re #14, exception referring to the bug in github.

exampleproject/tests/print1250r.py

@@ -0,0 +1,3 @@
+# -- coding:cp1250 --
+
+print("š")

exampleproject/tests/test_a.py

@@ -18,8 +18,6 @@ def test_add_and_multiply():
 
 def test_error3():
     pass
-    pass
-    raise Exception('error1')
 
 
 @pytest.mark.xfail(True, reason="Division by zero not implemented yet.")

exampleproject/tests/test_non_utf_crash.py

@@ -0,0 +1,2 @@
+def test_basic():
+    import print1250r

testmon/testmon_core.py

@@ -150,8 +150,13 @@ def get_variant_inifile(inifile):
 
 def read_file_with_checksum(absfilename):
     hasher = hashlib.sha1()
-    with open(absfilename) as afile:
-        source = afile.read()
+    try:
+        with open(absfilename) as afile:
+            source = afile.read()
+    except UnicodeDecodeError:
+        raise Exception("""You are hitting https://github.com/tarpas/pytest-testmon/issues/14"""
+        """ when reading {}""".format(absfilename))
+
     hasher.update(encode(source))
     return source, hasher.hexdigest()