Add base for validation

* Referencing #25

package.json

@@ -24,6 +24,7 @@
   "scripts": {
     "labgen": "node main.js",
     "validate-lab-descriptor": "node validateDescriptor.js",
+    "validate-schema": "node validation/validate.js",
     "build-ds-exp": "node exp.js --env=testing ../",
     "build-exp": "node exp.js --env=testing ../"
   },

validation/schemaMap.json

@@ -0,0 +1,4 @@
+{
+    "posttest.json": "./schemas/quizv2Schema.json",
+    "pretest.json" : "./schemas/quizv2Schema.json"
+}

validation/validate.js

@@ -0,0 +1,43 @@
+const Ajv = require('ajv');
+const path = require('path');
+const schemaMap = require('./schemaMap.json')
+
+let validateSchema = (input="1", schema="1") => {
+    console.log("validating " + input + " against " + schema);
+    console.log("You got validated");
+}
+
+module.exports.validateSchema = validateSchema;
+
+/**
+ * node validation/validate.js <jsonpath> <schema path>
+ */
+if (require.main === module) {
+    let json=""
+    let schema=""
+    console.log(process.argv.length)
+    switch(process.argv.length){
+        case 2:
+            console.log('validating all')
+            validateSchema();
+            break;
+        case 3:
+            json = process.argv[2];
+            json = json.replace('/', '\\')
+            let n = json.lastIndexOf('\\');
+            let jsonKey = json.substring(n + 1);
+            console.log(json, n)
+            schema=schemaMap[jsonKey];
+            console.log(schema)
+            validateSchema(json, schema);
+            break
+        case 4:
+            json = path.resolve(process.argv[2]);
+            schema=path.resolve(process.argv[3]);
+            validateSchema(json, schema);
+            break
+        default:
+            console.log("Error")
+        }
+}
+