Adds integration test to verify behavior of timezone settings

TinaHeiligers · TinaHeiligers · commit a59ca2e46888 · 2021-02-05T12:12:31.000-07:00
diff --git a/src/core/server/logging/integration_tests/timezone.test.ts b/src/core/server/logging/integration_tests/timezone.test.ts
@@ -0,0 +1,103 @@
+/*
+ * Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
+ * or more contributor license agreements. Licensed under the Elastic License
+ * 2.0 and the Server Side Public License, v 1; you may not use this file except
+ * in compliance with, at your election, the Elastic License 2.0 or the Server
+ * Side Public License, v 1.
+ */
+
+import * as kbnTestServer from '../../../test_helpers/kbn_server';
+
+function createRoot() {
+  return kbnTestServer.createRoot({
+    logging: {
+      silent: true, // set "true" in kbnTestServer
+      timezone: 'GMT',
+      appenders: {
+        'test-timezone-SAJHB': {
+          kind: 'console',
+          layout: {
+            highlight: false,
+            kind: 'pattern',
+            pattern: '%date{ISO8601_TZ}{Africa/Johannesburg}',
+          },
+        },
+        'test-timezone-use-root': {
+          kind: 'console',
+          layout: {
+            highlight: false,
+            kind: 'pattern',
+            pattern: '%date',
+          },
+        },
+      },
+      loggers: [
+        {
+          context: 'datemodifiertimezone',
+          appenders: ['test-timezone-SAJHB'],
+          level: 'info',
+        },
+        {
+          context: 'mainloggingtimezone',
+          appenders: ['test-timezone-use-root'],
+          level: 'info',
+        },
+      ],
+    },
+  });
+}
+
+const nonGlobalRegex = new RegExp('^[0-9]+');
+
+describe('logging service', () => {
+  describe('logs date with timezone specified', () => {
+    let root: ReturnType<typeof createRoot>;
+    let mockConsoleLog: jest.SpyInstance;
+    beforeAll(async () => {
+      mockConsoleLog = jest.spyOn(global.console, 'log');
+      root = createRoot();
+
+      await root.setup();
+    }, 30000);
+
+    beforeEach(() => {
+      mockConsoleLog.mockClear();
+    });
+
+    afterAll(async () => {
+      mockConsoleLog.mockRestore();
+      await root.shutdown();
+    });
+
+    it('uses specified date modifier timezone', () => {
+      const logger = root.logger.get('datemodifiertimezone');
+
+      logger.info('info from "datemodifiertimezone" context');
+
+      expect(mockConsoleLog).toHaveBeenCalledTimes(1);
+      const dateTimezoneModifier = mockConsoleLog.mock.calls[0][0]
+        .split('.')[1]
+        .replace(nonGlobalRegex, 'x');
+      expect(dateTimezoneModifier.endsWith('+02:00')).toBe(true);
+    });
+
+    it('uses root logging date timezone', () => {
+      const logger = root.logger.get('mainloggingtimezone');
+
+      logger.info('info from "mainloggingtimezone" context');
+      const dateTimezoneModifier = mockConsoleLog.mock.calls[0][0]
+        .split('.')[1]
+        .replace(nonGlobalRegex, 'x');
+      expect(dateTimezoneModifier.endsWith('-05:00')).toBe(true);
+    });
+
+    it('falls back to the root settings', () => {
+      const logger = root.logger.get('fallback');
+
+      logger.info('info from "fallback" context');
+
+      // output muted by silent: true
+      expect(mockConsoleLog).toHaveBeenCalledTimes(0);
+    });
+  });
+});
