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我正在寫一個連接到藍牙低功耗設備的簡單應用程序。連接到設備的代碼位於HandlerThread上,因此,爲了使處理程序線程在單元測試中工作,我使用了robolectric。如何用自定義類覆蓋Robolectric標準陰影類?
在使用robolectric之後,處理程序線程完美工作,但還有另一個問題。
Robolectric不允許我模擬BluetoothDevice類,因爲robolectric類ShadowBluetoothDevice類不包含方法 connectGatt(...)。因此,在運行時出現錯誤:
java.lang.NoSuchMethodError: android.bluetooth.BluetoothDevice.connectGatt(Landroid/content/Context;ZLandroid/bluetooth/BluetoothGattCallback;)Landroid/bluetooth/BluetoothGatt;
at com.example.BLEGattTest.setup(BLEGattTest.java:45)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50)
at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47)
at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:24)
at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:27)
at org.robolectric.RobolectricTestRunner$2.evaluate(RobolectricTestRunner.java:250)
at org.robolectric.RobolectricTestRunner.runChild(RobolectricTestRunner.java:176)
at org.robolectric.RobolectricTestRunner.runChild(RobolectricTestRunner.java:49)
at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)
at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71)
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)
at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58)
at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268)
at org.robolectric.RobolectricTestRunner$1.evaluate(RobolectricTestRunner.java:142)
at org.junit.runners.ParentRunner.run(ParentRunner.java:363)
at org.junit.runner.JUnitCore.run(JUnitCore.java:137)
at com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:69)
at com.intellij.rt.execution.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:234)
at com.intellij.rt.execution.junit.JUnitStarter.main(JUnitStarter.java:74)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at com.intellij.rt.execution.application.AppMain.main(AppMain.java:144)
所以,我在想,如果我可以覆蓋ShadowBluetoothDevice,其實我可以使這項工作?
我的代碼:
@RunWith(RobolectricTestRunner.class)
@Config(manifest = Config.NONE)
public class BLEGattTest {
private BLEGattScanner scanner;
private Customer customer;
private BluetoothDevice device;
@Before
public void setup(){
customer = new Customer();
customer.setDevice(device);
device = Mockito.mock(BluetoothDevice.class);
when(device.connectGatt(any(Context.class), anyBoolean(), any(BluetoothGattCallback.class))).thenReturn(null);
scanner = new BLEGattScanner(RuntimeEnvironment.application);
scanner.start();
}
@After
public void tearDown() throws InterruptedException {
if(scanner != null){
scanner.stopThread();
scanner.join(1000);
}
}
@Test
public void testMocks(){
Assert.assertEquals("asdf", device.getName());
}
}
您添加設備,之後,你嘲笑它。這不能工作 - 你需要嘲笑它,然後設置設備。在'customer.setDevice(device)''device'是未定義的。 – thst
謝謝!我嘗試了很多東西5小時我貼這個..和我錯過了一個簡單的事情..這是非常愚蠢的前...哈哈 反正!謝謝.... @thst –
我會將它添加爲答案然後如果你不介意:-) – thst