[sensors] Improve the generic sensors current layout tests.

third_party/WebKit/LayoutTests/sensor/resources/generic-sensor-tests.js

Index: third_party/WebKit/LayoutTests/sensor/resources/generic-sensor-tests.js
diff --git a/third_party/WebKit/LayoutTests/sensor/resources/generic-sensor-tests.js b/third_party/WebKit/LayoutTests/sensor/resources/generic-sensor-tests.js
new file mode 100644
index 0000000000000000000000000000000000000000..c991f7f0109fb7d1f5c6b1ac9138b927723c1bcd
--- /dev/null
+++ b/third_party/WebKit/LayoutTests/sensor/resources/generic-sensor-tests.js
@@ -0,0 +1,270 @@
+'use strict';
+
+// Run a set of tests for a given |sensorType|. |updateReading| is
+// a called by the test to provide the mock values for sensor. |verifyReading|
+// is called so that the value read in JavaScript are the values expected (the ones
+// sent by |updateReading|).
+function runGenericSensorTests(sensorType, updateReading, verifyReading) {
+  test(() => assert_throws(
+    new RangeError(),
+    () => new sensorType({frequency: -60})),
+    'Test that negative frequency causes exception from constructor.');
+
+  sensor_test(sensor => {
+    sensor.mockSensorProvider.setGetSensorShouldFail(true);
+    let sensorObject = new sensorType;
+    sensorObject.start();
+    return new Promise((resolve, reject) => {
+      let wrapper = new CallbackWrapper(event => {
+        assert_equals(sensorObject.state, 'errored');
+        console.log(event.error.message);
+        assert_equals(event.error.name, 'NotFoundError');
+        sensorObject.onerror = null;
+        resolve();
+      }, reject);
+
+      sensorObject.onerror = wrapper.callback;
+    });
+  }, 'Test that "onerror" is send when sensor is not supported.');
+
+  sensor_test(sensor => {
+      let sensorObject = new sensorType({frequency: 560});
+      sensorObject.start();
+
+      let testPromise = sensor.mockSensorProvider.getCreatedSensor()
+        .then(mockSensor => {
+          mockSensor.setStartShouldFail(true);
+          return mockSensor.addConfigurationCalled(); })
+        .then(mockSensor => {
+          return new Promise((resolve, reject) => {
+            let wrapper = new CallbackWrapper(event => {
+              assert_equals(sensorObject.state, 'errored');
+              assert_equals(event.error.name, 'OperationError');
+              sensorObject.onerror = null;
+              resolve();
+            }, reject);
+
+            sensorObject.onerror = wrapper.callback;
+          });
+        });
+      return testPromise;
+  }, 'Test that "onerror" is send when start() call has failed.');
+
+  sensor_test(sensor => {
+      let sensorObject = new sensorType({frequency: 560});
+      sensorObject.start();
+
+      let testPromise = sensor.mockSensorProvider.getCreatedSensor()
+          .then(mockSensor => { return mockSensor.addConfigurationCalled(); })
+          .then(mockSensor => {
+            return new Promise((resolve, reject) => {
+              let wrapper = new CallbackWrapper(() => {
+              let configuration = mockSensor.active_sensor_configurations_[0];

[Reilly Grant (use Gerrit), 2016/11/14 18:36:11]

nit: Indentation issue.

+              assert_equals(configuration.frequency, 60);
+              sensorObject.stop();
+              assert_equals(sensorObject.state, 'idle');
+              resolve(mockSensor);
+              }, reject);
+              sensorObject.onactivate = wrapper.callback;
+              sensorObject.onerror = reject;
+            });
+          })
+          .then(mockSensor => { return mockSensor.removeConfigurationCalled(); });
+      return testPromise;
+  }, 'Test that frequency is capped to 60.0 Hz.');
+
+  sensor_test(sensor => {
+    let maxSupportedFrequency = 15;
+    sensor.mockSensorProvider.setMaximumSupportedFrequency(maxSupportedFrequency);
+    let sensorObject = new sensorType({frequency: 50});
+    sensorObject.start();
+    let testPromise = sensor.mockSensorProvider.getCreatedSensor()
+        .then(mockSensor => { return mockSensor.addConfigurationCalled(); })
+        .then(mockSensor => {
+          return new Promise((resolve, reject) => {
+            let wrapper = new CallbackWrapper(() => {
+              let configuration = mockSensor.active_sensor_configurations_[0];
+              assert_equals(configuration.frequency, maxSupportedFrequency);
+              sensorObject.stop();
+              assert_equals(sensorObject.state, 'idle');
+              resolve(mockSensor);
+           }, reject);
+           sensorObject.onactivate = wrapper.callback;
+           sensorObject.onerror = reject;
+          });
+        })
+        .then(mockSensor => { return mockSensor.removeConfigurationCalled(); });
+    return testPromise;
+  }, 'Test that frequency is capped to the maximum supported from frequency.');
+
+  sensor_test(sensor => {
+  let sensorObject = new sensorType({frequency: 60});
+  sensorObject.start();
+  let testPromise = sensor.mockSensorProvider.getCreatedSensor()
+      .then((mockSensor) => {
+        return new Promise((resolve, reject) => {
+          let wrapper = new CallbackWrapper(() => {
+            assert_equals(sensorObject.state, 'active');
+            sensorObject.stop();
+            assert_equals(sensorObject.state, 'idle');
+            resolve(mockSensor);
+          }, reject);
+          sensorObject.onactivate = wrapper.callback;
+          sensorObject.onerror = reject;
+        });
+      })
+      .then(mockSensor => { return mockSensor.removeConfigurationCalled(); });
+  return testPromise;
+  }, 'Test that sensor can be successfully created if sensor is supported.');
+
+  sensor_test(sensor => {
+    let sensorObject = new sensorType();
+    sensorObject.start();
+    let testPromise = sensor.mockSensorProvider.getCreatedSensor()
+        .then((mockSensor) => {
+          return new Promise((resolve, reject) => {
+            let wrapper = new CallbackWrapper(() => {
+              assert_equals(sensorObject.state, 'active');
+              sensorObject.stop();
+              assert_equals(sensorObject.state, 'idle');
+              resolve(mockSensor);
+            }, reject);
+
+            sensorObject.onactivate = wrapper.callback;
+            sensorObject.onerror = reject;
+          });
+        })
+        .then(mockSensor => { return mockSensor.removeConfigurationCalled(); });
+    return testPromise;
+  }, 'Test that sensor can be constructed with default configuration.');
+
+  sensor_test(sensor => {
+    let sensorObject = new sensorType({frequency: 60});
+    sensorObject.start();
+
+    let testPromise = sensor.mockSensorProvider.getCreatedSensor()
+        .then(mockSensor => { return mockSensor.addConfigurationCalled(); })
+        .then(mockSensor => {
+          return new Promise((resolve, reject) => {
+            let wrapper = new CallbackWrapper(() => {
+              assert_equals(sensorObject.state, 'active');
+              sensorObject.stop();
+              assert_equals(sensorObject.state, 'idle');
+              resolve(mockSensor);
+           }, reject);
+           sensorObject.onactivate = wrapper.callback;
+           sensorObject.onerror = reject;
+          });
+        })
+        .then(mockSensor => { return mockSensor.removeConfigurationCalled(); });
+
+    return testPromise;
+  }, 'Test that addConfiguration and removeConfiguration is called.');
+
+  sensor_test(sensor => {
+  let sensorObject = new sensorType({frequency: 60});
+  sensorObject.start();
+  let testPromise = sensor.mockSensorProvider.getCreatedSensor()
+      .then(mockSensor => {
+        return mockSensor.setUpdateSensorReadingFunction(updateReading);
+      })
+      .then((mockSensor) => {
+        return new Promise((resolve, reject) => {
+          let wrapper = new CallbackWrapper(() => {
+            assert_true(verifyReading(sensorObject.reading));
+            sensorObject.stop();
+            assert_equals(sensorObject.reading, null);
+            resolve(mockSensor);
+          }, reject);
+
+          sensorObject.onchange = wrapper.callback;
+          sensorObject.onerror = reject;
+        });
+      })
+      .then(mockSensor => { return mockSensor.removeConfigurationCalled(); });
+
+  return testPromise;
+  }, 'Test that onChange is called and sensor reading is valid.');
+
+  sensor_test(sensor => {
+    let sensorObject = new sensorType;
+    sensorObject.start();
+    let testPromise = sensor.mockSensorProvider.getCreatedSensor()
+        .then(mockSensor => {
+          return mockSensor.setUpdateSensorReadingFunction(updateReading);
+        })
+        .then((mockSensor) => {

[Reilly Grant (use Gerrit), 2016/11/14 18:36:11]

nit: Parenthesis not necessary around mockSensor here and below.

+          return new Promise((resolve, reject) => {
+            sensorObject.onchange = () => {
+              if (verifyReading(sensorObject.reading)) {
+                resolve(mockSensor);
+              }
+            }
+          sensorObject.onerror = reject;
+          });
+        })
+        .then((mockSensor) => {
+          testRunner.setPageVisibility("hidden");

[Reilly Grant (use Gerrit), 2016/11/14 18:36:11]

nit: 'hidden'

+          return mockSensor.suspendCalled();
+        })
+        .then((mockSensor) => {
+          testRunner.setPageVisibility("visible");

[Reilly Grant (use Gerrit), 2016/11/14 18:36:11]

nit: 'visible'

+          return mockSensor.resumeCalled();
+        })
+        .then((mockSensor) => {
+          return new Promise((resolve, reject) => {
+            sensorObject.stop();
+            resolve(mockSensor);
+            sensorObject.onerror = reject;
+          });
+        })
+        .then(mockSensor => { return mockSensor.removeConfigurationCalled(); });
+
+    return testPromise;
+  }, 'Test that sensor receives suspend / resume notifications when page'
+      + ' visibility changes.');
+
+sensor_test(sensor => {
+  let sensor1 = new sensorType({frequency: 60});
+  sensor1.start();
+
+  let sensor2 = new sensorType({frequency: 20});
+  sensor2.start();
+  let testPromise = sensor.mockSensorProvider.getCreatedSensor()
+      .then(mockSensor => {
+        return mockSensor.setUpdateSensorReadingFunction(update_sensor_reading);
+      })
+      .then((mockSensor) => {
+        return new Promise((resolve, reject) => {
+          let wrapper = new CallbackWrapper(() => {
+            // Reading value is correct.
+            assert_true(verifyReading(sensor1.reading));
+
+            // Both sensors share the same reading instance.
+            let reading = sensor1.reading;
+            assert_equals(reading, sensor2.reading);
+
+            // After first sensor stops its reading is null, reading for second
+            // sensor sensor remains.
+            sensor1.stop();
+            assert_equals(sensor1.reading, null);
+            assert_true(verifyReading(sensor2.reading));
+
+            sensor2.stop();
+            assert_equals(sensor2.reading, null);
+
+            // Cached reading remains.
+            assert_true(verifyReading(reading));
+            resolve(mockSensor);
+          }, reject);
+
+          sensor1.onchange = wrapper.callback;
+          sensor1.onerror = reject;
+          sensor2.onerror = reject;
+        });
+      })
+      .then(mockSensor => { return mockSensor.removeConfigurationCalled(); });
+
+  return testPromise;
+}, 'Test that sensor reading is correct.');
+}