diff --git a/cadquery/freecad_impl/importers.py b/cadquery/freecad_impl/importers.py
index fd47742..55d67fe 100644
--- a/cadquery/freecad_impl/importers.py
+++ b/cadquery/freecad_impl/importers.py
@@ -40,7 +40,7 @@ def importShape(importType,fileName):
 
 	#Check to see what type of file we're working with
 	if importType == ImportTypes.STEP:
-		raise RuntimeError("Failed on purpose.")
+		importStep(fileName)
 
 #Loads a STEP file into a CQ object
 def importStep(self,fileName):
diff --git a/tests/TestImporters.py b/tests/TestImporters.py
index 5af0f9b..6ede15f 100644
--- a/tests/TestImporters.py
+++ b/tests/TestImporters.py
@@ -18,28 +18,29 @@ else:
 
 class TestImporters(BaseTest):
 
-	def importBox(importType,fileName):
+	def importBox(self, importType,fileName):
 		"""
 		Exports a simple box to a STEP file and then imports it again
 		:param importType: The type of file we're importing (STEP, STL, etc)
 		:param fileName: The path and name of the file to write to
 		"""
 		#We're importing a STEP file
-		if importType == ImportTypes.STEP:
+		if importType == importers.ImportTypes.STEP:
 			#We first need to build a simple shape to export
-			shape = Workplane("XY").box(1,2,3).val
+			shape = Workplane("XY").box(1,2,3).val()
 
 			#Export the shape to a temporary file
 			shape.exportStep(fileName)
 
 			# Reimport the shape from the new STEP file
-			importedShape = importShape(importType,fileName)
+			importedShape = importers.importShape(importType,fileName)
 
 	def testSTEP(self):
 		"""
 		Tests STEP file import
 		"""
-		importBox(ImportTypes.STEP, OUTDIR + "/tempSTEP.step")
+		self.importBox(importers.ImportTypes.STEP, OUTDIR + "/tempSTEP.step")
 
 if __name__ == '__main__':
-	testSTEP()
+	import unittest
+	unittest.main()