chapter 07: initial code to create a test api for the application, the name of the first strategy is abstract test infrastructure class pattern

Author: devcorpio

chapter_07-test-hierarchies-and-organization/abstractTestInfrastructureClassPattern/configurationManager.js

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+const loggingFacility = require('./loggingFacility');
+
+function configurationManager() {
+    /**
+     * @param {string} configName
+     */
+    function isConfigured(configName) {
+        loggingFacility.log(`checking ${configName}`);
+    }
+
+    return {
+        isConfigured,
+    };
+}
+
+module.exports = configurationManager;

chapter_07-test-hierarchies-and-organization/abstractTestInfrastructureClassPattern/configurationManager.test.js

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+const configurationManagerFactory = require('./configurationManager');
+const loggingFacility = require('./loggingFacility');
+
+describe('isConfigured', () => {
+    it('logging file check', () => {
+        const configurationManager = configurationManagerFactory();
+        configurationManager.isConfigured('');
+    });
+
+    afterEach(() => {
+        loggingFacility.setLogger(null);
+    });
+});

chapter_07-test-hierarchies-and-organization/abstractTestInfrastructureClassPattern/logAnalyzer.js

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+const loggingFacility = require('./loggingFacility');
+
+function logAnalyzer() {
+    /**
+     * @param {string} fileName
+     */
+    function analyze(fileName) {
+        if (fileName.length < 8) {
+            loggingFacility.log(`Filename too short: ${fileName}`);
+        }
+    }
+
+    return {
+        analyze,
+    };
+}
+
+module.exports = logAnalyzer;

chapter_07-test-hierarchies-and-organization/abstractTestInfrastructureClassPattern/logAnalyzer.test.js

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+const logAnalyzerFactory = require('./logAnalyzer');
+const loggingFacility = require('./loggingFacility');
+
+describe('analyze', () => {
+    it('empty file throws exception', () => {
+        const logAnalyzer = logAnalyzerFactory();
+        logAnalyzer.analyze('');
+    });
+
+    afterEach(() => {
+        loggingFacility.setLogger(null);
+    });
+});

chapter_07-test-hierarchies-and-organization/abstractTestInfrastructureClassPattern/loggingFacility.js

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+let logger = console.log;
+
+function log(text) {
+    logger(text);
+}
+
+function getLogger() {
+    return logger;
+}
+
+function setLogger(value) {
+    logger = value;
+}
+
+module.exports = {
+    log,
+    getLogger,
+    setLogger,
+};