Add a unit test for Locator.find_file().

pystache/tests/data/locator/template.txt

+Test template file

pystache/tests/test_locator.py

@@ -19,6 +19,9 @@ from pystache.tests.common import DATA_DIR, EXAMPLES_DIR, AssertExceptionMixin
 from pystache.tests.data.views import SayHello
 
 
+LOCATOR_DATA_DIR = os.path.join(DATA_DIR, 'locator')
+
+
 class LocatorTests(unittest.TestCase, AssertExceptionMixin):
 
     def _locator(self):
@@ -87,6 +90,13 @@ class LocatorTests(unittest.TestCase, AssertExceptionMixin):
 
         self.assertEqual(locator.make_file_name('foo', template_extension='bar'), 'foo.bar')
 
+    def test_find_file(self):
+        locator = Locator()
+        path = locator.find_file('template.txt', [LOCATOR_DATA_DIR])
+
+        expected_path = os.path.join(LOCATOR_DATA_DIR, 'template.txt')
+        self.assertEqual(path, expected_path)
+
     def test_find_name(self):
         locator = Locator()
         path = locator.find_name(search_dirs=[EXAMPLES_DIR], template_name='simple')
@@ -107,7 +117,7 @@ class LocatorTests(unittest.TestCase, AssertExceptionMixin):
         locator = Locator()
 
         dir1 = DATA_DIR
-        dir2 = os.path.join(DATA_DIR, 'locator')
+        dir2 = LOCATOR_DATA_DIR
 
         self.assertTrue(locator.find_name(search_dirs=[dir1], template_name='duplicate'))
         self.assertTrue(locator.find_name(search_dirs=[dir2], template_name='duplicate'))