是否有注释或其他方便的方法来忽略特定 Android SDK 版本的 junit 测试?有没有类似于 Lint 注释 TargetApi(x) 的东西?还是我必须手动检查是否使用 Build.VERSION 运行测试?
5 回答
我不认为有什么准备好,但很容易为此创建一个自定义注释。
创建您的自定义注释
@Target( ElementType.METHOD )
@Retention( RetentionPolicy.RUNTIME)
public @interface TargetApi {
int value();
}
覆盖测试运行器(这将检查值并最终忽略/触发测试)
public class ConditionalTestRunner extends BlockJUnit4ClassRunner {
public ConditionalTestRunner(Class klass) throws InitializationError {
super(klass);
}
@Override
public void runChild(FrameworkMethod method, RunNotifier notifier) {
TargetApi condition = method.getAnnotation(TargetApi.class);
if(condition.value() > 10) {
notifier.fireTestIgnored(describeChild(method));
} else {
super.runChild(method, notifier);
}
}
}
并标记你的测试
@RunWith(ConditionalTestRunner.class)
public class TestClass {
@Test
@TargetApi(6)
public void testMethodThatRunsConditionally() {
System.out.print("Test me!");
}
}
刚刚测试,它对我有用。:)
归功于:有条件地忽略 JUnit 测试
另一种方法是使用 JUnit 的assume
功能:
@Test
fun shouldWorkOnNewerDevices() {
assumeTrue(
"Can only run on API Level 23 or newer because of reasons",
Build.VERSION.SDK_INT >= 23
)
}
如果应用,这有效地将测试方法标记为已跳过。
这不像注释解决方案那么好,但您也不需要自定义 JUnit 测试运行器。
我一直在寻找这个问题的答案,但没有找到比检查版本更好的方法。TestCase
通过检查以下 Android方法,我能够有条件地抑制测试逻辑的执行。但是,这实际上并不能阻止单个测试的执行。像这样覆盖该runTest()
方法将导致测试“通过”您知道无法正常工作的 API 级别。根据您的测试逻辑,您可能也需要覆盖tearDown()
。也许有人会提供更好的解决方案。
@Override
protected void setUp() throws Exception {
if (Build.VERSION.SDK_INT < Build.VERSION_CODES.GINGERBREAD) {
if (Log.isLoggable(TAG, Log.INFO)) {
Log.i(TAG, "This feature is only supported on Android 2.3 and above");
}
} else {
super.setUp();
}
}
@Override
protected void runTest() throws Throwable {
if (Build.VERSION.SDK_INT < Build.VERSION_CODES.GINGERBREAD) {
assertTrue(true);
} else {
super.runTest();
}
}
我认为@mark.w 的答案是阻力最小的路径:
您可能想看看SdkSuppress注释。它有两种方法——maxSdkVersion 和 minSdkVersion,您可以根据需要使用它们。
例如:
@Test
@SdkSuppress(minSdkVersion = Build.VERSION_CODES.KITKAT)
public void testMethodThatRunsConditionally() {
System.out.print("Test me!");
}
我已经为 Kotlin 现代版本升级了@Enrichman 的答案。所以,这是测试运行器类:
class ConditionalSDKTestRunner(klass: Class<*>?) : BlockJUnit4ClassRunner(klass) {
override fun runChild(method: FrameworkMethod, notifier: RunNotifier) {
// Annotation class could not have a base class of interface, so we can not group them.
val testOnlyForTargetSDKCode = method.getAnnotation(TestOnlyForTargetSDK::class.java)?.sdkLevel?.code
val testForTargetSDKAndBelowCode = method.getAnnotation(TestForTargetSDKAndBelow::class.java)?.sdkLevel?.code
val testForTargetSDKAndAboveCode = method.getAnnotation(TestForTargetSDKAndAbove::class.java)?.sdkLevel?.code
when {
// If annotation exists, but target SDK is not equal of emulator SDK -> skip this test.
testOnlyForTargetSDKCode != null && testOnlyForTargetSDKCode != Build.VERSION.SDK_INT ->
notifier.fireTestIgnored(describeChild(method))
// If annotation exists, but test SDK is lower than emulator SDK -> skip this test.
testForTargetSDKAndBelowCode != null && testForTargetSDKAndBelowCode < Build.VERSION.SDK_INT ->
notifier.fireTestIgnored(describeChild(method))
// If annotation exists, but test SDK is higher than emulator SDK -> skip this test.
testForTargetSDKAndAboveCode != null && testForTargetSDKAndAboveCode > Build.VERSION.SDK_INT ->
notifier.fireTestIgnored(describeChild(method))
// For other cases test should be started.
else -> super.runChild(method, notifier)
}
}
}
枚举项目中现有的 SDK:
enum class SdkLevel(val code: Int) {
SDK_24(24),
SDK_25(25),
SDK_26(26),
SDK_27(27),
SDK_28(28),
SDK_29(29),
SDK_30(30),
SDK_31(31),
SDK_32(32)
}
和下面的注释:
@Target(AnnotationTarget.FUNCTION)
@Retention(AnnotationRetention.RUNTIME)
annotation class TestForTargetSDKAndAbove(val sdkLevel: SdkLevel)
@Target(AnnotationTarget.FUNCTION)
@Retention(AnnotationRetention.RUNTIME)
annotation class TestForTargetSDKAndBelow(val sdkLevel: SdkLevel)
@Target(AnnotationTarget.FUNCTION)
@Retention(AnnotationRetention.RUNTIME)
annotation class TestOnlyForTargetSDK(val sdkLevel: SdkLevel)
要使用它,只需添加ConditionalSDKTestRunner
到您的基本 android 单元测试类:
@RunWith(ConditionalSDKTestRunner::class)
abstract class BaseAndroidUnitTest
和必要的测试注释,使其仅适用于特殊的 sdk:
@Test
@TestForTargetSDKAndAbove(SdkLevel.SDK_31)
fun getConnectionInfo_positive_SDK31() {
@Test
@TestForTargetSDKAndBelow(SdkLevel.SDK_30)
fun getConnectionInfo_negative1_SDK30() {
@Test
@TestOnlyForTargetSDK(SdkLevel.SDK_29)
fun getConnectionInfo_negative1_SDK29() {
就这样。谢谢!