validation unit tests

src/validation.ts

@@ -8,7 +8,7 @@ function isCustomValidator (spec: any): spec is Validator {
   return !!spec && !spec.isJoi && 'validate' in spec
 }
 
-export function ensureValidData (spec: SchemaLike | Validator | undefined, data: any[]) {
+export function ensureValidData (spec: SchemaLike | Validator | undefined, data: any) {
   if (!spec) return
 
   if (isCustomValidator(spec)) {

test/validation.spec.ts

@@ -0,0 +1,49 @@
+/// <reference path='typings/globals.d.ts' />
+
+import { ensureValidData } from '../src/validation'
+
+import Joi, { valid } from 'joi'
+
+const joiSchema = Joi.object({
+  correctKey: Joi.strict().required()
+}).required()
+
+const customValidator = {
+  validate (data) {
+    return 'correctKey' in data
+  }
+}
+
+const validData = {
+  correctKey: 'correctValue'
+}
+
+const invalidData = {
+  incorrectKey: 'some value',
+}
+
+describe('ensureValidData', () => {
+  describe('Using Joi schemas', () => {
+    it('passes valid data', () => {
+      expect(() => ensureValidData(joiSchema, validData))
+        .to.not.throw()
+    })
+
+    it('rejects invalid data', () => {
+      expect(() => ensureValidData(joiSchema, invalidData))
+        .to.throw()
+    })
+  })
+
+  describe('Using custom validators', () => {
+    it('passes valid data', () => {
+      expect(() => ensureValidData(customValidator, validData))
+        .to.not.throw()
+    })
+
+    it('rejects invalid data', () => {
+      expect(() => ensureValidData(customValidator, invalidData))
+        .to.throw()
+    })
+  })
+})