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test: redo undo with text formatting (AppFlowy-IO#38)
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@MayurSMahajan
MayurSMahajan authored Apr 6, 2023
1 parent 7885d5f commit 85fde02
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282 changes: 282 additions & 0 deletions test/service/internal_key_event_handlers/redo_undo_handler_test.dart
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Original file line number Diff line number Diff line change
@@ -1,6 +1,7 @@
import 'dart:io';

import 'package:appflowy_editor/appflowy_editor.dart';
import 'package:appflowy_editor/src/extensions/text_node_extensions.dart';
import 'package:flutter/services.dart';
import 'package:flutter_test/flutter_test.dart';
import '../../infra/test_editor.dart';
Expand All @@ -12,6 +13,27 @@ void main() async {

group('redo_undo_handler_test.dart', () {
// TODO: need to test more cases.

testWidgets('Redo should do nothing if Undo is not yet performed',
(tester) async {
await _testRedoWithoutUndo(tester);
});

testWidgets('Undo and Redo works properly with text formatting bold',
(tester) async {
await _testWithTextFormattingBold(tester);
});

testWidgets('Undo and Redo works properly with text formatting italics',
(tester) async {
await _testWithTextFormattingItalics(tester);
});

testWidgets('Undo and Redo works properly with text formatting underline',
(tester) async {
await _testWithTextFormattingUnderline(tester);
});

testWidgets('Redo, Undo for backspace key, and selection is downward',
(tester) async {
await _testBackspaceUndoRedo(tester, true);
Expand All @@ -24,6 +46,266 @@ void main() async {
});
}

Future<void> _testRedoWithoutUndo(WidgetTester tester) async {
const text = 'Welcome to Appflowy 😁';
final editor = tester.editor
..insertTextNode(text)
..insertTextNode(text)
..insertTextNode(text);
await editor.startTesting();
final selection = Selection.single(path: [1], startOffset: 0);
await editor.updateSelection(selection);

expect(editor.documentLength, 3);

if (Platform.isWindows || Platform.isLinux) {
await editor.pressLogicKey(
LogicalKeyboardKey.keyZ,
isControlPressed: true,
isShiftPressed: true,
);
} else {
await editor.pressLogicKey(
LogicalKeyboardKey.keyZ,
isMetaPressed: true,
isShiftPressed: true,
);
}

expect(editor.documentLength, 3);
}

Future<void> _testWithTextFormattingBold(WidgetTester tester) async {
const text = 'Welcome to Appflowy 😁';
final editor = tester.editor
..insertTextNode(text)
..insertTextNode(text)
..insertTextNode(text);
await editor.startTesting();

final textNode = editor.nodeAtPath([0]) as TextNode;
var allBold = textNode.allSatisfyBoldInSelection(
Selection.single(path: [0], startOffset: 1, endOffset: text.length));

expect(textNode.toPlainText(), text);
expect(allBold, false);

final start = Position(path: [0], offset: 0);
final end = Position(path: [0], offset: text.length);
final selection = Selection(
start: start,
end: end,
);

await editor.updateSelection(selection);

if (Platform.isMacOS) {
await editor.pressLogicKey(
LogicalKeyboardKey.keyB,
isMetaPressed: true,
);
} else {
await editor.pressLogicKey(
LogicalKeyboardKey.keyB,
isControlPressed: true,
);
}

allBold = textNode.allSatisfyBoldInSelection(
Selection.single(path: [0], startOffset: 1, endOffset: text.length));
expect(allBold, true);

//undo should remove bold style and make it normal.
if (Platform.isMacOS) {
await editor.pressLogicKey(
LogicalKeyboardKey.keyZ,
isMetaPressed: true,
);
} else {
await editor.pressLogicKey(
LogicalKeyboardKey.keyZ,
isControlPressed: true,
);
}

allBold = textNode.allSatisfyBoldInSelection(
Selection.single(path: [0], startOffset: 1, endOffset: text.length));
expect(allBold, false);

//redo should make text bold.
if (Platform.isMacOS) {
await editor.pressLogicKey(
LogicalKeyboardKey.keyZ,
isMetaPressed: true,
isShiftPressed: true,
);
} else {
await editor.pressLogicKey(
LogicalKeyboardKey.keyZ,
isControlPressed: true,
isShiftPressed: true,
);
}

allBold = textNode.allSatisfyBoldInSelection(
Selection.single(path: [0], startOffset: 1, endOffset: text.length));
expect(allBold, true);
}

Future<void> _testWithTextFormattingItalics(WidgetTester tester) async {
const text = 'Welcome to Appflowy 😁';
final editor = tester.editor
..insertTextNode(text)
..insertTextNode(text)
..insertTextNode(text);
await editor.startTesting();

final textNode = editor.nodeAtPath([0]) as TextNode;
var allItalics = textNode.allSatisfyItalicInSelection(
Selection.single(path: [0], startOffset: 1, endOffset: text.length));

expect(textNode.toPlainText(), text);
expect(allItalics, false);

final start = Position(path: [0], offset: 0);
final end = Position(path: [0], offset: text.length);
final selection = Selection(
start: start,
end: end,
);

await editor.updateSelection(selection);

if (Platform.isMacOS) {
await editor.pressLogicKey(
LogicalKeyboardKey.keyI,
isMetaPressed: true,
);
} else {
await editor.pressLogicKey(
LogicalKeyboardKey.keyI,
isControlPressed: true,
);
}

allItalics = textNode.allSatisfyItalicInSelection(
Selection.single(path: [0], startOffset: 1, endOffset: text.length));
expect(allItalics, true);

//undo should remove italic style and make it normal.
if (Platform.isMacOS) {
await editor.pressLogicKey(
LogicalKeyboardKey.keyZ,
isMetaPressed: true,
);
} else {
await editor.pressLogicKey(
LogicalKeyboardKey.keyZ,
isControlPressed: true,
);
}

allItalics = textNode.allSatisfyItalicInSelection(
Selection.single(path: [0], startOffset: 1, endOffset: text.length));
expect(allItalics, false);

//redo should make text italic again.
if (Platform.isMacOS) {
await editor.pressLogicKey(
LogicalKeyboardKey.keyZ,
isMetaPressed: true,
isShiftPressed: true,
);
} else {
await editor.pressLogicKey(
LogicalKeyboardKey.keyZ,
isControlPressed: true,
isShiftPressed: true,
);
}

allItalics = textNode.allSatisfyItalicInSelection(
Selection.single(path: [0], startOffset: 1, endOffset: text.length));
expect(allItalics, true);
}

Future<void> _testWithTextFormattingUnderline(WidgetTester tester) async {
const text = 'Welcome to Appflowy 😁';
final editor = tester.editor
..insertTextNode(text)
..insertTextNode(text)
..insertTextNode(text);
await editor.startTesting();

final textNode = editor.nodeAtPath([0]) as TextNode;
var allUnderline = textNode.allSatisfyUnderlineInSelection(
Selection.single(path: [0], startOffset: 1, endOffset: text.length));

expect(textNode.toPlainText(), text);
expect(allUnderline, false);

final start = Position(path: [0], offset: 0);
final end = Position(path: [0], offset: text.length);
final selection = Selection(
start: start,
end: end,
);

await editor.updateSelection(selection);

if (Platform.isMacOS) {
await editor.pressLogicKey(
LogicalKeyboardKey.keyU,
isMetaPressed: true,
);
} else {
await editor.pressLogicKey(
LogicalKeyboardKey.keyU,
isControlPressed: true,
);
}

allUnderline = textNode.allSatisfyUnderlineInSelection(
Selection.single(path: [0], startOffset: 1, endOffset: text.length));
expect(allUnderline, true);

//undo should remove bold style and make it normal.
if (Platform.isMacOS) {
await editor.pressLogicKey(
LogicalKeyboardKey.keyZ,
isMetaPressed: true,
);
} else {
await editor.pressLogicKey(
LogicalKeyboardKey.keyZ,
isControlPressed: true,
);
}

allUnderline = textNode.allSatisfyUnderlineInSelection(
Selection.single(path: [0], startOffset: 1, endOffset: text.length));
expect(allUnderline, false);

//redo should make text bold.
if (Platform.isMacOS) {
await editor.pressLogicKey(
LogicalKeyboardKey.keyZ,
isMetaPressed: true,
isShiftPressed: true,
);
} else {
await editor.pressLogicKey(
LogicalKeyboardKey.keyZ,
isControlPressed: true,
isShiftPressed: true,
);
}

allUnderline = textNode.allSatisfyUnderlineInSelection(
Selection.single(path: [0], startOffset: 1, endOffset: text.length));
expect(allUnderline, true);
}

Future<void> _testBackspaceUndoRedo(
WidgetTester tester, bool isDownwardSelection) async {
const text = 'Welcome to Appflowy 😁';
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