Merge "Delete test validation" into main
diff --git a/ravenwood/TEST_MAPPING b/ravenwood/TEST_MAPPING
index 691d06e..7e2ee3e 100644
--- a/ravenwood/TEST_MAPPING
+++ b/ravenwood/TEST_MAPPING
@@ -52,10 +52,6 @@
       "host": true
     },
     {
-      "name": "RavenwoodCoreTest",
-      "host": true
-    },
-    {
       "name": "RavenwoodResApkTest",
       "host": true
     },
diff --git a/ravenwood/coretest/Android.bp b/ravenwood/coretest/Android.bp
deleted file mode 100644
index a78c5c1..0000000
--- a/ravenwood/coretest/Android.bp
+++ /dev/null
@@ -1,23 +0,0 @@
-package {
-    // See: http://go/android-license-faq
-    // A large-scale-change added 'default_applicable_licenses' to import
-    // all of the 'license_kinds' from "frameworks_base_license"
-    // to get the below license kinds:
-    //   SPDX-license-identifier-Apache-2.0
-    default_applicable_licenses: ["frameworks_base_license"],
-}
-
-android_ravenwood_test {
-    name: "RavenwoodCoreTest",
-
-    static_libs: [
-        "androidx.annotation_annotation",
-        "androidx.test.ext.junit",
-        "androidx.test.rules",
-    ],
-    srcs: [
-        "test/**/*.java",
-    ],
-    sdk_version: "test_current",
-    auto_gen_config: true,
-}
diff --git a/ravenwood/coretest/README.md b/ravenwood/coretest/README.md
deleted file mode 100644
index b60bfbf..0000000
--- a/ravenwood/coretest/README.md
+++ /dev/null
@@ -1,3 +0,0 @@
-# Ravenwood core test
-
-This test contains (non-bivalent) tests for Ravenwood itself -- e.g. tests for the ravenwood rules.
\ No newline at end of file
diff --git a/ravenwood/coretest/test/com/android/ravenwoodtest/coretest/RavenwoodTestRunnerValidationTest.java b/ravenwood/coretest/test/com/android/ravenwoodtest/coretest/RavenwoodTestRunnerValidationTest.java
deleted file mode 100644
index f1e33cb..0000000
--- a/ravenwood/coretest/test/com/android/ravenwoodtest/coretest/RavenwoodTestRunnerValidationTest.java
+++ /dev/null
@@ -1,53 +0,0 @@
-/*
- * Copyright (C) 2024 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package com.android.ravenwoodtest.coretest;
-
-import android.platform.test.ravenwood.RavenwoodRule;
-
-import androidx.test.runner.AndroidJUnit4; // Intentionally use the deprecated one.
-
-import org.junit.Assume;
-import org.junit.Rule;
-import org.junit.Test;
-import org.junit.rules.ExpectedException;
-import org.junit.rules.RuleChain;
-import org.junit.runner.RunWith;
-
-/**
- * Test for the test runner validator in RavenwoodRule.
- */
-@RunWith(AndroidJUnit4.class)
-public class RavenwoodTestRunnerValidationTest {
-    // Note the following rules don't have a @Rule, because they need to be applied in a specific
-    // order. So we use a RuleChain instead.
-    private ExpectedException mThrown = ExpectedException.none();
-    private final RavenwoodRule mRavenwood = new RavenwoodRule();
-
-    @Rule
-    public final RuleChain chain = RuleChain.outerRule(mThrown).around(mRavenwood);
-
-    public RavenwoodTestRunnerValidationTest() {
-        Assume.assumeTrue(RavenwoodRule._$RavenwoodPrivate.isOptionalValidationEnabled());
-        // Because RavenwoodRule will throw this error before executing the test method,
-        // we can't do it in the test method itself.
-        // So instead, we initialize it here.
-        mThrown.expectMessage("Switch to androidx.test.ext.junit.runners.AndroidJUnit4");
-    }
-
-    @Test
-    public void testValidateTestRunner() {
-    }
-}
diff --git a/ravenwood/coretest/test/com/android/ravenwoodtest/coretest/methodvalidation/RavenwoodTestMethodValidation_Fail01_Test.java b/ravenwood/coretest/test/com/android/ravenwoodtest/coretest/methodvalidation/RavenwoodTestMethodValidation_Fail01_Test.java
deleted file mode 100644
index db95fad..0000000
--- a/ravenwood/coretest/test/com/android/ravenwoodtest/coretest/methodvalidation/RavenwoodTestMethodValidation_Fail01_Test.java
+++ /dev/null
@@ -1,51 +0,0 @@
-/*
- * Copyright (C) 2024 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package com.android.ravenwoodtest.coretest.methodvalidation;
-
-import android.platform.test.ravenwood.RavenwoodRule;
-
-import androidx.test.runner.AndroidJUnit4;
-
-import org.junit.Rule;
-import org.junit.Test;
-import org.junit.rules.ExpectedException;
-import org.junit.rules.RuleChain;
-import org.junit.runner.RunWith;
-
-/**
- * RavenwoodRule has a validator to ensure "test-looking" methods have valid JUnit annotations.
- * This class contains tests for this validator.
- */
-@RunWith(AndroidJUnit4.class)
-public class RavenwoodTestMethodValidation_Fail01_Test {
-    private ExpectedException mThrown = ExpectedException.none();
-    private final RavenwoodRule mRavenwood = new RavenwoodRule();
-
-    @Rule
-    public final RuleChain chain = RuleChain.outerRule(mThrown).around(mRavenwood);
-
-    public RavenwoodTestMethodValidation_Fail01_Test() {
-        mThrown.expectMessage("Method setUp() doesn't have @Before");
-    }
-
-    @SuppressWarnings("JUnit4SetUpNotRun")
-    public void setUp() {
-    }
-
-    @Test
-    public void testEmpty() {
-    }
-}
diff --git a/ravenwood/coretest/test/com/android/ravenwoodtest/coretest/methodvalidation/RavenwoodTestMethodValidation_Fail02_Test.java b/ravenwood/coretest/test/com/android/ravenwoodtest/coretest/methodvalidation/RavenwoodTestMethodValidation_Fail02_Test.java
deleted file mode 100644
index ddc66c7..0000000
--- a/ravenwood/coretest/test/com/android/ravenwoodtest/coretest/methodvalidation/RavenwoodTestMethodValidation_Fail02_Test.java
+++ /dev/null
@@ -1,51 +0,0 @@
-/*
- * Copyright (C) 2024 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package com.android.ravenwoodtest.coretest.methodvalidation;
-
-import android.platform.test.ravenwood.RavenwoodRule;
-
-import androidx.test.runner.AndroidJUnit4;
-
-import org.junit.Rule;
-import org.junit.Test;
-import org.junit.rules.ExpectedException;
-import org.junit.rules.RuleChain;
-import org.junit.runner.RunWith;
-
-/**
- * RavenwoodRule has a validator to ensure "test-looking" methods have valid JUnit annotations.
- * This class contains tests for this validator.
- */
-@RunWith(AndroidJUnit4.class)
-public class RavenwoodTestMethodValidation_Fail02_Test {
-    private ExpectedException mThrown = ExpectedException.none();
-    private final RavenwoodRule mRavenwood = new RavenwoodRule();
-
-    @Rule
-    public final RuleChain chain = RuleChain.outerRule(mThrown).around(mRavenwood);
-
-    public RavenwoodTestMethodValidation_Fail02_Test() {
-        mThrown.expectMessage("Method tearDown() doesn't have @After");
-    }
-
-    @SuppressWarnings("JUnit4TearDownNotRun")
-    public void tearDown() {
-    }
-
-    @Test
-    public void testEmpty() {
-    }
-}
diff --git a/ravenwood/coretest/test/com/android/ravenwoodtest/coretest/methodvalidation/RavenwoodTestMethodValidation_Fail03_Test.java b/ravenwood/coretest/test/com/android/ravenwoodtest/coretest/methodvalidation/RavenwoodTestMethodValidation_Fail03_Test.java
deleted file mode 100644
index ec8e907..0000000
--- a/ravenwood/coretest/test/com/android/ravenwoodtest/coretest/methodvalidation/RavenwoodTestMethodValidation_Fail03_Test.java
+++ /dev/null
@@ -1,51 +0,0 @@
-/*
- * Copyright (C) 2024 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package com.android.ravenwoodtest.coretest.methodvalidation;
-
-import android.platform.test.ravenwood.RavenwoodRule;
-
-import androidx.test.runner.AndroidJUnit4;
-
-import org.junit.Rule;
-import org.junit.Test;
-import org.junit.rules.ExpectedException;
-import org.junit.rules.RuleChain;
-import org.junit.runner.RunWith;
-
-/**
- * RavenwoodRule has a validator to ensure "test-looking" methods have valid JUnit annotations.
- * This class contains tests for this validator.
- */
-@RunWith(AndroidJUnit4.class)
-public class RavenwoodTestMethodValidation_Fail03_Test {
-    private ExpectedException mThrown = ExpectedException.none();
-    private final RavenwoodRule mRavenwood = new RavenwoodRule();
-
-    @Rule
-    public final RuleChain chain = RuleChain.outerRule(mThrown).around(mRavenwood);
-
-    public RavenwoodTestMethodValidation_Fail03_Test() {
-        mThrown.expectMessage("Method testFoo() doesn't have @Test");
-    }
-
-    @SuppressWarnings("JUnit4TestNotRun")
-    public void testFoo() {
-    }
-
-    @Test
-    public void testEmpty() {
-    }
-}
diff --git a/ravenwood/coretest/test/com/android/ravenwoodtest/coretest/methodvalidation/RavenwoodTestMethodValidation_OkTest.java b/ravenwood/coretest/test/com/android/ravenwoodtest/coretest/methodvalidation/RavenwoodTestMethodValidation_OkTest.java
deleted file mode 100644
index d952d07..0000000
--- a/ravenwood/coretest/test/com/android/ravenwoodtest/coretest/methodvalidation/RavenwoodTestMethodValidation_OkTest.java
+++ /dev/null
@@ -1,56 +0,0 @@
-/*
- * Copyright (C) 2024 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package com.android.ravenwoodtest.coretest.methodvalidation;
-
-import android.platform.test.ravenwood.RavenwoodRule;
-
-import androidx.test.runner.AndroidJUnit4;
-
-import org.junit.After;
-import org.junit.Before;
-import org.junit.Rule;
-import org.junit.Test;
-import org.junit.runner.RunWith;
-
-/**
- * RavenwoodRule has a validator to ensure "test-looking" methods have valid JUnit annotations.
- * This class contains tests for this validator.
- */
-@RunWith(AndroidJUnit4.class)
-public class RavenwoodTestMethodValidation_OkTest {
-    @Rule
-    public final RavenwoodRule mRavenwood = new RavenwoodRule();
-
-    @Before
-    public void setUp() {
-    }
-
-    @Before
-    public void testSetUp() {
-    }
-
-    @After
-    public void tearDown() {
-    }
-
-    @After
-    public void testTearDown() {
-    }
-
-    @Test
-    public void testEmpty() {
-    }
-}
diff --git a/ravenwood/junit-impl-src/android/platform/test/ravenwood/RavenwoodRuleImpl.java b/ravenwood/junit-impl-src/android/platform/test/ravenwood/RavenwoodRuleImpl.java
index 3ea4cb7..31be7a1 100644
--- a/ravenwood/junit-impl-src/android/platform/test/ravenwood/RavenwoodRuleImpl.java
+++ b/ravenwood/junit-impl-src/android/platform/test/ravenwood/RavenwoodRuleImpl.java
@@ -18,7 +18,6 @@
 
 import static com.android.ravenwood.common.RavenwoodCommonUtils.RAVENWOOD_RESOURCE_APK;
 
-import static org.junit.Assert.assertFalse;
 import static org.junit.Assert.assertNotNull;
 import static org.junit.Assert.assertTrue;
 
@@ -39,24 +38,12 @@
 import com.android.internal.os.RuntimeInit;
 import com.android.server.LocalServices;
 
-import org.junit.After;
-import org.junit.AfterClass;
-import org.junit.Assert;
-import org.junit.Before;
-import org.junit.BeforeClass;
-import org.junit.Test;
 import org.junit.runner.Description;
-import org.junit.runner.RunWith;
 import org.junit.runners.model.Statement;
 
 import java.io.File;
 import java.io.IOException;
 import java.io.PrintStream;
-import java.lang.annotation.Annotation;
-import java.lang.reflect.Method;
-import java.lang.reflect.Modifier;
-import java.util.ArrayList;
-import java.util.List;
 import java.util.Map;
 import java.util.Objects;
 import java.util.concurrent.Executors;
@@ -243,102 +230,7 @@
 
     public static void validate(Statement base, Description description,
             boolean enableOptionalValidation) {
-        validateTestRunner(base, description, enableOptionalValidation);
-        validateTestAnnotations(base, description, enableOptionalValidation);
-    }
-
-    private static void validateTestRunner(Statement base, Description description,
-            boolean shouldFail) {
-        final var testClass = description.getTestClass();
-        final var runWith = testClass.getAnnotation(RunWith.class);
-        if (runWith == null) {
-            return;
-        }
-
-        // Due to build dependencies, we can't directly refer to androidx classes here,
-        // so just check the class name instead.
-        if (runWith.value().getCanonicalName().equals("androidx.test.runner.AndroidJUnit4")) {
-            var message = "Test " + testClass.getCanonicalName() + " uses deprecated"
-                    + " test runner androidx.test.runner.AndroidJUnit4."
-                    + " Switch to androidx.test.ext.junit.runners.AndroidJUnit4.";
-            if (shouldFail) {
-                Assert.fail(message);
-            } else {
-                System.err.println("Warning: " + message);
-            }
-        }
-    }
-
-    /**
-     * @return if a method has any of annotations.
-     */
-    private static boolean hasAnyAnnotations(Method m, Class<? extends Annotation>... annotations) {
-        for (var anno : annotations) {
-            if (m.getAnnotation(anno) != null) {
-                return true;
-            }
-        }
-        return false;
-    }
-
-    private static void validateTestAnnotations(Statement base, Description description,
-            boolean enableOptionalValidation) {
-        final var testClass = description.getTestClass();
-
-        final var message = new StringBuilder();
-
-        boolean hasErrors = false;
-        for (Method m : collectMethods(testClass)) {
-            if (Modifier.isPublic(m.getModifiers()) && m.getName().startsWith("test")) {
-                if (!hasAnyAnnotations(m, Test.class, Before.class, After.class,
-                        BeforeClass.class, AfterClass.class)) {
-                    message.append("\nMethod " + m.getName() + "() doesn't have @Test");
-                    hasErrors = true;
-                }
-            }
-            if ("setUp".equals(m.getName())) {
-                if (!hasAnyAnnotations(m, Before.class)) {
-                    message.append("\nMethod " + m.getName() + "() doesn't have @Before");
-                    hasErrors = true;
-                }
-                if (!Modifier.isPublic(m.getModifiers())) {
-                    message.append("\nMethod " + m.getName() + "() must be public");
-                    hasErrors = true;
-                }
-            }
-            if ("tearDown".equals(m.getName())) {
-                if (!hasAnyAnnotations(m, After.class)) {
-                    message.append("\nMethod " + m.getName() + "() doesn't have @After");
-                    hasErrors = true;
-                }
-                if (!Modifier.isPublic(m.getModifiers())) {
-                    message.append("\nMethod " + m.getName() + "() must be public");
-                    hasErrors = true;
-                }
-            }
-        }
-        assertFalse("Problem(s) detected in class " + testClass.getCanonicalName() + ":"
-                + message, hasErrors);
-    }
-
-    /**
-     * Collect all (public or private or any) methods in a class, including inherited methods.
-     */
-    private static List<Method> collectMethods(Class<?> clazz) {
-        var ret = new ArrayList<Method>();
-        collectMethods(clazz, ret);
-        return ret;
-    }
-
-    private static void collectMethods(Class<?> clazz, List<Method> result) {
-        // Class.getMethods() only return public methods, so we need to use getDeclaredMethods()
-        // instead, and recurse.
-        for (var m : clazz.getDeclaredMethods()) {
-            result.add(m);
-        }
-        if (clazz.getSuperclass() != null) {
-            collectMethods(clazz.getSuperclass(), result);
-        }
+        // Nothing to check, for now.
     }
 
     /**