From 5f8de423f190bbb79a62f804151bc24824fa32d8 Mon Sep 17 00:00:00 2001
From: "Matt A. Tobin" <mattatobin@localhost.localdomain>
Date: Fri, 2 Feb 2018 04:16:08 -0500
Subject: Add m-esr52 at 52.6.0

---
 memory/replace/dmd/test/scan-test.py | 83 ++++++++++++++++++++++++++++++++++++
 1 file changed, 83 insertions(+)
 create mode 100644 memory/replace/dmd/test/scan-test.py

(limited to 'memory/replace/dmd/test/scan-test.py')

diff --git a/memory/replace/dmd/test/scan-test.py b/memory/replace/dmd/test/scan-test.py
new file mode 100644
index 000000000..f031ae88f
--- /dev/null
+++ b/memory/replace/dmd/test/scan-test.py
@@ -0,0 +1,83 @@
+#! /usr/bin/env python
+#
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+'''Testing for the JSON file emitted by DMD heap scan mode when running SmokeDMD.'''
+
+from __future__ import print_function, division
+
+import argparse
+import gzip
+import json
+import sys
+
+# The DMD output version this script handles.
+outputVersion = 5
+
+
+def parseCommandLine():
+    description = '''
+Ensure that DMD heap scan mode creates the correct output when run with SmokeDMD.
+This is only for testing. Input files can be gzipped.
+'''
+    p = argparse.ArgumentParser(description=description)
+
+    p.add_argument('--clamp-contents', action='store_true',
+                   help='expect that the contents of the JSON input file have had their addresses clamped')
+
+    p.add_argument('input_file',
+                   help='a file produced by DMD')
+
+    return p.parse_args(sys.argv[1:])
+
+
+def checkScanContents(contents, expected):
+    if len(contents) != len(expected):
+        raise Exception("Expected " + str(len(expected)) + " things in contents but found " + str(len(contents)))
+
+    for i in range(len(expected)):
+        if contents[i] != expected[i]:
+            raise Exception("Expected to find " + expected[i] + " at offset " + str(i) + " but found " + contents[i])
+
+
+def main():
+    args = parseCommandLine()
+
+    # Handle gzipped input if necessary.
+    isZipped = args.input_file.endswith('.gz')
+    opener = gzip.open if isZipped else open
+
+    with opener(args.input_file, 'rb') as f:
+        j = json.load(f)
+
+    if j['version'] != outputVersion:
+        raise Exception("'version' property isn't '{:d}'".format(outputVersion))
+
+    invocation = j['invocation']
+
+    mode = invocation['mode']
+    if mode != 'scan':
+        raise Exception("bad 'mode' property: '{:s}'".format(mode))
+
+    blockList = j['blockList']
+
+    if len(blockList) != 1:
+        raise Exception("Expected only one block")
+
+    b = blockList[0]
+
+    # The expected values are based on hard-coded values in SmokeDMD.cpp.
+    if args.clamp_contents:
+        expected = ['0', '0', '0', b['addr'], b['addr']]
+    else:
+        addr = int(b['addr'], 16)
+        expected = ['123', '0', str(format(addr - 1, 'x')), b['addr'],
+                    str(format(addr + 1, 'x')), '0']
+
+    checkScanContents(b['contents'], expected)
+
+
+if __name__ == '__main__':
+    main()
-- 
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