Regression test for composition of outline with multiple positions
Bug: b/289788048
Change-Id: I82cb076acc1ae87be0bb2225acbce8bc1dd2d033
diff --git a/src/test/java/com/android/tools/r8/mappingcompose/ComposeDuplicateOutlineTest.java b/src/test/java/com/android/tools/r8/mappingcompose/ComposeDuplicateOutlineTest.java
new file mode 100644
index 0000000..381afdd1
--- /dev/null
+++ b/src/test/java/com/android/tools/r8/mappingcompose/ComposeDuplicateOutlineTest.java
@@ -0,0 +1,66 @@
+// Copyright (c) 2023, the R8 project authors. Please see the AUTHORS file
+// for details. All rights reserved. Use of this source code is governed by a
+// BSD-style license that can be found in the LICENSE file.
+
+package com.android.tools.r8.mappingcompose;
+
+import static org.junit.Assert.assertThrows;
+
+import com.android.tools.r8.TestBase;
+import com.android.tools.r8.TestParameters;
+import com.android.tools.r8.TestParametersCollection;
+import com.android.tools.r8.naming.ClassNameMapper;
+import com.android.tools.r8.naming.MappingComposeException;
+import com.android.tools.r8.naming.MappingComposer;
+import com.android.tools.r8.utils.StringUtils;
+import org.junit.Test;
+import org.junit.runners.Parameterized.Parameter;
+import org.junit.runners.Parameterized.Parameters;
+
+/* This is a regression test for b/289788048 */
+public class ComposeDuplicateOutlineTest extends TestBase {
+
+ @Parameter() public TestParameters parameters;
+
+ @Parameters(name = "{0}")
+ public static TestParametersCollection data() {
+ return getTestParameters().withNoneRuntime().build();
+ }
+
+ private static final String mappingFoo =
+ StringUtils.unixLines(
+ "# {'id':'com.android.tools.r8.mapping','version':'2.2'}",
+ "package.Class$$ExternalSyntheticOutline0 -> package.internal.X:",
+ "# {'id':'sourceFile','fileName':'R8$$SyntheticClass'}",
+ "# {'id':'com.android.tools.r8.synthesized'}",
+ " 1:2:long package.Int2IntLinkedOpenHashMap$$InternalSyntheticOutline$HASH$0"
+ + ".m(long,long,long):0:1"
+ + " -> a",
+ " # {'id':'com.android.tools.r8.synthesized'}",
+ " # {'id':'com.android.tools.r8.outline'}",
+ "package.Class -> package.internal.Y:",
+ "# {'id':'sourceFile','fileName':'FieldDefinition.java'}",
+ " 1:1:void foo():21:21 -> a",
+ " # {'id':'com.android.tools.r8.outlineCallsite',"
+ + "'positions':{'1':2,'2':3},"
+ + "'outline':'Lpackage/internal/X;a(JJJ)J'}",
+ " 2:2:void foo():1337:1337 -> a",
+ " 3:3:void foo():44:44 -> a");
+ private static final String mappingBar =
+ StringUtils.unixLines(
+ "# {'id':'com.android.tools.r8.mapping','version':'2.2'}",
+ "package.internal.Y -> package.new_internal.Y:",
+ // If there are multiple throwing instructions for a line number, we can get multiple
+ // mappings in D8.
+ " 1:10:void a():1:1 -> b",
+ " 11:20:void a():1:1 -> b");
+
+ @Test
+ public void testCompose() throws Exception {
+ ClassNameMapper mappingForFoo = ClassNameMapper.mapperFromString(mappingFoo);
+ ClassNameMapper mappingForBar = ClassNameMapper.mapperFromString(mappingBar);
+ // TODO(b/289788048): We should be able to handle less precise input.
+ assertThrows(
+ MappingComposeException.class, () -> MappingComposer.compose(mappingForFoo, mappingForBar));
+ }
+}
