Move arcz_to_arcs to misc so we can use it elsewhere

1 files changed, 10 insertions, 1 deletions

diff --git a/tests/test_misc.py b/tests/test_misc.py
index bde35b66..09fb5c4d 100644
--- a/tests/test_misc.py
+++ b/tests/test_misc.py
@@ -5,7 +5,7 @@
 
 import pytest
 
-from coverage.misc import contract, dummy_decorator_with_args, file_be_gone
+from coverage.misc import arcz_to_arcs, contract, dummy_decorator_with_args, file_be_gone
 from coverage.misc import Hasher, one_of, substitute_variables
 from coverage.misc import CoverageException
 
@@ -152,3 +152,12 @@ def test_substitute_variables_errors(text):
         substitute_variables(text, VARS)
     assert text in str(exc_info.value)
     assert "Variable NOTHING is undefined" in str(exc_info.value)
+
+
+@pytest.mark.parametrize("arcz, arcs", [
+    (".1 12 2.", [(-1, 1), (1, 2), (2, -1)]),
+    ("-11 12 2-5", [(-1, 1), (1, 2), (2, -5)]),
+    ("-QA CB IT Z-A", [(-26, 10), (12, 11), (18, 29), (35, -10)]),
+])
+def test_arcz_to_arcs(arcz, arcs):
+    assert arcz_to_arcs(arcz) == arcs