diff --git a/test/stock_response_extension_test.dart b/test/stock_response_extension_test.dart
index aa9e60f..5294835 100644
--- a/test/stock_response_extension_test.dart
+++ b/test/stock_response_extension_test.dart
@@ -1,4 +1,5 @@
 import 'package:stock/src/errors.dart';
+import 'package:stock/src/extensions/stock_response_internal_extensions.dart';
 import 'package:stock/src/stock_response.dart';
 import 'package:stock/src/stock_response_extensions.dart';
 import 'package:test/test.dart';
@@ -29,6 +30,21 @@ void main() {
       );
     });
   });
+  group('throwIfError extension', () {
+    test('throwIfError of an error throws the exception', () async {
+      final customEx = Exception("Custom ex");
+      expect(
+        StockResponse.error(ResponseOrigin.fetcher, customEx).throwIfError,
+        throwsA((e) => e == customEx),
+      );
+    });
+    test('throwIfError of a loading response does not do anything', () async {
+      const StockResponse.loading(ResponseOrigin.fetcher).throwIfError();
+    });
+    test('throwIfError of a data returns the data', () async {
+      const StockResponse.data(ResponseOrigin.fetcher, 1).throwIfError();
+    });
+  });
   group('Get data extensions', () {
     test('getData of an error returns null', () async {
       final customEx = Exception("Custom ex");
@@ -65,6 +81,20 @@ void main() {
         equals(true),
       );
     });
+    test('Data returns true if it is a data event', () async {
+      expect(
+        StockResponse.error(ResponseOrigin.fetcher, Error()).isData,
+        equals(false),
+      );
+      expect(
+        const StockResponse.data(ResponseOrigin.fetcher, 1).isData,
+        equals(true),
+      );
+      expect(
+        const StockResponse.loading(ResponseOrigin.fetcher).isData,
+        equals(false),
+      );
+    });
     test('Error returns true if the response is an error', () async {
       expect(
         StockResponse.error(ResponseOrigin.fetcher, Error()).isError,
@@ -80,4 +110,35 @@ void main() {
       );
     });
   });
+
+  group('Unknown type', () {
+    test("Require data throws error if the type is not recognized", () async {
+      expect(
+        _FakeType().requireData,
+        throwsA(
+          (e) =>
+              e is StockError &&
+              e.toString() ==
+                  'StockError: Type error requireData expect either Success, Error but was given _FakeType',
+        ),
+      );
+    });
+
+    test("Swap type throws error if the type is not recognized", () async {
+      expect(
+        _FakeType().swapType,
+        throwsA(
+          (e) =>
+              e is StockError &&
+              e.toString() ==
+                  'StockError: Type error swapType expect either Success, Error or Loading but was given _FakeType',
+        ),
+      );
+    });
+  });
+}
+
+class _FakeType implements StockResponse<int> {
+  @override
+  ResponseOrigin get origin => ResponseOrigin.fetcher;
 }
diff --git a/test/stock_response_test.dart b/test/stock_response_test.dart
new file mode 100644
index 0000000..59aad71
--- /dev/null
+++ b/test/stock_response_test.dart
@@ -0,0 +1,88 @@
+import 'package:stock/src/stock_response.dart';
+import 'package:test/test.dart';
+
+void main() {
+  group('StockResponseLoading', () {
+    test('toString()', () async {
+      expect(
+        const StockResponseLoading(ResponseOrigin.fetcher).toString(),
+        equals(
+          'StockResponse<dynamic>.loading(origin: ResponseOrigin.fetcher)',
+        ),
+      );
+    });
+    test('equal', () async {
+      final fetcher1 = const StockResponseLoading(ResponseOrigin.fetcher);
+      final fetcher2 = const StockResponseLoading(ResponseOrigin.fetcher);
+      final sot1 = const StockResponseLoading(
+        ResponseOrigin.sourceOfTruth,
+      );
+      expect(fetcher1 == sot1, equals(false));
+      expect(fetcher1 == fetcher2, equals(true));
+    });
+    test('hashcode', () async {
+      final fetcher1 = const StockResponseLoading(ResponseOrigin.fetcher);
+      final fetcher2 = const StockResponseLoading(ResponseOrigin.fetcher);
+      final sot1 = const StockResponseLoading(ResponseOrigin.sourceOfTruth);
+      expect(fetcher1.hashCode == sot1.hashCode, equals(false));
+      expect(fetcher1.hashCode == fetcher2.hashCode, equals(true));
+    });
+    group('StockResponseData', () {
+      test('toString()', () async {
+        expect(
+          const StockResponseData(ResponseOrigin.fetcher, '1').toString(),
+          equals(
+            'StockResponse<String>.data(origin: ResponseOrigin.fetcher, value: 1)',
+          ),
+        );
+      });
+      test('equal', () async {
+        final fetcher1 = const StockResponseData(ResponseOrigin.fetcher, 1);
+        final fetcher1Copy = const StockResponseData(ResponseOrigin.fetcher, 1);
+        final fetcher2 = const StockResponseData(ResponseOrigin.fetcher, 2);
+        final sot1 = const StockResponseData(ResponseOrigin.sourceOfTruth, 1);
+        expect(fetcher1 == sot1, equals(false));
+        expect(fetcher1 == fetcher1Copy, equals(true));
+        expect(fetcher1 == fetcher2, equals(false));
+      });
+      test('hashcode', () async {
+        final fetcher1 = const StockResponseData(ResponseOrigin.fetcher, 1);
+        final fetcher1Copy = const StockResponseData(ResponseOrigin.fetcher, 1);
+        final fetcher2 = const StockResponseData(ResponseOrigin.fetcher, 2);
+        final sot1 = const StockResponseData(ResponseOrigin.sourceOfTruth, 1);
+        expect(fetcher1.hashCode == sot1.hashCode, equals(false));
+        expect(fetcher1.hashCode == fetcher1Copy.hashCode, equals(true));
+        expect(fetcher1.hashCode == fetcher2.hashCode, equals(false));
+      });
+    });
+    group('StockResponseError', () {
+      test('toString()', () async {
+        expect(
+          const StockResponseError<String>(ResponseOrigin.fetcher, 'error')
+              .toString(),
+          equals(
+            'StockResponse<String>.error(origin: ResponseOrigin.fetcher, error: error, stackTrace: null)',
+          ),
+        );
+      });
+      test('equal', () async {
+        final fetcher1 = const StockResponseError(ResponseOrigin.fetcher, 1);
+        final fetcher1Tmp = const StockResponseError(ResponseOrigin.fetcher, 1);
+        final fetcher2 = const StockResponseError(ResponseOrigin.fetcher, 2);
+        final sot1 = const StockResponseError(ResponseOrigin.sourceOfTruth, 1);
+        expect(fetcher1 == sot1, equals(false));
+        expect(fetcher1 == fetcher1Tmp, equals(true));
+        expect(fetcher1 == fetcher2, equals(false));
+      });
+      test('hashcode', () async {
+        final fetcher1 = const StockResponseError(ResponseOrigin.fetcher, 1);
+        final fetcher1Tmp = const StockResponseError(ResponseOrigin.fetcher, 1);
+        final fetcher2 = const StockResponseError(ResponseOrigin.fetcher, 2);
+        final sot1 = const StockResponseError(ResponseOrigin.sourceOfTruth, 1);
+        expect(fetcher1.hashCode == sot1.hashCode, equals(false));
+        expect(fetcher1.hashCode == fetcher1Tmp.hashCode, equals(true));
+        expect(fetcher1.hashCode == fetcher2.hashCode, equals(false));
+      });
+    });
+  });
+}