Test retracing R8-processed R8.
Change-Id: Id8257d84073c1ea55155bb1b83a51ee41f6e66fd
diff --git a/tools/test_self_retrace.py b/tools/test_self_retrace.py
new file mode 100755
index 0000000..08b97db
--- /dev/null
+++ b/tools/test_self_retrace.py
@@ -0,0 +1,63 @@
+#!/usr/bin/env python
+# Copyright (c) 2018, 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.
+
+import gradle
+import os
+import subprocess
+import sys
+import utils
+
+RETRACE_JAR = os.path.join(
+ utils.THIRD_PARTY,
+ 'proguard',
+ 'proguard6.0.1',
+ 'lib',
+ 'retrace.jar')
+
+EXCEPTION_LINE = 'Intentional exception for testing retrace.'
+EXPECTED_LINES = [
+ 'com.android.tools.r8.utils.SelfRetraceTest.foo3(SelfRetraceTest.java:13)',
+ 'com.android.tools.r8.utils.SelfRetraceTest.foo2(SelfRetraceTest.java:17)',
+ 'com.android.tools.r8.utils.SelfRetraceTest.foo1(SelfRetraceTest.java:21)',
+ 'com.android.tools.r8.utils.SelfRetraceTest.test(SelfRetraceTest.java:26)',
+ 'com.android.tools.r8.R8.run(R8.java:',
+]
+
+def main():
+ gradle.RunGradle(['r8lib'])
+
+ # Run 'r8 --help' which throws an exception.
+ cmd = ['java','-cp', utils.R8LIB_JAR, 'com.android.tools.r8.R8', '--help']
+ os.environ["R8_THROW_EXCEPTION_FOR_TESTING_RETRACE"] = "1"
+ utils.PrintCmd(cmd)
+ p = subprocess.Popen(cmd, stderr=subprocess.PIPE)
+ _, stacktrace = p.communicate()
+ assert(p.returncode != 0)
+ assert(EXCEPTION_LINE in stacktrace)
+ # r8lib must be minified, original class names must not be present.
+ assert('SelfRetraceTest' not in stacktrace)
+
+ # Run the retrace tool.
+ cmd = ['java', '-jar', RETRACE_JAR, utils.R8LIB_JAR + ".map"]
+ utils.PrintCmd(cmd)
+ p = subprocess.Popen(cmd, stdin=subprocess.PIPE, stdout=subprocess.PIPE)
+ retrace_stdout, _ = p.communicate(stacktrace)
+ assert p.returncode == 0
+ retrace_lines = retrace_stdout.splitlines()
+ line_index = -1
+ for line in retrace_lines:
+ if line_index < 0:
+ if 'java.lang.RuntimeException' in line:
+ assert(EXCEPTION_LINE in line)
+ line_index = 0;
+ else:
+ assert EXPECTED_LINES[line_index] in line
+ line_index += 1
+ if line_index >= len(EXPECTED_LINES):
+ break
+ assert(line_index >= 0)
+
+if __name__ == '__main__':
+ sys.exit(main())
