chapter 05: creating a test that use a fake handwritten

Author: devcorpio

chapter_05-isolation-frameworks/logAnalyzer.test.js

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+const logAnalyzerFactory = require('./logAnalyzer');
+
+const fakeWebServiceFactory = require('./fakes/fakeWebService');
+
+let myFakeExtensionManager;
+
+describe('analyze', () => {
+    let fakeWebService;
+    beforeEach(() => {
+        fakeWebService = fakeWebServiceFactory();
+    });
+
+    it('too short file calls webService', () => {
+        const logAnalyzer = logAnalyzerFactory(
+            myFakeExtensionManager,
+            fakeWebService
+        );
+
+        const fileName = 'johndoe';
+        const expectedMessage = `Filename too short: ${fileName}`;
+
+        logAnalyzer.analyze(fileName);
+        expect(fakeWebService.getLastError()).toBe(expectedMessage);
+    });
+});