我正在使用浓缩咖啡进行测试，但有时我会尝试从外部存储获取图像，并且使用Marshmallow我需要运行时权限，否则会出现异常崩溃并且测试将失败。
androidTestCompile 'com.android.support.test:runner:0.4'
androidTestCompile 'com.android.support.test:rules:0.4'
androidTestCompile 'com.android.support.test.espresso:espresso-core:2.2.1'
androidTestCompile 'com.android.support.test.espresso:espresso-intents:2.2.1'
androidTestCompile('com.android.support.test.espresso:espresso-contrib:2.2.1') {
// this library uses the newest app compat v22 but the espresso contrib still v21.
// you have to specifically exclude the older versions of the contrib library or
// there will be some conflicts
exclude group: 'com.android.support', module: 'appcompat'
exclude group: 'com.android.support', module: 'support-v4'
exclude module: 'recyclerview-v7'
}
androidTestCompile 'junit:junit:4.12'
androidTestCompile 'com.squareup.retrofit:retrofit-mock:1.9.0'
androidTestCompile 'com.squareup.assertj:assertj-android:1.1.0'
androidTestCompile 'com.squareup.spoon:spoon-client:1.2.0'
我怎样才能正确管理它？
我应该为运行时权限编写测试还是有办法禁用它进行测试？
我应该像她在这里所说的那样在测试运行之前授予权限吗？https://www.youtube.com/watch?list=PLWz5rJ2EKKc-lJo_RGGXL2Psr8vVCTWjM
更新！现在，您可以使用 Android 测试支持库中的规则
它比自定义规则更合适。
过时的答案：
您可以添加测试规则以重用代码并增加更多灵活性：
/**
* This rule adds selected permissions to test app
*/
public class PermissionsRule implements TestRule {
private final String[] permissions;
public PermissionsRule(String[] permissions) {
this.permissions = permissions;
}
@Override
public Statement apply(final Statement base, Description description) {
return new Statement() {
@Override
public void evaluate() throws Throwable {
allowPermissions();
base.evaluate();
revokePermissions();
}
};
}
private void allowPermissions() {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
for (String permission : permissions) {
InstrumentationRegistry.getInstrumentation().getUiAutomation().executeShellCommand(
"pm grant " + InstrumentationRegistry.getTargetContext().getPackageName()
+ " " + permission);
}
}
}
private void revokePermissions() {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
for (String permission : permissions) {
InstrumentationRegistry.getInstrumentation().getUiAutomation().executeShellCommand(
"pm revoke " + InstrumentationRegistry.getTargetContext().getPackageName()
+ " " + permission);
}
}
}
}
之后，您可以在测试类中使用此规则：
@Rule
public final PermissionsRule permissionsRule = new PermissionsRule(
new String[]{Manifest.permission.READ_CONTACTS, Manifest.permission.WRITE_CONTACTS});
请记住：
您可以使用以下方法授予和撤消权限：
adb shell pm grant com.package.myapp android.permission.<PERMISSION>
adb shell pm revoke com.package.myapp android.permission.<PERMISSION>
若要从 Java 进行检测测试，请从 Google 示例中调用此方法：https://github.com/googlesamples/android-testing/blob/ed62c450e43f859333b3113d44dd59f75971b529/ui/espresso/IntentsBasicSample/app/src/androidTest/java/com/example/android/testing/espresso/BasicSample/DialerActivityTest.java#L94
您可以使用 GrantPermissionRule。此规则将为该测试类中的所有测试方法授予所有请求的运行时权限。
@Rule
public GrantPermissionRule mRuntimePermissionRule
= GrantPermissionRule.grant(Manifest.permission.READ_PHONE_STATE);
