packager

app/node_modules/traverse/test/stop.js

@@ -0,0 +1,41 @@
+var assert = require('assert');
+var traverse = require('traverse');
+
+exports.stop = function () {
+    var visits = 0;
+    traverse('abcdefghij'.split('')).forEach(function (node) {
+        if (typeof node === 'string') {
+            visits ++;
+            if (node === 'e') this.stop()
+        }
+    });
+    
+    assert.equal(visits, 5);
+};
+
+exports.stopMap = function () {
+    var s = traverse('abcdefghij'.split('')).map(function (node) {
+        if (typeof node === 'string') {
+            if (node === 'e') this.stop()
+            return node.toUpperCase();
+        }
+    }).join('');
+    
+    assert.equal(s, 'ABCDEfghij');
+};
+
+exports.stopReduce = function () {
+    var obj = {
+        a : [ 4, 5 ],
+        b : [ 6, [ 7, 8, 9 ] ]
+    };
+    var xs = traverse(obj).reduce(function (acc, node) {
+        if (this.isLeaf) {
+            if (node === 7) this.stop();
+            else acc.push(node)
+        }
+        return acc;
+    }, []);
+    
+    assert.deepEqual(xs, [ 4, 5, 6 ]);
+};