I use Android Studio
, JUnit
and Robolectric
to test my codes. But there an exception thrown when I add shadow class into a test funciton.
Same code work successful on other computers (Windows and Linux).
Environment:
Windows 10
Android Studio 3.5.2
1.8.0_231
build.gradle
:
apply plugin: 'com.android.application'
android {
compileSdkVersion 29
buildToolsVersion "29.0.2"
defaultConfig {
applicationId "com.example.tempapp"
minSdkVersion 20
targetSdkVersion 28
versionCode 1
versionName "1.0"
}
buildTypes {
release {
minifyEnabled false
proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
}
}
compileOptions {
sourceCompatibility = 1.7
targetCompatibility = 1.7
}
testOptions {
unitTests.includeAndroidResources = true
unitTests.all {
systemProperty 'rebolectric.logging.enabled', 'true'
}
}
}
dependencies {
implementation fileTree(dir: 'libs', include: ['*.jar'])
testImplementation 'junit:junit:4.12'
testImplementation "org.robolectric:robolectric:3.1"
}
FooTest.java (Can work successful):
@RunWith(RobolectricTestRunner.class)
@Config(manifest = Config.NONE, constants = BuildConfig.class, sdk = 22)
public class FooTest {
@Test
public void a() {
assertEquals(3, 1 + 2);
}
@Test
public void b() {
assertEquals(3, 1 + 2);
}
}
Run above unit tests, succeed. But there is an exception thrown when I add a shadow class into a unit test, Just a @Config(shadows = {...})
FooTest.java
(Exception when unit test run):
@RunWith(RobolectricTestRunner.class)
@Config(manifest = Config.NONE, constants = BuildConfig.class, sdk = 22)
public class FooTest {
@Test
public void a() {
assertEquals(3, 1 + 2);
}
@Test
@Config(shadows = ShadowTextUtils.class) // Add a shadow
public void b() {
assertEquals(3, 1 + 2);
}
@Implements(value = TextUtils.class)
public static class ShadowTextUtils { }
}
Exception:
java.lang.AssertionError: java.lang.IllegalAccessException: no such field: org.robolectric.internal.ProxyMaker$GeneratedProxy/1585841343.__proxy__/android.content.res.Configuration/putField
at org.robolectric.internal.ProxyMaker.createProxyFactory(ProxyMaker.java:100)
at org.robolectric.internal.ProxyMaker$1.computeValue(ProxyMaker.java:45)
at org.robolectric.internal.ProxyMaker$1.computeValue(ProxyMaker.java:43)
at java.lang.ClassValue.getFromHashMap(ClassValue.java:227)
at java.lang.ClassValue.getFromBackup(ClassValue.java:209)
at java.lang.ClassValue.get(ClassValue.java:115)
at org.robolectric.internal.ProxyMaker.createProxy(ProxyMaker.java:51)
at org.robolectric.internal.Shadow.directlyOn(Shadow.java:37)
at org.robolectric.shadows.ShadowConfiguration.setToDefaults(ShadowConfiguration.java:149)
at android.content.res.Configuration.setToDefaults(Configuration.java)
at android.content.res.Configuration.__constructor__(Configuration.java:612)
at android.content.res.Configuration.<init>(Configuration.java)
at android.content.res.Configuration.__staticInitializer__(Configuration.java:48)
at org.robolectric.util.ReflectionHelpers.callStaticMethod(ReflectionHelpers.java:226)
at org.robolectric.internal.bytecode.RobolectricInternals.performStaticInitialization(RobolectricInternals.java:54)
at org.robolectric.internal.bytecode.ShadowWrangler.classInitializing(ShadowWrangler.java:114)
at org.robolectric.internal.bytecode.RobolectricInternals.classInitializing(RobolectricInternals.java:18)
at android.content.res.Configuration.<clinit>(Configuration.java)
at org.robolectric.shadows.ShadowResources.getSystem(ShadowResources.java:96)
at android.content.res.Resources.getSystem(Resources.java)
at org.robolectric.internal.ParallelUniverse.setUpApplicationState(ParallelUniverse.java:106)
at org.robolectric.RobolectricTestRunner.setUpApplicationState(RobolectricTestRunner.java:423)
at org.robolectric.RobolectricTestRunner$2.evaluate(RobolectricTestRunner.java:254)
at org.robolectric.RobolectricTestRunner.runChild(RobolectricTestRunner.java:191)
at org.robolectric.RobolectricTestRunner.runChild(RobolectricTestRunner.java:56)
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$1.evaluate(RobolectricTestRunner.java:157)
at org.junit.runners.ParentRunner.run(ParentRunner.java:363)
at org.junit.runner.JUnitCore.run(JUnitCore.java:137)
at com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:68)
at com.intellij.rt.execution.junit.IdeaTestRunner$Repeater.startRunnerWithArgs(IdeaTestRunner.java:47)
at com.intellij.rt.execution.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:242)
at com.intellij.rt.execution.junit.JUnitStarter.main(JUnitStarter.java:70)
Caused by: java.lang.IllegalAccessException: no such field: org.robolectric.internal.ProxyMaker$GeneratedProxy/1585841343.__proxy__/android.content.res.Configuration/putField
at java.lang.invoke.MemberName.makeAccessException(MemberName.java:867)
at java.lang.invoke.MemberName$Factory.resolveOrFail(MemberName.java:1003)
at java.lang.invoke.MethodHandles$Lookup.resolveOrFail(MethodHandles.java:1377)
at java.lang.invoke.MethodHandles$Lookup.findSetter(MethodHandles.java:1048)
at org.robolectric.internal.ProxyMaker.createProxyFactory(ProxyMaker.java:85)
at org.robolectric.internal.ProxyMaker$1.computeValue(ProxyMaker.java:45)
at org.robolectric.internal.ProxyMaker$1.computeValue(ProxyMaker.java:43)
at java.lang.ClassValue.getFromHashMap(ClassValue.java:227)
at java.lang.ClassValue.getFromBackup(ClassValue.java:209)
at java.lang.ClassValue.get(ClassValue.java:115)
at org.robolectric.internal.ProxyMaker.createProxy(ProxyMaker.java:51)
at org.robolectric.internal.Shadow.directlyOn(Shadow.java:37)
at org.robolectric.shadows.ShadowConfiguration.setToDefaults(ShadowConfiguration.java:149)
at android.content.res.Configuration.setToDefaults(Configuration.java)
at android.content.res.Configuration.$$robo$$__constructor__(Configuration.java:612)
at android.content.res.Configuration.<init>(Configuration.java)
at android.content.res.Configuration.__staticInitializer__(Configuration.java:48)
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)
... 24 more
Caused by: java.lang.LinkageError: loader constraint violation: when resolving field "__proxy__" the class loader (instance of <bootloader>) of the referring class, org/robolectric/internal/ProxyMaker$GeneratedProxy, and the class loader (instance of org/robolectric/internal/bytecode/InstrumentingClassLoader) for the field's resolved type, android/content/res/Configuration, have different Class objects for that type
at java.lang.invoke.MethodHandleNatives.resolve(Native Method)
at java.lang.invoke.MemberName$Factory.resolve(MemberName.java:975)
at java.lang.invoke.MemberName$Factory.resolveOrFail(MemberName.java:1000)
... 43 more
Process finished with exit code -1
For everyone like me, who works with legacy codebase: your goal is to define system property robolectric.invokedynamic.enable=false
.
https://github.com/robolectric/robolectric/blob/571c28bf97632b4b91a87fa729be0c6a5150a714/sandbox/src/main/java/org/robolectric/internal/bytecode/InvokeDynamic.java#L8
I've had my custom TestRunner defined already, so did it in the following way:
public class TestRunner extends RobolectricTestRunner {
static {
System.setProperty("robolectric.invokedynamic.enable", "false");
}
}
Or Gradle variant:
testOptions {
unitTests.all {
systemProperty 'robolectric.invokedynamic.enable', 'false'
}
}
P.S.
$ java -version
java version "1.8.0_201"
Java(TM) SE Runtime Environment (build 1.8.0_201-b09)
Java HotSpot(TM) 64-Bit Server VM (build 25.201-b09, mixed mode)