diff --git a/IPython/nbconvert/transformers/tests/base.py b/IPython/nbconvert/transformers/tests/base.py
new file mode 100644
index 0000000..7ba15f4
--- /dev/null
+++ b/IPython/nbconvert/transformers/tests/base.py
@@ -0,0 +1,43 @@
+"""
+Module with utility functions for transformer tests
+"""
+
+#-----------------------------------------------------------------------------
+# Copyright (c) 2013, the IPython Development Team.
+#
+# Distributed under the terms of the Modified BSD License.
+#
+# The full license is in the file COPYING.txt, distributed with this software.
+#-----------------------------------------------------------------------------
+
+#-----------------------------------------------------------------------------
+# Imports
+#-----------------------------------------------------------------------------
+
+from ...tests.base import TestsBase
+
+from IPython.nbformat import current as nbformat
+
+#-----------------------------------------------------------------------------
+# Class
+#-----------------------------------------------------------------------------
+
+class TransformerTestsBase(TestsBase):
+    """Contains test functions transformer tests"""
+
+
+    def build_notebook(self):
+        """Build a notebook in memory for use with transformer tests"""
+
+        outputs = [nbformat.new_output(output_type="stream", stream="stdout", output_text="a"),
+                   nbformat.new_output(output_type="text", output_text="b"),
+                   nbformat.new_output(output_type="stream", stream="stdout", output_text="c"),
+                   nbformat.new_output(output_type="stream", stream="stdout", output_text="d"),
+                   nbformat.new_output(output_type="stream", stream="stderr", output_text="e"),
+                   nbformat.new_output(output_type="stream", stream="stderr", output_text="f")]
+        
+        cells=[nbformat.new_code_cell(input="test",
+            prompt_number=1,outputs=outputs)]
+        worksheets = [nbformat.new_worksheet(name="worksheet1", cells=cells)]
+
+        return nbformat.new_notebook(name="notebook1", worksheets=worksheets)
diff --git a/IPython/nbconvert/transformers/tests/test_coalescestreams.py b/IPython/nbconvert/transformers/tests/test_coalescestreams.py
index 25d461f..1f69f93 100644
--- a/IPython/nbconvert/transformers/tests/test_coalescestreams.py
+++ b/IPython/nbconvert/transformers/tests/test_coalescestreams.py
@@ -14,32 +14,19 @@ Module with tests for the coalescestreams transformer
 # Imports
 #-----------------------------------------------------------------------------
 
-from ...tests.base import TestsBase
+from .base import TransformerTestsBase
 from ..coalescestreams import coalesce_streams
 
-from IPython.nbformat import current as nbformat
 
 #-----------------------------------------------------------------------------
 # Class
 #-----------------------------------------------------------------------------
 
-class TestCoalesceStreams(TestsBase):
+class TestCoalesceStreams(TransformerTestsBase):
     """Contains test functions for coalescestreams.py"""
 
-
-    def build_notebook(self):
-        outputs = [nbformat.new_output(output_type="stream", stream="stdout", output_text="a"),
-                   nbformat.new_output(output_type="text", output_text="b"),
-                   nbformat.new_output(output_type="stream", stream="stdout", output_text="c"),
-                   nbformat.new_output(output_type="stream", stream="stdout", output_text="d"),
-                   nbformat.new_output(output_type="stream", stream="stderr", output_text="e"),
-                   nbformat.new_output(output_type="stream", stream="stderr", output_text="f")]
-        cells=[nbformat.new_code_cell(input="test",
-            prompt_number=1,outputs=outputs)]
-        worksheets = [nbformat.new_worksheet(name="worksheet1", cells=cells)]
-        return nbformat.new_notebook(name="notebook1", worksheets=worksheets)
-
     def test_coalesce_streams(self):
+        """coalesce_streams transformer output test"""
         nb, res = coalesce_streams(self.build_notebook(), {})
         self.assertEqual(nb.worksheets[0].cells[0].outputs[0].text, "a")
         self.assertEqual(nb.worksheets[0].cells[0].outputs[1].output_type, "text")
diff --git a/IPython/nbconvert/transformers/tests/test_csshtmlheader.py b/IPython/nbconvert/transformers/tests/test_csshtmlheader.py
new file mode 100644
index 0000000..237e8f6
--- /dev/null
+++ b/IPython/nbconvert/transformers/tests/test_csshtmlheader.py
@@ -0,0 +1,37 @@
+"""
+Module with tests for the csshtmlheader transformer
+"""
+
+#-----------------------------------------------------------------------------
+# Copyright (c) 2013, the IPython Development Team.
+#
+# Distributed under the terms of the Modified BSD License.
+#
+# The full license is in the file COPYING.txt, distributed with this software.
+#-----------------------------------------------------------------------------
+
+#-----------------------------------------------------------------------------
+# Imports
+#-----------------------------------------------------------------------------
+
+from .base import TransformerTestsBase
+from ..csshtmlheader import CSSHTMLHeaderTransformer
+
+
+#-----------------------------------------------------------------------------
+# Class
+#-----------------------------------------------------------------------------
+
+class TestCSSHTMLHeader(TransformerTestsBase):
+    """Contains test functions for csshtmlheader.py"""
+
+    def test_constructor(self):
+        """Can a CSSHTMLHeaderTransformer be constructed?"""
+        CSSHTMLHeaderTransformer()
+    
+
+    def test_output(self):
+        """Test the output of the CSSHTMLHeaderTransformer"""
+        nb, res = CSSHTMLHeaderTransformer()(self.build_notebook(), {})
+        assert 'inlining' in res
+        assert 'css' in res.inlining 
\ No newline at end of file