2 files changed, 11 insertions, 8 deletions
diff --git a/echo.py b/echo.py
index 7a5f186..0d108f3 100644
--- a/echo.py
+++ b/echo.py
@@ -1,9 +1,6 @@
 import subprocess
 
-def assertEqual(a, b):
-    if a != b:
-        raise Exception(
-            'expected {!r} == {!r}, but was disappointed'.format(a, b))
+import fable
 
 def _run_echo(ctx, args):
     cmd = '/bin/echo'
@@ -23,13 +20,13 @@ def run_echo_with_args(ctx, args=None):
 
 def exit_code_is_zero(ctx, exit_code=None):
     exit_code = int(exit_code)
-    assertEqual(ctx['exit_code'], exit_code)
+    fable.assertEqual(ctx['exit_code'], exit_code)
 
 def stdout_is_a_newline(ctx):
-    assertEqual(ctx['stdout'], '\n')
+    fable.assertEqual(ctx['stdout'], '\n')
 
 def stdout_is_text(ctx, text=None):
-    assertEqual(ctx['stdout'], text + '\n')
+    fable.assertEqual(ctx['stdout'], text + '\n')
 
 def stderr_is_empty(ctx):
-    assertEqual(ctx['stderr'], '')
+    fable.assertEqual(ctx['stderr'], '')
diff --git a/fable.py b/fable.py
index 71c949a..18ac72d 100644
--- a/fable.py
+++ b/fable.py
@@ -30,3 +30,9 @@ class Run:
 
     def end(self):
         sys.stdout.write('OK: {}\n'.format(self._name))
+
+
+def assertEqual(a, b):
+    if a != b:
+        raise Exception(
+            'expected {!r} == {!r}, but was disappointed'.format(a, b))