1 files changed, 99 insertions, 0 deletions
diff --git a/test/838-override/src/Main.java b/test/838-override/src/Main.java
new file mode 100644
index 0000000000..1e6aa498aa
--- /dev/null
+++ b/test/838-override/src/Main.java
@@ -0,0 +1,99 @@
+/*
+ * Copyright (C) 2022 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.
+ */
+
+public class Main {
+
+  public static void assertEquals(Object expected, Object actual) {
+    if (expected != actual) {
+      throw new Error("Expected " + expected + ", got " + actual);
+    }
+  }
+
+  public static void main(String[] args) {
+    // Tescase 1: a class with:
+    // - a package-private pkg1 'foo'
+    // - a public pkg2 'foo'.
+    {
+      pkg2.PublicFoo obj = new pkg2.PublicFoo();
+      assertEquals(pkg1.Pkg1Foo.class, pkg1.Pkg1Foo.callFoo(obj));
+      assertEquals(pkg2.PublicFoo.class, pkg2.Pkg2Foo.callFoo(obj));
+      assertEquals(pkg2.PublicFoo.class, pkg3.Pkg3Foo.callFoo(obj));
+      assertEquals(pkg2.PublicFoo.class, obj.foo());
+    }
+    // Tescase 2: a class with:
+    // - a package-private pkg1 'foo'
+    // - a public pkg2 'foo'
+    // - a public pkg1 'foo.
+    {
+      pkg1.PublicFoo obj = new pkg1.PublicFoo();
+      assertEquals(pkg1.PublicFoo.class, pkg1.Pkg1Foo.callFoo(obj));
+      assertEquals(pkg1.PublicFoo.class, pkg2.Pkg2Foo.callFoo(obj));
+      assertEquals(pkg1.PublicFoo.class, pkg3.Pkg3Foo.callFoo(obj));
+      assertEquals(pkg1.PublicFoo.class, obj.foo());
+    }
+
+    // Tescase 3: a class with:
+    // - a package-private pkg1 'foo'
+    // - a package-private pkg2 'foo'
+    // - a public pkg3 'foo.
+    {
+      pkg3.PublicFoo obj = new pkg3.PublicFoo();
+      assertEquals(pkg1.Pkg1Foo.class, pkg1.Pkg1Foo.callFoo(obj));
+      assertEquals(pkg2.Pkg2Foo.class, pkg2.Pkg2Foo.callFoo(obj));
+      assertEquals(pkg3.PublicFoo.class, pkg3.Pkg3Foo.callFoo(obj));
+      assertEquals(pkg3.PublicFoo.class, obj.foo());
+    }
+
+    // Tescase 4: a class with:
+    // - a package-private pkg1 'foo'
+    // - a package-private pkg2 'foo'
+    // - a public pkg3 'foo.
+    // - a public pkg2 'foo'
+    {
+      pkg2.PublicFooInheritsPkg3 obj = new pkg2.PublicFooInheritsPkg3();
+      assertEquals(pkg1.Pkg1Foo.class, pkg1.Pkg1Foo.callFoo(obj));
+      assertEquals(pkg2.PublicFooInheritsPkg3.class, pkg2.Pkg2Foo.callFoo(obj));
+      assertEquals(pkg2.PublicFooInheritsPkg3.class, pkg3.Pkg3Foo.callFoo(obj));
+      assertEquals(pkg2.PublicFooInheritsPkg3.class, obj.foo());
+    }
+
+    // Tescase 5: a class with:
+    // - a package-private pkg1 'foo'
+    // - a package-private pkg2 'foo'
+    // - a public pkg3 'foo.
+    // - a public pkg2 'foo'
+    // - a public pkg1 'foo'
+    {
+      pkg1.PublicFooInheritsPkg2 obj = new pkg1.PublicFooInheritsPkg2();
+      assertEquals(pkg1.PublicFooInheritsPkg2.class, pkg1.Pkg1Foo.callFoo(obj));
+      assertEquals(pkg1.PublicFooInheritsPkg2.class, pkg2.Pkg2Foo.callFoo(obj));
+      assertEquals(pkg1.PublicFooInheritsPkg2.class, pkg3.Pkg3Foo.callFoo(obj));
+      assertEquals(pkg1.PublicFooInheritsPkg2.class, obj.foo());
+    }
+
+    // Tescase 6: a class with:
+    // - a package-private pkg1 'foo'
+    // - a package-private pkg2 'foo'
+    // - a public pkg1 'foo.
+    {
+      pkg1.LowerIndexImplementsFoo obj = new pkg1.LowerIndexImplementsFoo();
+      assertEquals(pkg1.LowerIndexPublicFoo.class, pkg1.Pkg1Foo.callFoo(obj));
+      assertEquals(pkg2.Pkg2Foo.class, pkg2.Pkg2Foo.callFoo(obj));
+      assertEquals(pkg2.Pkg2Foo.class, pkg3.Pkg3Foo.callFoo(obj));
+      assertEquals(pkg1.LowerIndexPublicFoo.class, obj.foo());
+    }
+  }
+}