1 files changed, 80 insertions, 0 deletions
diff --git a/python/mozlint/test/test_parser.py b/python/mozlint/test/test_parser.py
new file mode 100644
index 0000000000..2fbf26c8e5
--- /dev/null
+++ b/python/mozlint/test/test_parser.py
@@ -0,0 +1,80 @@
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+import os
+
+import mozunit
+import pytest
+
+from mozlint.errors import LinterNotFound, LinterParseError
+from mozlint.parser import Parser
+
+here = os.path.abspath(os.path.dirname(__file__))
+
+
+@pytest.fixture(scope="module")
+def parse(lintdir):
+    parser = Parser(here)
+
+    def _parse(name):
+        path = os.path.join(lintdir, name)
+        return parser(path)
+
+    return _parse
+
+
+def test_parse_valid_linter(parse):
+    lintobj = parse("string.yml")
+    assert isinstance(lintobj, list)
+    assert len(lintobj) == 1
+
+    lintobj = lintobj[0]
+    assert isinstance(lintobj, dict)
+    assert "name" in lintobj
+    assert "description" in lintobj
+    assert "type" in lintobj
+    assert "payload" in lintobj
+    assert "extensions" in lintobj
+    assert "include" in lintobj
+    assert lintobj["include"] == ["."]
+    assert set(lintobj["extensions"]) == set(["js", "jsm"])
+
+
+def test_parser_valid_multiple(parse):
+    lintobj = parse("multiple.yml")
+    assert isinstance(lintobj, list)
+    assert len(lintobj) == 2
+
+    assert lintobj[0]["name"] == "StringLinter"
+    assert lintobj[1]["name"] == "RegexLinter"
+
+
+@pytest.mark.parametrize(
+    "linter",
+    [
+        "invalid_type.yml",
+        "invalid_extension.ym",
+        "invalid_include.yml",
+        "invalid_include_with_glob.yml",
+        "invalid_exclude.yml",
+        "invalid_support_files.yml",
+        "missing_attrs.yml",
+        "missing_definition.yml",
+        "non_existing_include.yml",
+        "non_existing_exclude.yml",
+        "non_existing_support_files.yml",
+    ],
+)
+def test_parse_invalid_linter(parse, linter):
+    with pytest.raises(LinterParseError):
+        parse(linter)
+
+
+def test_parse_non_existent_linter(parse):
+    with pytest.raises(LinterNotFound):
+        parse("missing_file.lint")
+
+
+if __name__ == "__main__":
+    mozunit.main()