test(icon_generator): added tests for IconGenerator

test/abs/icon_generator_test.dart

@@ -0,0 +1,72 @@
+import 'package:flutter_launcher_icons/abs/icon_generator.dart';
+import 'package:flutter_launcher_icons/flutter_launcher_icons_config.dart';
+import 'package:flutter_launcher_icons/logger.dart';
+import 'package:mockito/annotations.dart';
+import 'package:mockito/mockito.dart';
+import 'package:path/path.dart' as path;
+import 'package:test/test.dart';
+import 'package:test_descriptor/test_descriptor.dart' as d;
+
+import 'icon_generator_test.mocks.dart';
+
+@GenerateMocks([FlutterLauncherIconsConfig, IconGenerator])
+void main() {
+  group('#generateIconsFor', () {
+    late String prefixPath;
+    late FLILogger logger;
+    late IconGenerator mockGenerator;
+    late FlutterLauncherIconsConfig mockFLIConfig;
+    setUp(() async {
+      prefixPath = path.join(d.sandbox, 'fli_test');
+      mockFLIConfig = MockFlutterLauncherIconsConfig();
+      logger = FLILogger(false);
+      mockGenerator = MockIconGenerator();
+      when(mockGenerator.platformName).thenReturn('Mock');
+      when(mockGenerator.context).thenReturn(IconGeneratorContext(
+        config: mockFLIConfig,
+        prefixPath: prefixPath,
+        logger: logger,
+      ));
+    });
+    test('should execute createIcons() when validateRequiremnts() returns true', () {
+      when(mockGenerator.validateRequirments()).thenReturn(true);
+      generateIconsFor(
+        config: mockFLIConfig,
+        flavor: null,
+        prefixPath: prefixPath,
+        logger: logger,
+        platforms: (context) => [mockGenerator],
+      );
+      verify(mockGenerator.validateRequirments()).called(equals(1));
+      verify(mockGenerator.createIcons()).called(equals(1));
+    });
+
+    test('should not execute createIcons() when validateRequiremnts() returns false', () {
+      when(mockGenerator.validateRequirments()).thenReturn(false);
+      generateIconsFor(
+        config: mockFLIConfig,
+        flavor: null,
+        prefixPath: prefixPath,
+        logger: logger,
+        platforms: (context) => [mockGenerator],
+      );
+      verify(mockGenerator.validateRequirments()).called(equals(1));
+      verifyNever(mockGenerator.createIcons());
+    });
+
+    test('should skip platform if any exception occured', () {
+      when(mockGenerator.validateRequirments()).thenReturn(true);
+      when(mockGenerator.createIcons()).thenThrow(Exception('should-skip-platform'));
+      generateIconsFor(
+        config: mockFLIConfig,
+        flavor: null,
+        prefixPath: prefixPath,
+        logger: logger,
+        platforms: (context) => [mockGenerator],
+      );
+      verify(mockGenerator.validateRequirments()).called(equals(1));
+      verify(mockGenerator.createIcons()).called(equals(1));
+      expect(() => mockGenerator.createIcons(), throwsException);
+    });
+  });
+}

test/abs/icon_generator_test.mocks.dart

@@ -0,0 +1,61 @@
+// Mocks generated by Mockito 5.2.0 from annotations
+// in flutter_launcher_icons/test/abs/icon_generator_test.dart.
+// Do not manually edit this file.
+
+import 'package:flutter_launcher_icons/abs/icon_generator.dart' as _i2;
+import 'package:flutter_launcher_icons/flutter_launcher_icons_config.dart'
+    as _i3;
+import 'package:mockito/mockito.dart' as _i1;
+
+// ignore_for_file: type=lint
+// ignore_for_file: avoid_redundant_argument_values
+// ignore_for_file: avoid_setters_without_getters
+// ignore_for_file: comment_references
+// ignore_for_file: implementation_imports
+// ignore_for_file: invalid_use_of_visible_for_testing_member
+// ignore_for_file: prefer_const_constructors
+// ignore_for_file: unnecessary_parenthesis
+// ignore_for_file: camel_case_types
+
+class _FakeIconGeneratorContext_0 extends _i1.Fake
+    implements _i2.IconGeneratorContext {}
+
+/// A class which mocks [FlutterLauncherIconsConfig].
+///
+/// See the documentation for Mockito's code generation for more information.
+class MockFlutterLauncherIconsConfig extends _i1.Mock
+    implements _i3.FlutterLauncherIconsConfig {
+  MockFlutterLauncherIconsConfig() {
+    _i1.throwOnMissingStub(this);
+  }
+
+  @override
+  Map<String, dynamic> toJson() =>
+      (super.noSuchMethod(Invocation.method(#toJson, []),
+          returnValue: <String, dynamic>{}) as Map<String, dynamic>);
+}
+
+/// A class which mocks [IconGenerator].
+///
+/// See the documentation for Mockito's code generation for more information.
+class MockIconGenerator extends _i1.Mock implements _i2.IconGenerator {
+  MockIconGenerator() {
+    _i1.throwOnMissingStub(this);
+  }
+
+  @override
+  _i2.IconGeneratorContext get context => (super.noSuchMethod(
+      Invocation.getter(#context),
+      returnValue: _FakeIconGeneratorContext_0()) as _i2.IconGeneratorContext);
+  @override
+  String get platformName =>
+      (super.noSuchMethod(Invocation.getter(#platformName), returnValue: '')
+          as String);
+  @override
+  void createIcons() => super.noSuchMethod(Invocation.method(#createIcons, []),
+      returnValueForMissingStub: null);
+  @override
+  bool validateRequirments() =>
+      (super.noSuchMethod(Invocation.method(#validateRequirments, []),
+          returnValue: false) as bool);
+}