flutter_image_picker/test/image_picker_ui_test.dart

// SPDX-FileCopyrightText: 2022 Iconica
//
// SPDX-License-Identifier: BSD-3-Clause

import "dart:typed_data";

import "package:flutter/material.dart";
import "package:flutter_image_picker/flutter_image_picker.dart"
    as iconica_image_picker;
import "package:flutter_test/flutter_test.dart";
import "package:image_picker/image_picker.dart" as image_picker;
import "package:mocktail/mocktail.dart";

import "mocks/image_picker_service_mock.dart";

void main() {
  var cameraImage = Uint8List(10);
  var galleryImage = Uint8List(44);

  testWidgets("Image Picker Shows With Normal Theme", (tester) async {
    await tester.pumpWidget(
      const MaterialApp(
        home: Material(
          child: iconica_image_picker.ImagePicker(),
        ),
      ),
    );

    var makePhotoIconFinder = find.byIcon(Icons.camera_alt_rounded);
    var makePhotoTextFinder =
        find.text(const iconica_image_picker.ImagePickerTheme().makePhotoText);
    var selectImageIconFinder = find.byIcon(Icons.image);
    var selectImageTextFinder = find
        .text(const iconica_image_picker.ImagePickerTheme().selectImageText);
    var closebuttonTextFinder = find.text("Close");

    expect(makePhotoIconFinder, findsOneWidget);
    expect(makePhotoTextFinder, findsOneWidget);
    expect(selectImageIconFinder, findsOneWidget);
    expect(selectImageTextFinder, findsOneWidget);
    expect(closebuttonTextFinder, findsOneWidget);
  });

  testWidgets(
      "Image Picker Calls Function Correctly When ImageSource Is Gallery",
      (tester) async {
    var serviceMock = ImagePickerServiceMock();

    when(() => serviceMock.pickImage(image_picker.ImageSource.gallery))
        .thenAnswer((_) => Future.value(galleryImage));

    await tester.pumpWidget(
      MaterialApp(
        home: Material(
          child: iconica_image_picker.ImagePicker(
            service: serviceMock,
          ),
        ),
      ),
    );

    var finder = find.byKey(
      Key(const iconica_image_picker.ImagePickerTheme().selectImageText),
    );

    await tester.tap(finder);

    verify(() => serviceMock.pickImage(image_picker.ImageSource.gallery))
        .called(1);
  });

  testWidgets(
      "Image Picker Calls Function Correctly When ImageSource Is Camera",
      (tester) async {
    var serviceMock = ImagePickerServiceMock();

    when(() => serviceMock.pickImage(image_picker.ImageSource.camera))
        .thenAnswer((_) => Future.value(cameraImage));

    await tester.pumpWidget(
      MaterialApp(
        home: Material(
          child: iconica_image_picker.ImagePicker(
            service: serviceMock,
          ),
        ),
      ),
    );

    var finder = find.byKey(
      Key(const iconica_image_picker.ImagePickerTheme().makePhotoText),
    );

    await tester.tap(finder);

    verify(() => serviceMock.pickImage(image_picker.ImageSource.camera))
        .called(1);
  });

  testWidgets("Image Picker Shows With Custom Theme", (tester) async {
    Widget makePhotoIcon = Container(
      height: 125,
      width: 125,
      color: Colors.red,
    );
    var makePhotoText = "taaaake image";
    Widget selectImageIcon = Container(
      height: 125,
      width: 125,
      color: Colors.blue,
    );
    var selectImageText = "seleeeeect image";
    var closeButtonText = "Close";

    await tester.pumpWidget(
      MaterialApp(
        home: Material(
          child: iconica_image_picker.ImagePicker(
            theme: iconica_image_picker.ImagePickerTheme(
              makePhotoIcon: makePhotoIcon,
              makePhotoText: makePhotoText,
              selectImageIcon: selectImageIcon,
              selectImageText: selectImageText,
            ),
          ),
        ),
      ),
    );

    var makePhotoIconFinder = find.byWidget(makePhotoIcon);
    var makePhotoTextFinder = find.text(makePhotoText);
    var selectImageIconFinder = find.byWidget(selectImageIcon);
    var selectImageTextFinder = find.text(selectImageText);
    var closebuttonTextFinder = find.text(closeButtonText);

    expect(makePhotoIconFinder, findsOneWidget);
    expect(makePhotoTextFinder, findsOneWidget);
    expect(selectImageIconFinder, findsOneWidget);
    expect(selectImageTextFinder, findsOneWidget);
    expect(closebuttonTextFinder, findsOneWidget);
  });
}