py2 and py3

test/runjsontests.py

@@ -1,12 +1,30 @@
 from __future__ import print_function
+from __future__ import unicode_literals
+from io import open
+from glob import glob
 import sys
 import os
 import os.path
-from glob import glob
 import optparse
 
 VALGRIND_CMD = 'valgrind --tool=memcheck --leak-check=yes --undef-value-errors=yes '
 
+def getStatusOutput(cmd):
+    """
+    Return int, unicode (for both Python 2 and 3).
+    Note: os.popen().close() would return None for 0.
+    """
+    pipe = os.popen(cmd)
+    process_output = pipe.read()
+    try:
+        # We have been using os.popen(). When we read() the result
+        # we get 'str' (bytes) in py2, and 'str' (unicode) in py3.
+        # Ugh! There must be a better way to handle this.
+        process_output = process_output.decode('utf-8')
+    except AttributeError:
+        pass  # python3
+    status = pipe.close()
+    return status, process_output
 def compareOutputs( expected, actual, message ):
     expected = expected.strip().replace('\r','').split('\n')
     actual = actual.strip().replace('\r','').split('\n')
@@ -54,21 +72,20 @@ def runAllTests( jsontest_executable_path, input_dir = None,
         is_json_checker_test = (input_path in test_jsonchecker) or expect_failure
         print('TESTING:', input_path, end=' ')
         options = is_json_checker_test and '--json-checker' or ''
-        pipe = os.popen( '%s%s %s "%s"' % (
+        cmd = '%s%s %s "%s"' % (
             valgrind_path, jsontest_executable_path, options,
-            input_path) )
+            input_path)
-        process_output = pipe.read()
+        status, process_output = getStatusOutput(cmd)
-        status = pipe.close()
         if is_json_checker_test:
             if expect_failure:
-                if status is None:
+                if not status:
                     print('FAILED')
                     failed_tests.append( (input_path, 'Parsing should have failed:\n%s' %
                                           safeReadFile(input_path)) )
                 else:
                     print('OK')
             else:
-                if status is not None:
+                if status:
                     print('FAILED')
                     failed_tests.append( (input_path, 'Parsing failed:\n' + process_output) )
                 else: