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PAINTROID-751: Write Integration tests for EraserTool #100

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PAINTROID-751: Write Integration tests for EraserTool #100

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170 changes: 170 additions & 0 deletions test/integration/eraser_tool_test.dart
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Original file line number Diff line number Diff line change
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import 'package:flutter/material.dart';
import 'package:flutter_riverpod/flutter_riverpod.dart';
import 'package:flutter_test/flutter_test.dart';
import 'package:integration_test/integration_test.dart';
import 'package:paintroid/app.dart';
import 'package:paintroid/core/tools/tool_data.dart';

import '../utils/test_utils.dart';

void main() {
IntegrationTestWidgetsFlutterBinding.ensureInitialized();

const String testIDStr = String.fromEnvironment('id', defaultValue: '-1');
final testID = int.tryParse(testIDStr) ?? testIDStr;

late Widget sut;

setUp(() async {
sut = ProviderScope(
child: App(
showOnboardingPage: false,
),
);
});

if (testID == -1 || testID == 0) {
testWidgets('[ERASER_TOOL]: erase one point ', (WidgetTester tester) async {
UIInteraction.initialize(tester);
await tester.pumpWidget(sut);
await UIInteraction.createNewImage();
UIInteraction.setColor(Colors.black);
await UIInteraction.selectTool(ToolData.BRUSH.name);

var color = await UIInteraction.getPixelColor(
CanvasPosition.centerX,
CanvasPosition.centerY,
);
expect(color, Colors.transparent);

await UIInteraction.tapAt(CanvasPosition.center);
color = await UIInteraction.getPixelColor(
CanvasPosition.centerX, CanvasPosition.centerY);
expect(color, Colors.black);

await UIInteraction.selectTool(ToolData.ERASER.name);
await UIInteraction.tapAt(CanvasPosition.center);

color = await UIInteraction.getPixelColor(
CanvasPosition.centerX, CanvasPosition.centerY);
expect(color, Colors.transparent);
});
}

if (testID == -1 || testID == 1) {
testWidgets('[ERASER_TOOL]: eraser erases multiple points',
(WidgetTester tester) async {
UIInteraction.initialize(tester);
await tester.pumpWidget(sut);
await UIInteraction.createNewImage();
UIInteraction.setColor(Colors.black);
await UIInteraction.selectTool(ToolData.BRUSH.name);

await UIInteraction.tapAt(CanvasPosition.center);
await UIInteraction.tapAt(CanvasPosition.topCenter);
await UIInteraction.tapAt(CanvasPosition.bottomCenter);

var color = await UIInteraction.getPixelColor(
CanvasPosition.centerX, CanvasPosition.centerY);
expect(color, Colors.black);
color = await UIInteraction.getPixelColor(
CanvasPosition.centerX, CanvasPosition.top);
expect(color, Colors.black);
color = await UIInteraction.getPixelColor(
CanvasPosition.centerX, CanvasPosition.bottom);
expect(color, Colors.black);

await UIInteraction.selectTool(ToolData.ERASER.name);
await UIInteraction.tapAt(CanvasPosition.center);

color = await UIInteraction.getPixelColor(
CanvasPosition.centerX, CanvasPosition.centerY);
expect(color, Colors.transparent);
color = await UIInteraction.getPixelColor(
CanvasPosition.centerX, CanvasPosition.top);
expect(color, Colors.black);
color = await UIInteraction.getPixelColor(
CanvasPosition.centerX, CanvasPosition.bottom);
expect(color, Colors.black);
});
}

if (testID == -1 || testID == 2) {
testWidgets('[ERASER_TOOL]: eraser undo and redo functionality',
(WidgetTester tester) async {
UIInteraction.initialize(tester);
await tester.pumpWidget(sut);
await UIInteraction.createNewImage();
UIInteraction.setColor(Colors.black);
await UIInteraction.selectTool(ToolData.BRUSH.name);

await UIInteraction.tapAt(CanvasPosition.center);
var color = await UIInteraction.getPixelColor(
CanvasPosition.centerX, CanvasPosition.centerY);
expect(color, Colors.black);

await UIInteraction.selectTool(ToolData.ERASER.name);
await UIInteraction.tapAt(CanvasPosition.center);
color = await UIInteraction.getPixelColor(
CanvasPosition.centerX, CanvasPosition.centerY);
expect(color, Colors.transparent);

await UIInteraction.clickUndo();
color = await UIInteraction.getPixelColor(
CanvasPosition.centerX, CanvasPosition.centerY);
expect(color, Colors.black);

await UIInteraction.clickRedo();
color = await UIInteraction.getPixelColor(
CanvasPosition.centerX, CanvasPosition.centerY);
expect(color, Colors.transparent);
});
}

if (testID == -1 || testID == 3) {
testWidgets('[ERASER_TOOL]: eraser does not affect empty canvas',
(WidgetTester tester) async {
UIInteraction.initialize(tester);
await tester.pumpWidget(sut);
await UIInteraction.createNewImage();
await UIInteraction.selectTool(ToolData.ERASER.name);

var color = await UIInteraction.getPixelColor(
CanvasPosition.centerX, CanvasPosition.centerY);
expect(color, Colors.transparent);

await UIInteraction.tapAt(CanvasPosition.center);
color = await UIInteraction.getPixelColor(
CanvasPosition.centerX, CanvasPosition.centerY);
expect(color, Colors.transparent);
});
}

if (testID == -1 || testID == 4) {
testWidgets('[ERASER_TOOL]: eraser erases with drag gesture',
(WidgetTester tester) async {
UIInteraction.initialize(tester);
await tester.pumpWidget(sut);
await UIInteraction.createNewImage();
UIInteraction.setColor(Colors.black);
await UIInteraction.selectTool(ToolData.BRUSH.name);

await UIInteraction.dragFromTo(
CanvasPosition.centerLeft, CanvasPosition.centerRight);
var color = await UIInteraction.getPixelColor(
CanvasPosition.centerX, CanvasPosition.centerY);
expect(color, Colors.black);

await UIInteraction.selectTool(ToolData.ERASER.name);

await UIInteraction.dragFromTo(
CanvasPosition.center, CanvasPosition.centerRight);
color = await UIInteraction.getPixelColor(
CanvasPosition.centerX, CanvasPosition.centerY);
expect(color, Colors.transparent);
color = await UIInteraction.getPixelColor(
CanvasPosition.halfwayLeft, CanvasPosition.centerY);
expect(color, Colors.black);
});
}
}