The pystache-tests script now accepts a spec test directory argument.

pystache/tests/main.py

@@ -32,10 +32,17 @@ def run_tests(sys_argv):
     try:
         # TODO: use optparse command options instead.
         project_dir = sys_argv[1]
-        sys_argv.pop()
+        sys_argv.pop(1)
     except IndexError:
         project_dir = PROJECT_DIR
 
+    try:
+        # TODO: use optparse command options instead.
+        spec_test_dir = sys_argv[1]
+        sys_argv.pop(1)
+    except IndexError:
+        spec_test_dir = SPEC_TEST_DIR
+
     if len(sys_argv) <= 1 or sys_argv[-1].startswith("-"):
         # Then no explicit module or test names were provided, so
         # auto-detect all unit tests.
@@ -43,7 +50,7 @@ def run_tests(sys_argv):
         sys_argv.extend(module_names)
 
     _PystacheTestProgram._text_doctest_dir = project_dir
-    _PystacheTestProgram._spec_test_dir = SPEC_TEST_DIR
+    _PystacheTestProgram._spec_test_dir = spec_test_dir
 
     # We pass None for the module because we do not want the unittest
     # module to resolve module names relative to a given module.

pystache/tests/test_mustachespec.py

@@ -77,14 +77,18 @@ def get_spec_tests(spec_test_dir):
             case = _deserialize_spec_test(data, path)
             cases.append(case)
 
+    # Store this as a value so that CheckSpecTestsFound is not checking
+    # a reference to cases that contains itself.
+    spec_test_count = len(cases)
+
     # This test case lets us alert the user that spec tests are missing.
     class CheckSpecTestsFound(unittest.TestCase):
 
         def runTest(self):
-            if len(cases) > 0:
+            if spec_test_count > 0:
                 return
-            raise Exception("Spec tests not found in: %s\n  "
-                "Consult the README file on how to add the Mustache spec tests." % repr(spec_test_dir))
+            raise Exception("Spec tests not found--\n  in %s\n"
+                " Consult the README file on how to add the Mustache spec tests." % repr(spec_test_dir))
 
     case = CheckSpecTestsFound()
     cases.append(case)

tox.ini

@@ -6,7 +6,9 @@
 envlist = py24,py25,py26,py27,py31,py32
 
 [testenv]
+# Change the working directory so that we don't import the pystache located
+# in the original location.
 changedir =
     {envbindir}
 commands =
-    pystache-test {toxinidir}
+    pystache-test {toxinidir} {toxinidir}/ext/spec/specs