Uploaded Test files

venv/Lib/site-packages/nbconvert/utils/tests/test_pandoc.py

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+"""Test Pandoc module"""
+#-----------------------------------------------------------------------------
+#  Copyright (C) 2014 The IPython Development Team
+#
+#  Distributed under the terms of the BSD License.  The full license is in
+#  the file COPYING, distributed as part of this software.
+#-----------------------------------------------------------------------------
+
+#-----------------------------------------------------------------------------
+# Imports
+#-----------------------------------------------------------------------------
+import os
+import warnings
+
+from ...tests.utils import onlyif_cmds_exist
+
+from nbconvert.tests.base import TestsBase
+from .. import pandoc
+
+#-----------------------------------------------------------------------------
+# Classes and functions
+#-----------------------------------------------------------------------------
+
+class TestPandoc(TestsBase):
+    """Collection of Pandoc tests"""
+
+    def __init__(self, *args, **kwargs):
+        super().__init__(*args, **kwargs)
+        self.original_env = os.environ.copy()
+
+    def setUp(self):
+        super().setUp()
+        pandoc.check_pandoc_version._cached = None
+
+    @onlyif_cmds_exist('pandoc')
+    def test_pandoc_available(self):
+        """ Test behaviour that pandoc functions raise PandocMissing as documented """
+        pandoc.clean_cache()
+
+        os.environ["PATH"] = ""
+        with self.assertRaises(pandoc.PandocMissing):
+            pandoc.get_pandoc_version()
+        with self.assertRaises(pandoc.PandocMissing):
+            pandoc.check_pandoc_version()
+        with self.assertRaises(pandoc.PandocMissing):
+            pandoc.pandoc("", "markdown", "html")
+
+        # original_env["PATH"] should contain pandoc
+        os.environ["PATH"] = self.original_env["PATH"]
+        with warnings.catch_warnings(record=True) as w:
+            pandoc.get_pandoc_version()
+            pandoc.check_pandoc_version()
+            pandoc.pandoc("", "markdown", "html")
+        self.assertEqual(w, [])
+
+    @onlyif_cmds_exist('pandoc')
+    def test_minimal_version(self):
+        original_minversion = pandoc._minimal_version
+
+        pandoc._minimal_version = "120.0"
+        with warnings.catch_warnings(record=True) as w:
+            # call it twice to verify the cached value is used
+            assert not pandoc.check_pandoc_version()
+            assert not pandoc.check_pandoc_version()
+        # only one warning after two calls, due to cache
+        self.assertEqual(len(w), 1)
+        # clear cache
+        pandoc.check_pandoc_version._cached = None
+        pandoc._minimal_version = pandoc.get_pandoc_version()
+        assert pandoc.check_pandoc_version()
+
+
+def pandoc_function_raised_missing(f, *args, **kwargs):
+    try:
+        f(*args, **kwargs)
+    except pandoc.PandocMissing:
+        return True
+    else:
+        return False