1 files changed, 28 insertions, 0 deletions
diff --git a/tools/lint/test/test_yaml.py b/tools/lint/test/test_yaml.py
new file mode 100644
index 0000000000..63b678d152
--- /dev/null
+++ b/tools/lint/test/test_yaml.py
@@ -0,0 +1,28 @@
+import mozunit
+
+LINTER = "yaml"
+
+
+def test_basic(lint, paths):
+    results = lint(paths())
+
+    assert len(results) == 3
+
+    assert "line too long (122 > 80 characters)" in results[0].message
+    assert results[0].level == "error"
+    assert "bad.yml" in results[0].relpath
+    assert results[0].lineno == 3
+
+    assert "wrong indentation: expected 4 but found 8" in results[1].message
+    assert results[1].level == "error"
+    assert "bad.yml" in results[1].relpath
+    assert results[0].lineno == 3
+
+    assert "could not find expected" in results[2].message
+    assert results[2].level == "error"
+    assert "bad.yml" in results[2].relpath
+    assert results[2].lineno == 9
+
+
+if __name__ == "__main__":
+    mozunit.main()