1 files changed, 25 insertions, 0 deletions
diff --git a/tests/test_debug.py b/tests/test_debug.py
new file mode 100644
index 00000000..f3ae31fb
--- /dev/null
+++ b/tests/test_debug.py
@@ -0,0 +1,25 @@
+"""Tests of coverage/debug.py"""
+
+from coverage.debug import info_formatter
+from tests.coveragetest import CoverageTest
+
+
+class InfoFormatterTest(CoverageTest):
+    """Tests of misc.info_formatter."""
+
+    def test_info_formatter(self):
+        lines = list(info_formatter([
+            ('x', 'hello there'),
+            ('very long label', ['one element']),
+            ('regular', ['abc', 'def', 'ghi', 'jkl']),
+            ('nothing', []),
+        ]))
+        self.assertEqual(lines, [
+            '              x: hello there',
+            'very long label: one element',
+            '        regular: abc',
+            '                 def',
+            '                 ghi',
+            '                 jkl',
+            '        nothing: -none-',
+        ])