Add tests for accessing referrer's class.

Prepare for improving codegen for accessing referrer's class
from unresolved compiling class by improving test coverage.
The disabled CHECK statements show the intended results.

Test: Additional tests in 727-checker-unresolved-class.
Test: m test-art-host-gtest
Test: testrunner.py --host --optimizing
Bug: 161898207
Change-Id: I7473d2693060b843670ea81f5f0e7bbb3c2d9031

1 files changed, 52 insertions, 0 deletions

diff --git a/test/727-checker-unresolved-class/src2/resolved/PackagePrivateSubclassOfUnresolvedClass.java b/test/727-checker-unresolved-class/src2/resolved/PackagePrivateSubclassOfUnresolvedClass.java
new file mode 100644
index 0000000000..ce94cce551
--- /dev/null
+++ b/test/727-checker-unresolved-class/src2/resolved/PackagePrivateSubclassOfUnresolvedClass.java
@@ -0,0 +1,52 @@
+/*
+ * Copyright (C) 2020 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 resolved;
+
+import getters.GetPackagePrivateSubclassOfUnresolvedClass;
+import unresolved.UnresolvedPublicClass;
+
+class PackagePrivateSubclassOfUnresolvedClass extends UnresolvedPublicClass {
+  public static void $noinline$main() {
+    $noinline$testReferrersClass();
+    $noinline$testInlinedReferrersClass();
+    $noinline$testInlinedReferrersClassFromSamePackage();
+
+    System.out.println("PackagePrivateSubclassOfUnresolvedClass passed");
+  }
+
+  /// CHECK-START: void resolved.PackagePrivateSubclassOfUnresolvedClass.$noinline$testReferrersClass() builder (after)
+  // CHECK: LoadClass class_name:resolved.PackagePrivateSubclassOfUnresolvedClass needs_access_check:false
+  static void $noinline$testReferrersClass() {
+    Class<?> c = PackagePrivateSubclassOfUnresolvedClass.class;
+  }
+
+  /// CHECK-START: void resolved.PackagePrivateSubclassOfUnresolvedClass.$noinline$testInlinedReferrersClass() inliner (after)
+  // CHECK: LoadClass class_name:resolved.PackagePrivateSubclassOfUnresolvedClass needs_access_check:true
+  static void $noinline$testInlinedReferrersClass() {
+    try {
+      // TODO: Make $inline$ and enable CHECK above when we relax the verifier. b/28313047
+      Class<?> c = GetPackagePrivateSubclassOfUnresolvedClass.get();
+      throw new Error("Unreachable");
+    } catch (IllegalAccessError expected) {}
+  }
+
+  /// CHECK-START: void resolved.PackagePrivateSubclassOfUnresolvedClass.$noinline$testInlinedReferrersClassFromSamePackage() inliner (after)
+  // CHECK: LoadClass class_name:resolved.PackagePrivateSubclassOfUnresolvedClass needs_access_check:false
+  static void $noinline$testInlinedReferrersClassFromSamePackage() {
+    Class<?> c = GetPackagePrivateSubclassOfUnresolvedClassFromSamePackage.get();
+  }
+}