Add JSON Schema Validator

[folly.git] / folly / experimental / JSONSchemaTester.cpp

diff --git a/folly/experimental/JSONSchemaTester.cpp b/folly/experimental/JSONSchemaTester.cpp
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+++ b/folly/experimental/JSONSchemaTester.cpp
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+/*
+ * Copyright 2015 Facebook, Inc.
+ *
+ * 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.
+ */
+#include <folly/experimental/JSONSchema.h>
+#include <folly/json.h>
+#include <fstream>
+#include <string>
+
+/**
+ * A binary that supports testing against the official tests from:
+ * https://github.com/json-schema/JSON-Schema-Test-Suite
+ *
+ * Use it like:
+ *   ./jsonschema_tester /path/to/test.json
+ */
+
+int main(int argc, char** argv) {
+  if (argc < 2) {
+    printf("Usage: %s <testfile> [testfile2]...\n", argv[0]);
+    return -1;
+  }
+  for (int i = 1; i < argc; ++i) {
+    printf("FILE: %s\n", argv[i]);
+    std::ifstream fin(argv[i]);
+    std::stringstream buffer;
+    buffer << fin.rdbuf();
+    const folly::dynamic d = folly::parseJson(buffer.str());
+    for (const auto& item : d) {
+      printf("TEST: %s\n", item["description"].c_str());
+      auto v = folly::jsonschema::makeValidator(item["schema"]);
+      for (const auto& t : item["tests"]) {
+        printf("\t%s... ", t["description"].c_str());
+        auto ew = v->try_validate(t["data"]);
+        bool had_error = !static_cast<bool>(ew);
+        if (had_error == t["valid"].asBool()) {
+          printf("passed\n");
+        } else {
+          printf("FAILED\n");
+        }
+      }
+    }
+  }
+}