diff --git a/curriculum-basis b/curriculum-basis
index 534df3e..ce330e9 160000
--- a/curriculum-basis
+++ b/curriculum-basis
@@ -1 +1 @@
-Subproject commit 534df3e2d0ef0cb2f449473963bd7b323df38f3a
+Subproject commit ce330e92515570d884c83a8ff6eb8632b0b01389
diff --git a/package.json b/package.json
index 8e90685..dce8230 100644
--- a/package.json
+++ b/package.json
@@ -3,13 +3,14 @@
   "description": "Curriculum Context: Referentiekader nederlandse taal en rekenen",
   "main": "context.json",
   "scripts": {
-    "test": "node test/test.js"
+    "test": "node test/test.mjs"
   },
   "author": "SLO",
   "license": "MIT",
   "dependencies": {
     "ajv": "^6.5.5",
     "jsondiffpatch": "^0.3.11",
-    "uuid": "^3.3.2"
+    "uuid": "^3.3.2",
+    "curriculum-js": "^0.4.1"
   }
 }
diff --git a/test/test.js b/test/test.js
deleted file mode 100644
index 327a90c..0000000
--- a/test/test.js
+++ /dev/null
@@ -1,36 +0,0 @@
-	var Ajv = require('ajv');
-	var ajv = new Ajv({
-		'extendRefs': true,
-		'allErrors': true,
-		'jsonPointers': true
-	});
-	var validate = null;
-
-	ajv.addKeyword('itemTypeReference', {
-		validate: function(schema, data, parentSchema, dataPath, parentData, propertyName, rootData) {
-			var matches = /.*\#\/definitions\/(.*)/g.exec(schema);
-			if (matches) {
-				var result = curriculum.types[data] == matches[1];
-				return result;
-			}
-			console.log('Unknown #ref definition: '+schema);
-		}
-	});
-
-	var curriculum  = require('../curriculum-basis/lib/curriculum.js');
-	var schema      = curriculum.loadSchema('context.json');
-	var basisSchema = curriculum.loadSchema('curriculum-basis/context.json', 'curriculum-basis/');
-
-	var valid = ajv.addSchema(basisSchema, 'https://opendata.slo.nl/curriculum/schemas/curriculum-basis/context.json')
-			.addSchema(schema, 'https://opendata.slo.nl/curriculum/schemas/curriculum-referentiekader/context.json')
-            .validate('https://opendata.slo.nl/curriculum/schemas/curriculum-referentiekader/context.json', curriculum.data);
-
-	if (!valid) {
-		ajv.errors.forEach(function(error) {
-			console.log(error.dataPath+': '+error.message);
-		});
-		console.log('data is invalid');
-		process.exit(1);
-	} else {
-		console.log('data is valid!');
-	}
diff --git a/test/test.mjs b/test/test.mjs
new file mode 100644
index 0000000..b2fa4ec
--- /dev/null
+++ b/test/test.mjs
@@ -0,0 +1,22 @@
+import Curriculum from 'curriculum-js'
+
+async function validate() {
+
+	var curriculum  = new Curriculum()
+	var basisSchema = await curriculum.loadContextFromFile('curriculum-basis', 'curriculum-basis/context.json');
+	var schema      = await	curriculum.loadContextFromFile('curriculum-referentiekader', 'context.json');
+	try {
+		let result = await curriculum.validate(schema)
+		console.log('Data is valid!')
+	} catch(error) {
+		if (!error.validationErrors) {
+			console.error(error)
+		} else {
+			error.validationErrors.forEach(error => {
+				console.error(error.instancePath+': '+error.message)
+			})
+		}
+	}
+}
+
+validate()