Bug 1129392 - Add tests for compatibility checker module

Author: crdlc

test/unit/test_compatibility_checker.js

@@ -0,0 +1,106 @@
+'use strict';
+
+require('unit/utils/mock_mozL10n.js');
+require('libs/lazy_loader.js');
+require('unit/utils/mock_mozL10n.js');
+
+suite('Tests CompatibilityChecker', function() {
+
+  var cookie;
+
+  function getConfiguration(devices, minimumMajorVersion) {
+    return {
+      device: {
+        names: devices
+      },
+      os: {
+        minimumMajorVersion: minimumMajorVersion
+      }
+    };
+  }
+
+  function restore(objects) {
+    objects = Array.isArray(objects) ? objects : [objects];
+    objects.forEach(object => object.restore());
+  }
+
+  suiteSetup(function(done) {
+    Object.defineProperty(navigator, 'userAgent', {
+      configurable: true,
+      get: () => 'Mozilla/5.0 (Mobile; rv:32.0) Gecko/32.0 Firefox/32.0'
+    });
+
+    Object.defineProperty(document, 'cookie', {
+      configurable: true,
+      get: () => cookie,
+      set: (value) => cookie = value
+    });
+
+    require('js/compatibility_checker.js', () => done());
+  });
+
+  setup(function() {
+    document.cookie = '';
+  });
+
+  test('CompatibilityChecker should exist', function() {
+    chai.assert.isObject(CompatibilityChecker);
+  });
+
+  test('Compatibility already confirmed', function(done) {
+    document.cookie = 'compatibility=confirmed';
+    CompatibilityChecker.check().then(done);
+  });
+
+  test('Compatible device and OS', function(done) {
+    sinon.stub(LazyLoader,
+           'getJSON', () => Promise.resolve(getConfiguration(['Mozilla'], 32)));
+
+    CompatibilityChecker.check().then(() => {
+      chai.assert.equal(document.cookie, 'compatibility=confirmed');
+      restore(LazyLoader.getJSON);
+      done();
+    });
+  });
+
+  test('Error getting JSON file', function(done) {
+    sinon.stub(LazyLoader, 'getJSON', () => Promise.reject());
+
+    CompatibilityChecker.check().then(() => {
+      restore(LazyLoader.getJSON);
+      done();
+    });
+  });
+
+  test('Device not compatible', function(done) {
+    sinon.stub(LazyLoader,
+      'getJSON', () => Promise.resolve(getConfiguration(['Rocio Jurado'], 32)));
+
+    sinon.stub(window, 'alert', message => {
+      chai.assert.equal(message, 'notCompatibleDevice');
+    });
+
+    sinon.stub(window, 'close', () => {
+      restore([LazyLoader.getJSON, window.alert, window.close]);
+      done();
+    });
+
+    CompatibilityChecker.check();
+  });
+
+  test('Old OS version', function(done) {
+    sinon.stub(LazyLoader,
+           'getJSON', () => Promise.resolve(getConfiguration(['Mozilla'], 34)));
+
+    sinon.stub(window, 'alert', message => {
+      chai.assert.equal(message, 'oldOSVersion');
+    });
+
+    sinon.stub(window, 'close', () => {
+      restore([LazyLoader.getJSON, window.alert, window.close]);
+      done();
+    });
+
+    CompatibilityChecker.check();
+  });
+});

test/unit/utils/mock_mozL10n.js

@@ -4,8 +4,10 @@
 
   var MockMozL10n = {
     get: function(key, values) {
-      return key + JSON.stringify(values);
-    }
+      return key + (values ? JSON.stringify(values) : '');
+    },
+
+    readyState: 'complete'
   }
 
   global.navigator.mozL10n = MockMozL10n;