chore: checkpoint before Python removal

vendor/schemars/tests/schema_for_schema.rs

@@ -0,0 +1,19 @@
+mod util;
+use schemars::r#gen::SchemaSettings;
+use schemars::schema::RootSchema;
+use util::*;
+
+#[test]
+fn schema_matches_draft07() -> TestResult {
+    test_generated_schema::<RootSchema>("schema", SchemaSettings::draft07())
+}
+
+#[test]
+fn schema_matches_2019_09() -> TestResult {
+    test_generated_schema::<RootSchema>("schema-2019_09", SchemaSettings::draft2019_09())
+}
+
+#[test]
+fn schema_matches_openapi3() -> TestResult {
+    test_generated_schema::<RootSchema>("schema-openapi3", SchemaSettings::openapi3())
+}