1 files changed, 28 insertions, 0 deletions
diff --git a/tests/format/invalid_keys.py b/tests/format/invalid_keys.py
new file mode 100644
index 000000000..861cfeabd
--- /dev/null
+++ b/tests/format/invalid_keys.py
@@ -0,0 +1,28 @@
+# Pylint doesn't play well with fixtures and dependency injection from pytest
+# pylint: disable=redefined-outer-name
+
+import os
+import pytest
+from buildstream._exceptions import ErrorDomain, LoadErrorReason
+from buildstream.testing.runcli import cli  # pylint: disable=unused-import
+
+# Project directory
+DATA_DIR = os.path.join(
+    os.path.dirname(os.path.realpath(__file__)),
+    'invalid-keys'
+)
+
+
+@pytest.mark.datafiles(DATA_DIR)
+@pytest.mark.parametrize(("element", "location"), [
+    ("no-path-specified.bst", "line 4 column 4"),
+    ("optional-source.bst", "line 6 column 10"),
+    ("included-source.bst", "line 4 column 4"),
+])
+def test_compositied_node_fails_usefully(cli, datafiles, element, location):
+    project = str(datafiles)
+    result = cli.run(project=project, args=['show', element])
+    result.assert_main_error(ErrorDomain.LOAD, LoadErrorReason.INVALID_DATA)
+
+    assert "synthetic node" not in result.stderr
+    assert "{} [{}]: Dictionary did not contain expected key 'path'".format(element, location) in result.stderr