }); |
| |
| test("gracefully handles empty text", () { |
| var span = new SourceSpan( |
| new SourceLocation(5), new SourceLocation(5), ""); |
| |
| expect(span.message("oh no"), |
| equals("line 1, column 6: oh no")); |
| }); |
| |
| test("doesn't colorize if color is false", () { |
| expect(span.message("oh no", color: false), equals(""" |
| line 1, column 6 of foo.dart: oh no |
| foo bar |
| ^^^^^^^""")); |
| }); |
| |
| test("colorizes if color is true", () { |
| expect(span.message("oh no", color: true), |
| equals(""" |
| line 1, column 6 of foo.dart: oh no |
| ${colors.RED}foo bar |
| ^^^^^^^${colors.NONE}""")); |
| }); |
| |
| test("uses the given color if it's passed", () { |
| expect(span.message("oh no", color: colors.YELLOW), equals(""" |
| line 1, column 6 of foo.dart: oh no |
| ${colors.YELLOW}foo bar |
| ^^^^^^^${colors.NONE}""")); |
| }); |
| }); |
| |
| group("compareTo()", () { |
| test("sorts by start location first", () { |
| var other = new SourceSpan( |
| new SourceLocation(6, sourceUrl: "foo.dart"), |
| new SourceLocation(14, sourceUrl: "foo.dart"), |
| "oo bar b"); |
| |
| expect(span.compareTo(other), lessThan(0)); |
| expect(other.compareTo(span), greaterThan(0)); |
| }); |
| |
| test("sorts by length second", () { |
| var other = new SourceSpan( |
| new SourceLocation(5, sourceUrl: "foo.dart"), |
| new SourceLocation(14, sourceUrl: "foo.dart"), |
| "foo bar b"); |
| |
| expect(span.compareTo(other), lessThan(0)); |
| expect(other.compareTo(span), greaterThan(0)); |
| }); |
| |
| test("considers equal spans equal", () { |
| expect(span.compareTo(span), equals(0)); |
| }); |
| }); |
| |
| group("equality", () { |
| test("two spans with the same locations are equal", () { |
| var other = new SourceSpan( |
| new SourceLocation(5, sourceUrl: "foo.dart"), |
| new SourceLocation(12, sourceUrl: "foo.dart"), |
| "foo bar"); |
| |
| expect(span, equals(other)); |
| }); |
| |
| test("a different start isn't equal", () { |
| var other = new SourceSpan( |
| new SourceLocation(0, sourceUrl: "foo.dart"), |
| new SourceLocation(12, sourceUrl: "foo.dart"), |
| "hey, foo bar"); |
| |
| expect(span, isNot(equals(other))); |
| }); |
| |
| test("a different end isn't equal", () { |
| var other = new SourceSpan( |
| new SourceLocation(5, sourceUrl: "foo.dart"), |
| new SourceLocation(16, sourceUrl: "foo.dart"), |
| "foo bar baz"); |
| |
| expect(span, isNot(equals(other))); |
| }); |
| |
| test("a different source URL isn't equal", () { |
| var other = new SourceSpan( |
| new SourceLocation(5, sourceUrl: "bar.dart"), |
| new SourceLocation(12, sourceUrl: "bar.dart"), |
| "foo bar"); |
| |
| expect(span, isNot(equals(other))); |
| }); |
| }); |
| } |