Test scripts now work with and without source.

MANIFEST.in

@@ -2,6 +2,7 @@ include LICENSE
 include HISTORY.rst
 include README.rst
 include tox.ini
+include test_pystache.py
 # You cannot use package_data, for example, to include data files in a
 # source distribution when using Distribute.
 recursive-include pystache/tests *.mustache *.txt

pystache/tests/main.py

@@ -19,6 +19,11 @@ from pystache.tests.doctesting import get_doctests
 from pystache.tests.spectesting import get_spec_tests
 
 
+# If this command option is present, then the spec test and doctest directories
+# will be inserted if not provided.
+FROM_SOURCE_OPTION = "--from-source"
+
+
 def run_tests(sys_argv):
     """
     Run all tests in the project.
@@ -28,27 +33,41 @@ def run_tests(sys_argv):
       sys_argv: a reference to sys.argv.
 
     """
+    should_source_exist = False
+    spec_test_dir = None
+    project_dir = None
+
+    if len(sys_argv) > 1 and sys_argv[1] == FROM_SOURCE_OPTION:
+        should_source_exist = True
+        sys_argv.pop(1)
+
+    # TODO: use logging module
+    print "pystache: running tests: expecting source: %s" % should_source_exist
+
     try:
         # TODO: use optparse command options instead.
-        project_dir = sys_argv[1]
+        spec_test_dir = sys_argv[1]
         sys_argv.pop(1)
     except IndexError:
-        project_dir = PROJECT_DIR
+        if should_source_exist:
+            spec_test_dir = SPEC_TEST_DIR
 
     try:
         # TODO: use optparse command options instead.
-        spec_test_dir = sys_argv[1]
+        project_dir = sys_argv[1]
         sys_argv.pop(1)
     except IndexError:
-        spec_test_dir = SPEC_TEST_DIR
+        if should_source_exist:
+            project_dir = PROJECT_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.
         module_names = _discover_test_modules(PACKAGE_DIR)
         sys_argv.extend(module_names)
-        # Add the current module for unit tests contained here.
-        sys_argv.append(__name__)
+        if project_dir is not None:
+            # Add the current module for unit tests contained here.
+            sys_argv.append(__name__)
 
     _PystacheTestProgram._text_doctest_dir = project_dir
     _PystacheTestProgram._spec_test_dir = spec_test_dir
@@ -123,10 +142,12 @@ class _PystacheTestProgram(TestProgram):
         #   http://docs.python.org/library/unittest.html#unittest.TestSuite
         tests = self.test
 
-        doctest_suites = get_doctests(self._text_doctest_dir)
-        tests.addTests(doctest_suites)
+        if self._text_doctest_dir is not None:
+            doctest_suites = get_doctests(self._text_doctest_dir)
+            tests.addTests(doctest_suites)
 
-        spec_testcases = get_spec_tests(self._spec_test_dir)
-        tests.addTests(spec_testcases)
+        if self._spec_test_dir is not None:
+            spec_testcases = get_spec_tests(self._spec_test_dir)
+            tests.addTests(spec_testcases)
 
         TestProgram.runTests(self)

setup.py

@@ -2,7 +2,7 @@
 # coding: utf-8
 
 """
-This script supports distributing Pystache and testing it from a source distribution.
+This script supports publishing Pystache to PyPI.
 
 Below are instructions to pystache maintainers on how to push a new
 version of pystache to PyPI--

test_pystache.py

@@ -15,7 +15,16 @@ in Python 2.4:
 
 """
 
-from pystache.commands.test import main
+import sys
+
+from pystache.commands import test
+from pystache.tests.main import FROM_SOURCE_OPTION
+
+
+def main(sys_argv=sys.argv):
+    sys.argv.insert(1, FROM_SOURCE_OPTION)
+    test.main()
+
 
 if __name__=='__main__':
     main()

tox.ini

@@ -3,7 +3,7 @@
 #   http://pypi.python.org/pypi/tox
 #
 [tox]
-envlist = py24,py25,py26,py27,py27-yaml,py31,py32
+envlist = py24,py25,py26,py27,py27-yaml,py27-noargs,py31,py32
 
 [testenv]
 # Change the working directory so that we don't import the pystache located
@@ -11,13 +11,24 @@ envlist = py24,py25,py26,py27,py27-yaml,py31,py32
 changedir =
     {envbindir}
 commands =
-    pystache-test {toxinidir} {toxinidir}/ext/spec/specs
+	pystache-test {toxinidir}/ext/spec/specs {toxinidir}
 
 # Check that the spec tests work with PyYAML.
 [testenv:py27-yaml]
+basepython =
+    python2.7
 deps =
     PyYAML
 changedir =
     {envbindir}
 commands =
-    pystache-test {toxinidir} {toxinidir}/ext/spec/specs
+    pystache-test {toxinidir}/ext/spec/specs {toxinidir}
+
+# Check that pystache-test works from an install with no arguments.
+[testenv:py27-noargs]
+basepython =
+    python2.7
+changedir =
+    {envbindir}
+commands =
+    pystache-test