1 files changed, 9 insertions, 0 deletions
diff --git a/src/test/java/org/zwobble/mammoth/tests/docx/ContentTypesXmlTests.java b/src/test/java/org/zwobble/mammoth/tests/docx/ContentTypesXmlTests.java
index 51273de..2fc0692 100644
--- a/src/test/java/org/zwobble/mammoth/tests/docx/ContentTypesXmlTests.java
+++ b/src/test/java/org/zwobble/mammoth/tests/docx/ContentTypesXmlTests.java
@@ -66,4 +66,13 @@ public class ContentTypesXmlTests {
             Optional.of("image/tiff"),
             contentTypes.findContentType("word/media/hat.tiff"));
     }
+
+    @Test
+    public void fallbackContentTypesAreCaseInsensitive() {
+        XmlElement element = element("content-types:Types");
+        ContentTypes contentTypes = readContentTypesXmlElement(element);
+        assertEquals(
+            Optional.of("image/png"),
+            contentTypes.findContentType("word/media/hat.PnG"));
+    }
 }