Add test for valid schema

Makefile

@@ -25,8 +25,8 @@ help:     ## Show this help.
 	 @egrep -h '\s##\s' $(MAKEFILE_LIST) | awk 'BEGIN {FS = ":.*?## "}; {printf "\033[36m  %-30s\033[0m %s\n", $$1, $$2}'
 
 .PHONY: tests
-test: ## Run all document related checks found in tox: pytest, jsonformat, validate
-	tox run -e pytest,jsonformat,validate
+test: ## Run all document related checks found in tox: pytest, jsonformat, validate, jsonschema
+	tox run -e pytest,jsonformat,validate,jsonschema
 
 .PHONY: generate_docs
 generate_docs: ## Generate the Markdown files based on the YAML definitions

test_jsonschema.py

@@ -0,0 +1,40 @@
+# Copyright 2022 Axis Communications AB.
+# For a full list of individual contributors, please see the commit history.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+import json
+import subprocess
+
+import jsonschema
+import pytest
+
+
+@pytest.mark.parametrize(
+    "filename",
+    subprocess.check_output(["git", "ls-files", "--exclude-standard", "schemas/*.json"])
+    .decode("utf-8")
+    .splitlines(),
+)
+def test_json_schema(filename):
+    with open(filename) as input_file:
+        data = input_file.read()
+
+    event_schema = json.loads(data)
+    stricter_metaschema = dict(
+        jsonschema.Draft4Validator.META_SCHEMA, additionalProperties=False
+    )
+    StrictDraft4Validator = jsonschema.validators.create(
+        stricter_metaschema, jsonschema.Draft4Validator.VALIDATORS, "StrictDraft4"
+    )
+    StrictDraft4Validator.check_schema(event_schema)

tox.ini

@@ -20,6 +20,7 @@ envlist =
     black
     isort
     jsonformat
+    jsonschema
     pytest
     markdownlint
 
@@ -49,6 +50,12 @@ deps =
     pytest==6.2.5
 commands = pytest test_jsonformat.py {posargs}
 
+[testenv:jsonschema]
+deps =
+    pytest==6.2.5
+    jsonschema==4.20.0
+commands = pytest test_jsonschema.py {posargs}
+
 [testenv:pytest]
 deps =
     -rrequirements.txt