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package org.robolectric.shadows;
import static android.os.Build.VERSION_CODES.JELLY_BEAN_MR1;
import static android.os.Build.VERSION_CODES.Q;
import static com.google.common.truth.Truth.assertThat;
import static org.junit.Assert.assertThrows;
import static org.junit.Assert.assertTrue;
import static org.junit.Assert.fail;
import static org.robolectric.Shadows.shadowOf;
import android.content.Context;
import android.os.Binder;
import android.os.Parcel;
import android.os.UserHandle;
import android.os.UserManager;
import androidx.test.core.app.ApplicationProvider;
import androidx.test.ext.junit.runners.AndroidJUnit4;
import org.junit.Before;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.robolectric.annotation.Config;
@RunWith(AndroidJUnit4.class)
public class ShadowBinderTest {
private UserManager userManager;
@Before
public void setUp() {
Context context = ApplicationProvider.getApplicationContext();
userManager = (UserManager) context.getSystemService(Context.USER_SERVICE);
}
@Test
public void transactCallsOnTransact() throws Exception {
TestBinder testBinder = new TestBinder();
Parcel data = Parcel.obtain();
Parcel reply = Parcel.obtain();
data.writeString("Hello Robolectric");
assertTrue(testBinder.transact(2, data, reply, 3));
assertThat(testBinder.code).isEqualTo(2);
assertThat(testBinder.data).isSameInstanceAs(data);
assertThat(testBinder.reply).isSameInstanceAs(reply);
assertThat(testBinder.flags).isEqualTo(3);
reply.readException();
assertThat(reply.readString()).isEqualTo("Hello Robolectric");
}
static class TestBinder extends Binder {
int code;
Parcel data;
Parcel reply;
int flags;
@Override
protected boolean onTransact(int code, Parcel data, Parcel reply, int flags) {
this.code = code;
this.data = data;
this.reply = reply;
this.flags = flags;
String string = data.readString();
reply.writeNoException();
reply.writeString(string);
return true;
}
}
@Test
public void thrownExceptionIsParceled() throws Exception {
TestThrowingBinder testThrowingBinder = new TestThrowingBinder();
Parcel data = Parcel.obtain();
Parcel reply = Parcel.obtain();
testThrowingBinder.transact(2, data, reply, 3);
try {
reply.readException();
fail(); // Expect thrown
} catch (SecurityException e) {
assertThat(e.getMessage()).isEqualTo("Halt! Who goes there?");
}
}
static class TestThrowingBinder extends Binder {
@Override
protected boolean onTransact(int code, Parcel data, Parcel reply, int flags) {
throw new SecurityException("Halt! Who goes there?");
}
}
@Test
public void testSetCallingUid() {
ShadowBinder.setCallingUid(37);
assertThat(Binder.getCallingUid()).isEqualTo(37);
}
@Test
public void testSetCallingPid() {
ShadowBinder.setCallingPid(25);
assertThat(Binder.getCallingPid()).isEqualTo(25);
}
@Test
@Config(minSdk = JELLY_BEAN_MR1)
public void testSetCallingUserHandle() {
UserHandle newUser = shadowOf(userManager).addUser(10, "secondary_user", 0);
ShadowBinder.setCallingUserHandle(newUser);
assertThat(Binder.getCallingUserHandle()).isEqualTo(newUser);
}
@Test
public void testGetCallingUidShouldUseProcessUidByDefault() {
assertThat(Binder.getCallingUid()).isEqualTo(android.os.Process.myUid());
}
@Test
public void testGetCallingPidShouldUseProcessPidByDefault() {
assertThat(Binder.getCallingPid()).isEqualTo(android.os.Process.myPid());
}
@Test
@Config(minSdk = Q)
public void testGetCallingUidOrThrowWithValueSet() {
ShadowBinder.setCallingUid(123);
assertThat(Binder.getCallingUidOrThrow()).isEqualTo(123);
}
@Test
@Config(minSdk = Q)
public void testGetCallingUidOrThrowWithValueNotSet() {
ShadowBinder.reset();
IllegalStateException ex =
assertThrows(IllegalStateException.class, () -> Binder.getCallingUidOrThrow());
// Typo in "transaction" is intentional to match platform
assertThat(ex).hasMessageThat().isEqualTo("Thread is not in a binder transcation");
}
@Test
@Config(minSdk = JELLY_BEAN_MR1)
public void testGetCallingUserHandleShouldUseThatOfProcessByDefault() {
assertThat(Binder.getCallingUserHandle()).isEqualTo(android.os.Process.myUserHandle());
}
@Test
public void testResetUpdatesCallingUidAndPid() {
ShadowBinder.setCallingPid(48);
ShadowBinder.setCallingUid(49);
ShadowBinder.reset();
assertThat(Binder.getCallingPid()).isEqualTo(android.os.Process.myPid());
assertThat(Binder.getCallingUid()).isEqualTo(android.os.Process.myUid());
}
@Test
@Config(minSdk = Q)
public void testResetUpdatesGetCallingUidOrThrow() {
ShadowBinder.setCallingUid(123);
ShadowBinder.reset();
assertThrows(IllegalStateException.class, () -> Binder.getCallingUidOrThrow());
}
@Test
@Config(minSdk = JELLY_BEAN_MR1)
public void testResetUpdatesCallingUserHandle() {
UserHandle newUser = shadowOf(userManager).addUser(10, "secondary_user", 0);
ShadowBinder.setCallingUserHandle(newUser);
ShadowBinder.reset();
assertThat(Binder.getCallingUserHandle()).isEqualTo(android.os.Process.myUserHandle());
}
}
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