add node modules to repo

node_modules/traverse/test/mutability.js

@@ -0,0 +1,203 @@
+var assert = require('assert');
+var Traverse = require('traverse');
+
+exports.mutate = function () {
+    var obj = { a : 1, b : 2, c : [ 3, 4 ] };
+    var res = Traverse(obj).forEach(function (x) {
+        if (typeof x === 'number' && x % 2 === 0) {
+            this.update(x * 10);
+        }
+    });
+    assert.deepEqual(obj, res);
+    assert.deepEqual(obj, { a : 1, b : 20, c : [ 3, 40 ] });
+};
+
+exports.mutateT = function () {
+    var obj = { a : 1, b : 2, c : [ 3, 4 ] };
+    var res = Traverse.forEach(obj, function (x) {
+        if (typeof x === 'number' && x % 2 === 0) {
+            this.update(x * 10);
+        }
+    });
+    assert.deepEqual(obj, res);
+    assert.deepEqual(obj, { a : 1, b : 20, c : [ 3, 40 ] });
+};
+
+exports.map = function () {
+    var obj = { a : 1, b : 2, c : [ 3, 4 ] };
+    var res = Traverse(obj).map(function (x) {
+        if (typeof x === 'number' && x % 2 === 0) {
+            this.update(x * 10);
+        }
+    });
+    assert.deepEqual(obj, { a : 1, b : 2, c : [ 3, 4 ] });
+    assert.deepEqual(res, { a : 1, b : 20, c : [ 3, 40 ] });
+};
+
+exports.mapT = function () {
+    var obj = { a : 1, b : 2, c : [ 3, 4 ] };
+    var res = Traverse.map(obj, function (x) {
+        if (typeof x === 'number' && x % 2 === 0) {
+            this.update(x * 10);
+        }
+    });
+    assert.deepEqual(obj, { a : 1, b : 2, c : [ 3, 4 ] });
+    assert.deepEqual(res, { a : 1, b : 20, c : [ 3, 40 ] });
+};
+
+exports.clone = function () {
+    var obj = { a : 1, b : 2, c : [ 3, 4 ] };
+    var res = Traverse(obj).clone();
+    assert.deepEqual(obj, res);
+    assert.ok(obj !== res);
+    obj.a ++;
+    assert.deepEqual(res.a, 1);
+    obj.c.push(5);
+    assert.deepEqual(res.c, [ 3, 4 ]);
+};
+
+exports.cloneT = function () {
+    var obj = { a : 1, b : 2, c : [ 3, 4 ] };
+    var res = Traverse.clone(obj);
+    assert.deepEqual(obj, res);
+    assert.ok(obj !== res);
+    obj.a ++;
+    assert.deepEqual(res.a, 1);
+    obj.c.push(5);
+    assert.deepEqual(res.c, [ 3, 4 ]);
+};
+
+exports.reduce = function () {
+    var obj = { a : 1, b : 2, c : [ 3, 4 ] };
+    var res = Traverse(obj).reduce(function (acc, x) {
+        if (this.isLeaf) acc.push(x);
+        return acc;
+    }, []);
+    assert.deepEqual(obj, { a : 1, b : 2, c : [ 3, 4 ] });
+    assert.deepEqual(res, [ 1, 2, 3, 4 ]);
+};
+
+exports.reduceInit = function () {
+    var obj = { a : 1, b : 2, c : [ 3, 4 ] };
+    var res = Traverse(obj).reduce(function (acc, x) {
+        if (this.isRoot) assert.fail('got root');
+        return acc;
+    });
+    assert.deepEqual(obj, { a : 1, b : 2, c : [ 3, 4 ] });
+    assert.deepEqual(res, obj);
+};
+
+exports.remove = function () {
+    var obj = { a : 1, b : 2, c : [ 3, 4 ] };
+    Traverse(obj).forEach(function (x) {
+        if (this.isLeaf && x % 2 == 0) this.remove();
+    });
+    
+    assert.deepEqual(obj, { a : 1, c : [ 3 ] });
+};
+
+exports.removeMap = function () {
+    var obj = { a : 1, b : 2, c : [ 3, 4 ] };
+    var res = Traverse(obj).map(function (x) {
+        if (this.isLeaf && x % 2 == 0) this.remove();
+    });
+    
+    assert.deepEqual(obj, { a : 1, b : 2, c : [ 3, 4 ] });
+    assert.deepEqual(res, { a : 1, c : [ 3 ] });
+};
+
+exports.delete = function () {
+    var obj = { a : 1, b : 2, c : [ 3, 4 ] };
+    Traverse(obj).forEach(function (x) {
+        if (this.isLeaf && x % 2 == 0) this.delete();
+    });
+    
+    assert.ok(!Traverse.deepEqual(
+        obj, { a : 1, c : [ 3, undefined ] }
+    ));
+    
+    assert.ok(Traverse.deepEqual(
+        obj, { a : 1, c : [ 3 ] }
+    ));
+    
+    assert.ok(!Traverse.deepEqual(
+        obj, { a : 1, c : [ 3, null ] }
+    ));
+};
+
+exports.deleteRedux = function () {
+    var obj = { a : 1, b : 2, c : [ 3, 4, 5 ] };
+    Traverse(obj).forEach(function (x) {
+        if (this.isLeaf && x % 2 == 0) this.delete();
+    });
+    
+    assert.ok(!Traverse.deepEqual(
+        obj, { a : 1, c : [ 3, undefined, 5 ] }
+    ));
+    
+    assert.ok(Traverse.deepEqual(
+        obj, { a : 1, c : [ 3 ,, 5 ] }
+    ));
+    
+    assert.ok(!Traverse.deepEqual(
+        obj, { a : 1, c : [ 3, null, 5 ] }
+    ));
+    
+    assert.ok(!Traverse.deepEqual(
+        obj, { a : 1, c : [ 3, 5 ] }
+    ));
+};
+
+exports.deleteMap = function () {
+    var obj = { a : 1, b : 2, c : [ 3, 4 ] };
+    var res = Traverse(obj).map(function (x) {
+        if (this.isLeaf && x % 2 == 0) this.delete();
+    });
+    
+    assert.ok(Traverse.deepEqual(
+        obj,
+        { a : 1, b : 2, c : [ 3, 4 ] }
+    ));
+    
+    var xs = [ 3, 4 ];
+    delete xs[1];
+    
+    assert.ok(Traverse.deepEqual(
+        res, { a : 1, c : xs }
+    ));
+    
+    assert.ok(Traverse.deepEqual(
+        res, { a : 1, c : [ 3, ] }
+    ));
+    
+    assert.ok(Traverse.deepEqual(
+        res, { a : 1, c : [ 3 ] }
+    ));
+};
+
+exports.deleteMapRedux = function () {
+    var obj = { a : 1, b : 2, c : [ 3, 4, 5 ] };
+    var res = Traverse(obj).map(function (x) {
+        if (this.isLeaf && x % 2 == 0) this.delete();
+    });
+    
+    assert.ok(Traverse.deepEqual(
+        obj,
+        { a : 1, b : 2, c : [ 3, 4, 5 ] }
+    ));
+    
+    var xs = [ 3, 4, 5 ];
+    delete xs[1];
+    
+    assert.ok(Traverse.deepEqual(
+        res, { a : 1, c : xs }
+    ));
+    
+    assert.ok(!Traverse.deepEqual(
+        res, { a : 1, c : [ 3, 5 ] }
+    ));
+    
+    assert.ok(Traverse.deepEqual(
+        res, { a : 1, c : [ 3 ,, 5 ] }
+    ));
+};