在 Robolectric 测试中使用 Android KeyStore [英] Using the Android KeyStore in Robolectric tests

问题描述

我正在尝试编写一些针对 Android Keystore.但是，当我编写以下测试用例时:

I'm attempting to write a few testcases that work against the Android Keystore. However, when I write the following test case:

@RunWith(RobolectricGradleTestRunner.class)
@Config(constants = BuildConfig.class, sdk = 21)
public class FancyPantsUnitTest {
   @Test
   public void buildKey() {
        keyPairGenerator = KeyPairGenerator.getInstance("RSA", "AndroidKeyStore");
        keyPairGenerator.initialize(4096);
        final KeyPair keyPair = keyPairGenerator.generateKeyPair();
   }
}

此操作失败，但出现以下异常:

This fails with the following exception:

org.junit.ComparisonFailure: expected:<null> but was:<java.security.KeyStoreException: AndroidKeyStore not found>

如果有帮助，我的目标是 API 级别 23.

I'm targeting API Level 23 if that helps.

推荐答案

https://github.com/robolectric/robolectric/issues/1518 .

简而言之:

来自 java.security.Security javadoc:

From java.security.Security javadoc:

安全属性的默认值是从一个特定于实现的位置，通常是属性Java 安装目录中的文件 lib/security/java.security.

The default values of security properties are read from an implementation-specific location, which is typically the properties file lib/security/java.security in the Java installation directory.

...我们可能不想鼓励人们玩弄这个.

… which we probably don't want to encourage people to monkey with.

看起来这将需要一个方法拦截规则...

Looks like this will need to be a method intercept rule...

尝试 PowerMockito 时也会发生同样的情况.

The same happens when trying PowerMockito.

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