1 files changed, 75 insertions, 0 deletions
diff --git a/Lib/packaging/tests/test_markers.py b/Lib/packaging/tests/test_markers.py
new file mode 100644
index 0000000000..a494c6b4f3
--- /dev/null
+++ b/Lib/packaging/tests/test_markers.py
@@ -0,0 +1,75 @@
+"""Tests for packaging.markers."""
+import os
+import sys
+import platform
+from packaging.markers import interpret
+
+from packaging.tests import unittest
+from packaging.tests.support import LoggingCatcher
+
+
+class MarkersTestCase(LoggingCatcher,
+                      unittest.TestCase):
+
+    def test_interpret(self):
+        sys_platform = sys.platform
+        version = sys.version.split()[0]
+        os_name = os.name
+        platform_version = platform.version()
+        platform_machine = platform.machine()
+        platform_python_implementation = platform.python_implementation()
+
+        self.assertTrue(interpret("sys.platform == '%s'" % sys_platform))
+        self.assertTrue(interpret(
+            "sys.platform == '%s' and python_full_version == '%s'" %
+            (sys_platform, version)))
+        self.assertTrue(interpret("'%s' == sys.platform" % sys_platform))
+        self.assertTrue(interpret('os.name == "%s"' % os_name))
+        self.assertTrue(interpret(
+            'platform.version == "%s" and platform.machine == "%s"' %
+            (platform_version, platform_machine)))
+        self.assertTrue(interpret('platform.python_implementation == "%s"' %
+            platform_python_implementation))
+
+        # stuff that need to raise a syntax error
+        ops = ('os.name == os.name', 'os.name == 2', "'2' == '2'",
+               'okpjonon', '', 'os.name ==', 'python_version == 2.4')
+        for op in ops:
+            self.assertRaises(SyntaxError, interpret, op)
+
+        # combined operations
+        OP = 'os.name == "%s"' % os_name
+        FALSEOP = 'os.name == "buuuu"'
+        AND = ' and '
+        OR = ' or '
+        self.assertTrue(interpret(OP + AND + OP))
+        self.assertTrue(interpret(OP + AND + OP + AND + OP))
+        self.assertTrue(interpret(OP + OR + OP))
+        self.assertTrue(interpret(OP + OR + FALSEOP))
+        self.assertTrue(interpret(OP + OR + OP + OR + FALSEOP))
+        self.assertTrue(interpret(OP + OR + FALSEOP + OR + FALSEOP))
+        self.assertTrue(interpret(FALSEOP + OR + OP))
+        self.assertFalse(interpret(FALSEOP + AND + FALSEOP))
+        self.assertFalse(interpret(FALSEOP + OR + FALSEOP))
+
+        # other operators
+        self.assertTrue(interpret("os.name != 'buuuu'"))
+        self.assertTrue(interpret("python_version > '1.0'"))
+        self.assertTrue(interpret("python_version < '5.0'"))
+        self.assertTrue(interpret("python_version <= '5.0'"))
+        self.assertTrue(interpret("python_version >= '1.0'"))
+        self.assertTrue(interpret("'%s' in os.name" % os_name))
+        self.assertTrue(interpret("'buuuu' not in os.name"))
+        self.assertTrue(interpret(
+            "'buuuu' not in os.name and '%s' in os.name" % os_name))
+
+        # execution context
+        self.assertTrue(interpret('python_version == "0.1"',
+                                  {'python_version': '0.1'}))
+
+
+def test_suite():
+    return unittest.makeSuite(MarkersTestCase)
+
+if __name__ == '__main__':
+    unittest.main(defaultTest='test_suite')