Add json-patch-test-suite dep instead of copying tests into jiff

lib/patches.js

@@ -110,6 +110,10 @@ function applyAdd(x, change, options) {
 		throw new InvalidPatchOperationError('path does not exist ' + change.path);
 	}
 
+	if(change.value === void 0) {
+		throw new InvalidPatchOperationError('missing value');
+	}
+
 	var val = clone(change.value);
 
 	// If pointer refers to whole document, replace whole document
@@ -128,7 +132,7 @@ function _add(pointer, value) {
 		// '-' indicates 'append' to array
 		if(pointer.key === '-') {
 			target.push(value);
-		} else if (pointer.key > array.length) {
+		} else if (pointer.key > target.length) {
 			throw new InvalidPatchOperationError('target of add outside of array bounds')
 		} else {
 			target.splice(pointer.key, 0, value);
@@ -173,6 +177,10 @@ function applyReplace(x, change, options) {
 		throw new InvalidPatchOperationError('path does not exist ' + change.path);
 	}
 
+	if(change.value === void 0) {
+		throw new InvalidPatchOperationError('missing value');
+	}
+
 	var value = clone(change.value);
 
 	// If pointer refers to whole document, replace whole document

package.json

@@ -17,9 +17,10 @@
   "author": "[email protected]",
   "license": "MIT",
   "devDependencies": {
-    "jshint": "~2",
     "buster": "~0.7",
-    "gent": "0.6.2"
+    "gent": "0.6.2",
+    "jshint": "~2",
+    "json-patch-test-suite": "^1.0.1"
   },
   "repository": {
     "type": "git",

test/json-patch-tests-test.js

@@ -4,8 +4,8 @@ var deepEquals = require('../lib/deepEquals');
 
 var jsonPatch = require('../lib/jsonPatch');
 
-var specTests = require('./json-patch-tests/spec_tests.json');
-var tests = require('./json-patch-tests/tests.json');
+var specTests = require('json-patch-test-suite/spec_tests.json');
+var tests = require('json-patch-test-suite/tests.json');
 
 buster.testCase('json-patch-tests', {
 	'spec_tests.json': jsonToBuster(specTests),