Switch android.test and junit classes to use UnsupportedAppUsage

The UnsupportedAppUsage annotations could not be added directly to the
java files in src/ as they have to be built against the current api
which does not include the annotation. Instead this uses the same
technique as used for libcore/ojluni files and adds the annotations to
stub files (in hiddenapi/src) which are built as part of the
android.test.base-hiddenapi target. That target is added to a special
whitelist in build/soong/java/config/config.go which causes the
hiddenapi information to be extracted from the target.

Also, updates the preupload check to prevent anymore entries being
added to the config/hiddenapi-greylist.txt for android.test or junit
classes.

Bug: 73711752
Test: m cts-hiddenapi_flags-csv and check that it contained the
        correct entries even though they had been removed from
	config/hiddenapi-greylist.txt
Change-Id: Ifaf15d2751f54cb03f8402b866a0ee4da7acc4d2

config/hiddenapi-greylist.txt

@@ -1556,9 +1556,6 @@ Landroid/telephony/SmsCbMessage;->getServiceCategory()I
 Landroid/telephony/SmsCbMessage;->isCmasMessage()Z
 Landroid/telephony/SmsCbMessage;->isEmergencyMessage()Z
 Landroid/telephony/TelephonyManager$MultiSimVariants;->values()[Landroid/telephony/TelephonyManager$MultiSimVariants;
-Landroid/test/AndroidTestCase;->getTestContext()Landroid/content/Context;
-Landroid/test/AndroidTestCase;->setTestContext(Landroid/content/Context;)V
-Landroid/test/InstrumentationTestCase;->runMethod(Ljava/lang/reflect/Method;I)V
 Landroid/util/Singleton;-><init>()V
 Landroid/util/XmlPullAttributes;-><init>(Lorg/xmlpull/v1/XmlPullParser;)V
 Landroid/util/XmlPullAttributes;->mParser:Lorg/xmlpull/v1/XmlPullParser;
@@ -4596,9 +4593,6 @@ Lgov/nist/javax/sip/address/SipUri;->setParameter(Ljava/lang/String;Ljava/lang/S
 Lgov/nist/javax/sip/address/SipUri;->setUserParam(Ljava/lang/String;)V
 Lgov/nist/javax/sip/parser/URLParser;-><init>(Ljava/lang/String;)V
 Lgov/nist/javax/sip/parser/URLParser;->sipURL(Z)Lgov/nist/javax/sip/address/SipUri;
-Ljunit/framework/TestCase;->fName:Ljava/lang/String;
-Ljunit/framework/TestSuite;->isPublicTestMethod(Ljava/lang/reflect/Method;)Z
-Ljunit/framework/TestSuite;->isTestMethod(Ljava/lang/reflect/Method;)Z
 Lorg/apache/xalan/extensions/ExpressionContext;->getContextNode()Lorg/w3c/dom/Node;
 Lorg/apache/xalan/extensions/ExpressionContext;->getErrorListener()Ljavax/xml/transform/ErrorListener;
 Lorg/apache/xalan/extensions/ExpressionContext;->getVariableOrParam(Lorg/apache/xml/utils/QName;)Lorg/apache/xpath/objects/XObject;

test-base/hiddenapi/Android.bp

@@ -0,0 +1,29 @@
+//
+// Copyright (C) 2019 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.
+//
+
+// Provided solely to contribute information about which hidden parts of the android.test.base
+// library are used by apps. The source files are stubs of the actual files in ../src which use the
+// UnsupportedAppUsage annotation to tag those methods that are accessible via the hiddenapi.
+// Relies on the convention that modules with name <x>-hiddenapi provide hiddenapi information for
+// module <x> that is on the bootclasspath.
+java_library {
+    name: "android.test.base-hiddenapi",
+    compile_dex: true,
+
+    srcs: ["src/**/*.java"],
+
+    libs: ["android.test.base"],
+}

test-base/hiddenapi/src/android/test/AndroidTestCase.java

@@ -0,0 +1,46 @@
+/*
+ * Copyright (C) 2019 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 android.test;
+
+import android.annotation.UnsupportedAppUsage;
+import android.content.Context;
+
+import junit.framework.TestCase;
+
+/**
+ * @deprecated Stub only
+ */
+@SuppressWarnings({ "unchecked", "deprecation", "all" })
+@Deprecated
+public class AndroidTestCase extends TestCase {
+
+    /**
+     * Stub only
+     */
+    @UnsupportedAppUsage
+    public void setTestContext(Context context) {
+        throw new RuntimeException("Stub!");
+    }
+
+    /**
+     * Stub only
+     */
+    @UnsupportedAppUsage
+    public Context getTestContext() {
+        throw new RuntimeException("Stub!");
+    }
+}

test-base/hiddenapi/src/android/test/InstrumentationTestCase.java

@@ -0,0 +1,39 @@
+/*
+ * Copyright (C) 2019 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 android.test;
+
+import android.annotation.UnsupportedAppUsage;
+
+import junit.framework.TestCase;
+
+import java.lang.reflect.Method;
+
+/**
+ * @deprecated Stub only
+ */
+@SuppressWarnings({ "unchecked", "deprecation", "all" })
+@Deprecated
+public class InstrumentationTestCase extends TestCase {
+
+    /**
+     * Stub only
+     */
+    @UnsupportedAppUsage
+    private void runMethod(Method runMethod, int tolerance) throws Throwable {
+        throw new RuntimeException("Stub!");
+    }
+}

test-base/hiddenapi/src/junit/framework/TestCase.java

@@ -0,0 +1,46 @@
+/*
+ * Copyright (C) 2019 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 junit.framework;
+
+import android.annotation.UnsupportedAppUsage;
+
+/**
+ * Stub only
+ */
+@SuppressWarnings({ "unchecked", "deprecation", "all" })
+public abstract class TestCase extends Assert implements Test {
+
+    /**
+     * the name of the test case
+     */
+    @UnsupportedAppUsage
+    private String fName;
+
+    /**
+     * Stub only
+     */
+    public int countTestCases() {
+        throw new RuntimeException("Stub!");
+    }
+
+    /**
+     * Stub only
+     */
+    public void run(TestResult result) {
+        throw new RuntimeException("Stub!");
+    }
+}

test-base/hiddenapi/src/junit/framework/TestSuite.java

@@ -0,0 +1,58 @@
+/*
+ * Copyright (C) 2019 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 junit.framework;
+
+import android.annotation.UnsupportedAppUsage;
+
+import java.lang.reflect.Method;
+
+/**
+ * Stub only
+ */
+@SuppressWarnings({ "unchecked", "deprecation", "all" })
+public class TestSuite implements Test {
+
+    /**
+     * Stub only
+     */
+    @UnsupportedAppUsage
+    private boolean isPublicTestMethod(Method m) {
+        throw new RuntimeException("Stub!");
+    }
+
+    /**
+     * Stub only
+     */
+    @UnsupportedAppUsage
+    private boolean isTestMethod(Method m) {
+        throw new RuntimeException("Stub!");
+    }
+
+    /**
+     * Stub only
+     */
+    public int countTestCases() {
+        throw new RuntimeException("Stub!");
+    }
+
+    /**
+     * Stub only
+     */
+    public void run(TestResult result) {
+        throw new RuntimeException("Stub!");
+    }
+}

tools/hiddenapi/exclude.sh

@@ -9,6 +9,7 @@ LOCAL_DIR="$( dirname ${BASH_SOURCE} )"
 LIBCORE_PACKAGES="\
   android.icu \
   android.system \
+  android.test \
   com.android.bouncycastle \
   com.android.conscrypt \
   com.android.i18n.phonenumbers \
@@ -17,6 +18,7 @@ LIBCORE_PACKAGES="\
   dalvik \
   java \
   javax \
+  junit \
   libcore \
   org.apache.harmony \
   org.json \