3 files changed, 109 insertions, 1 deletions
diff --git a/tests/docx/body_xml_tests.py b/tests/docx/body_xml_tests.py
index 91be80f..d3b552b 100644
--- a/tests/docx/body_xml_tests.py
+++ b/tests/docx/body_xml_tests.py
@@ -364,6 +364,39 @@ class ReadXmlElementTests(object):
         assert_equal("image/x-emf", result.value[0].content_type)
         expected_warning = results.warning("Image of type image/x-emf is unlikely to display in web browsers")
         assert_equal([expected_warning], result.messages)
+        
+        
+    @istest
+    @funk.with_context
+    def can_read_linked_pictures(self, context):
+        drawing_element = _create_inline_image(
+            blip=_linked_blip("rId5"),
+            description="It's a hat",
+        )
+        
+        image_bytes = b"Not an image at all!"
+        
+        relationships = Relationships({
+            "rId5": Relationship(target="file:///media/hat.png")
+        })
+        
+        files = context.mock()
+        funk.allows(files).open("file:///media/hat.png").returns(io.BytesIO(image_bytes))
+        
+        content_types = context.mock()
+        funk.allows(content_types).find_content_type("file:///media/hat.png").returns("image/png")
+        
+        image = _read_and_get_document_xml_element(
+            drawing_element,
+            content_types=content_types,
+            relationships=relationships,
+            files=files,
+        )[0]
+        assert_equal(documents.Image, type(image))
+        assert_equal("It's a hat", image.alt_text)
+        assert_equal("image/png", image.content_type)
+        with image.open() as image_file:
+            assert_equal(image_bytes, image_file.read())
     
     @istest
     def footnote_reference_has_id_read(self):
@@ -494,4 +527,10 @@ def _create_image_elements(description, blip):
     ]
 
 def _embedded_blip(relationship_id):
-    return xml_element("a:blip", {"r:embed": relationship_id})
+    return _blip({"r:embed": relationship_id})
+
+def _linked_blip(relationship_id):
+    return _blip({"r:link": relationship_id})
+
+def _blip(attributes):
+    return xml_element("a:blip", attributes)
diff --git a/tests/docx/content_types_xml_tests.py b/tests/docx/content_types_xml_tests.py
index 9df8569..8b104d9 100644
--- a/tests/docx/content_types_xml_tests.py
+++ b/tests/docx/content_types_xml_tests.py
@@ -36,3 +36,47 @@ def content_type_is_based_on_override_if_present():
         "image/hat",
         content_types.find_content_type("word/media/hat.png"),
     )
+
+
+@istest
+def fallback_content_types_have_common_image_types():
+    element = xml_element("content-types:Types", {}, [])
+    content_types = read_content_types_xml_element(element)
+    assert_equal(
+        "image/png",
+        content_types.find_content_type("word/media/hat.png"),
+    )
+    assert_equal(
+        "image/gif",
+        content_types.find_content_type("word/media/hat.gif"),
+    )
+    assert_equal(
+        "image/jpeg",
+        content_types.find_content_type("word/media/hat.jpg"),
+    )
+    assert_equal(
+        "image/jpeg",
+        content_types.find_content_type("word/media/hat.jpeg"),
+    )
+    assert_equal(
+        "image/bmp",
+        content_types.find_content_type("word/media/hat.bmp"),
+    )
+    assert_equal(
+        "image/tiff",
+        content_types.find_content_type("word/media/hat.tif"),
+    )
+    assert_equal(
+        "image/tiff",
+        content_types.find_content_type("word/media/hat.tiff"),
+    )
+
+
+@istest
+def fallback_content_types_are_case_insensitive():
+    element = xml_element("content-types:Types", {}, [])
+    content_types = read_content_types_xml_element(element)
+    assert_equal(
+        "image/png",
+        content_types.find_content_type("word/media/hat.PnG"),
+    )
diff --git a/tests/docx/files_tests.py b/tests/docx/files_tests.py
new file mode 100644
index 0000000..c1e15dc
--- /dev/null
+++ b/tests/docx/files_tests.py
@@ -0,0 +1,25 @@
+from nose.tools import istest, assert_equal
+
+from mammoth.docx.files import Files
+from ..testing import test_path
+
+
+@istest
+def can_open_files_with_file_uri():
+    path = test_path("tiny-picture.png")
+    files = Files(None)
+    with files.open("file:///" + path) as image_file:
+        contents = image_file.read()
+        assert_equal(bytes, type(contents))
+        with open(path, "rb") as source_file:
+            assert_equal(source_file.read(), contents)
+
+
+@istest
+def can_open_files_with_relative_uri():
+    files = Files(test_path(""))
+    with files.open("tiny-picture.png") as image_file:
+        contents = image_file.read()
+        assert_equal(bytes, type(contents))
+        with open(test_path("tiny-picture.png"), "rb") as source_file:
+            assert_equal(source_file.read(), contents)