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8f07a5864b
* Add hasAGoodToStringDeep and equalsIgnoringHashCodes methods. Methods simplify testing of toStringDeep calls and other cases where methods return strings containing hash codes.
183 lines
7.7 KiB
Dart
183 lines
7.7 KiB
Dart
// Copyright 2016 The Chromium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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import 'package:flutter_test/flutter_test.dart';
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/// Class that makes it easy to mock common toStringDeep behavior.
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class _MockToStringDeep {
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_MockToStringDeep(String str) {
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final List<String> lines = str.split('\n');
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_lines = <String>[];
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for (int i = 0; i < lines.length - 1; ++i)
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_lines.add('${lines[i]}\n');
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// If the last line is empty, that really just means that the previous
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// line was terminated with a line break.
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if (lines.isNotEmpty && lines.last.isNotEmpty) {
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_lines.add(lines.last);
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}
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}
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_MockToStringDeep.fromLines(this._lines);
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/// Lines in the message to display when [toStringDeep] is called.
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/// For correct toStringDeep behavior, each line should be terminated with a
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/// line break.
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List<String> _lines;
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String toStringDeep([String prefixLineOne="", String prefixOtherLines=""]) {
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final StringBuffer sb = new StringBuffer();
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if (_lines.isNotEmpty)
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sb.write('$prefixLineOne${_lines.first}');
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for (int i = 1; i < _lines.length; ++i)
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sb.write('$prefixOtherLines${_lines[i]}');
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return sb.toString();
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}
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@override
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String toString() => toStringDeep();
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}
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void main() {
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test('hasOneLineDescription', () {
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expect('Hello', hasOneLineDescription);
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expect('Hello\nHello', isNot(hasOneLineDescription));
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expect(' Hello', isNot(hasOneLineDescription));
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expect('Hello ', isNot(hasOneLineDescription));
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expect(new Object(), isNot(hasOneLineDescription));
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});
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test('hasAGoodToStringDeep', () {
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expect(new _MockToStringDeep('Hello\n World\n'), hasAGoodToStringDeep);
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// Not terminated with a line break.
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expect(new _MockToStringDeep('Hello\n World'), isNot(hasAGoodToStringDeep));
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// Trailing whitespace on last line.
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expect(new _MockToStringDeep('Hello\n World \n'),
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isNot(hasAGoodToStringDeep));
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expect(new _MockToStringDeep('Hello\n World\t\n'),
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isNot(hasAGoodToStringDeep));
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// Leading whitespace on line 1.
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expect(new _MockToStringDeep(' Hello\n World \n'),
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isNot(hasAGoodToStringDeep));
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// Single line.
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expect(new _MockToStringDeep('Hello World'), isNot(hasAGoodToStringDeep));
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expect(new _MockToStringDeep('Hello World\n'), isNot(hasAGoodToStringDeep));
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expect(new _MockToStringDeep('Hello: World\nFoo: bar\n'),
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hasAGoodToStringDeep);
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expect(new _MockToStringDeep('Hello: World\nFoo: 42\n'),
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hasAGoodToStringDeep);
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// Contains default Object.toString().
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expect(new _MockToStringDeep('Hello: World\nFoo: ${new Object()}\n'),
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isNot(hasAGoodToStringDeep));
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expect(new _MockToStringDeep('A\n├─B\n'), hasAGoodToStringDeep);
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expect(new _MockToStringDeep('A\n├─B\n╘══════\n'), hasAGoodToStringDeep);
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// Last line is all whitespace or vertical line art.
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expect(new _MockToStringDeep('A\n├─B\n\n'), isNot(hasAGoodToStringDeep));
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expect(new _MockToStringDeep('A\n├─B\n│\n'), isNot(hasAGoodToStringDeep));
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expect(new _MockToStringDeep('A\n├─B\n│\n'), isNot(hasAGoodToStringDeep));
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expect(new _MockToStringDeep('A\n├─B\n│\n'), isNot(hasAGoodToStringDeep));
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expect(new _MockToStringDeep('A\n├─B\n╎\n'), isNot(hasAGoodToStringDeep));
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expect(new _MockToStringDeep('A\n├─B\n║\n'), isNot(hasAGoodToStringDeep));
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expect(new _MockToStringDeep('A\n├─B\n │\n'), isNot(hasAGoodToStringDeep));
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expect(new _MockToStringDeep('A\n├─B\n ╎\n'), isNot(hasAGoodToStringDeep));
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expect(new _MockToStringDeep('A\n├─B\n ║\n'), isNot(hasAGoodToStringDeep));
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expect(new _MockToStringDeep('A\n├─B\n ││\n'), isNot(hasAGoodToStringDeep));
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expect(new _MockToStringDeep(
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'A\n'
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'├─B\n'
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'│\n'
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'└─C\n'), hasAGoodToStringDeep);
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// Last line is all whitespace or vertical line art.
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expect(new _MockToStringDeep(
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'A\n'
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'├─B\n'
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'│\n'), isNot(hasAGoodToStringDeep));
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expect(new _MockToStringDeep.fromLines(
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<String>['Paragraph#00000\n',
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' │ size: (400x200)\n',
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' ╘═╦══ text ═══\n',
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' ║ TextSpan:\n',
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' ║ "I polished up that handle so carefullee\n',
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' ║ That now I am the Ruler of the Queen\'s Navee!"\n',
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' ╚═══════════\n']), hasAGoodToStringDeep);
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// Text span
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expect(new _MockToStringDeep.fromLines(
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<String>['Paragraph#00000\n',
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' │ size: (400x200)\n',
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' ╘═╦══ text ═══\n',
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' ║ TextSpan:\n',
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' ║ "I polished up that handle so carefullee\nThat now I am the Ruler of the Queen\'s Navee!"\n',
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' ╚═══════════\n']), isNot(hasAGoodToStringDeep));
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});
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test('normalizeHashCodesEquals', () {
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expect('Foo#34219', equalsIgnoringHashCodes('Foo#00000'));
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expect('Foo#34219', equalsIgnoringHashCodes('Foo#12345'));
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expect('Foo#34219', equalsIgnoringHashCodes('Foo#abcdf'));
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expect('Foo#34219', isNot(equalsIgnoringHashCodes('Foo')));
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expect('Foo#34219', isNot(equalsIgnoringHashCodes('Foo#')));
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expect('Foo#34219', isNot(equalsIgnoringHashCodes('Foo#0')));
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expect('Foo#34219', isNot(equalsIgnoringHashCodes('Foo#00')));
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expect('Foo#34219', isNot(equalsIgnoringHashCodes('Foo#00000 ')));
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expect('Foo#34219', isNot(equalsIgnoringHashCodes('Foo#000000')));
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expect('Foo#34219', isNot(equalsIgnoringHashCodes('Foo#123456')));
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expect('Foo#34219:', equalsIgnoringHashCodes('Foo#00000:'));
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expect('Foo#34219:', isNot(equalsIgnoringHashCodes('Foo#00000')));
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expect('Foo#a3b4d', equalsIgnoringHashCodes('Foo#00000'));
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expect('Foo#a3b4d', equalsIgnoringHashCodes('Foo#12345'));
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expect('Foo#a3b4d', equalsIgnoringHashCodes('Foo#abcdf'));
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expect('Foo#a3b4d', isNot(equalsIgnoringHashCodes('Foo')));
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expect('Foo#a3b4d', isNot(equalsIgnoringHashCodes('Foo#')));
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expect('Foo#a3b4d', isNot(equalsIgnoringHashCodes('Foo#0')));
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expect('Foo#a3b4d', isNot(equalsIgnoringHashCodes('Foo#00')));
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expect('Foo#a3b4d', isNot(equalsIgnoringHashCodes('Foo#00000 ')));
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expect('Foo#a3b4d', isNot(equalsIgnoringHashCodes('Foo#000000')));
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expect('Foo#a3b4d', isNot(equalsIgnoringHashCodes('Foo#123456')));
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expect('Foo#A3b4D', isNot(equalsIgnoringHashCodes('Foo#00000')));
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expect('Foo#12345(Bar#9110f)',
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equalsIgnoringHashCodes('Foo#00000(Bar#00000)'));
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expect('Foo#12345(Bar#9110f)',
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isNot(equalsIgnoringHashCodes('Foo#00000(Bar#)')));
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expect('Foo', isNot(equalsIgnoringHashCodes('Foo#00000')));
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expect('Foo#', isNot(equalsIgnoringHashCodes('Foo#00000')));
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expect('Foo#3421', isNot(equalsIgnoringHashCodes('Foo#00000')));
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expect('Foo#342193', isNot(equalsIgnoringHashCodes('Foo#00000')));
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});
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test('moreOrLessEquals', () {
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expect(0.0, moreOrLessEquals(1e-11));
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expect(1e-11, moreOrLessEquals(0.0));
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expect(-1e-11, moreOrLessEquals(0.0));
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expect(0.0, isNot(moreOrLessEquals(1e11)));
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expect(1e11, isNot(moreOrLessEquals(0.0)));
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expect(-1e11, isNot(moreOrLessEquals(0.0)));
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expect(0.0, isNot(moreOrLessEquals(1.0)));
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expect(1.0, isNot(moreOrLessEquals(0.0)));
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expect(-1.0, isNot(moreOrLessEquals(0.0)));
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expect(1e-11, moreOrLessEquals(-1e-11));
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expect(-1e-11, moreOrLessEquals(1e-11));
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expect(11.0, isNot(moreOrLessEquals(-11.0, epsilon: 1.0)));
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expect(-11.0, isNot(moreOrLessEquals(11.0, epsilon: 1.0)));
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expect(11.0, moreOrLessEquals(-11.0, epsilon: 100.0));
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expect(-11.0, moreOrLessEquals(11.0, epsilon: 100.0));
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});
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}
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