Breaking up complexity of main axios file

test/unit/forEach.js

@@ -0,0 +1,33 @@
+var forEach = require('../../lib/forEach');
+
+module.exports = {
+  testArray: function (test) {
+    var sum = 0;
+
+    forEach([1, 2, 3, 4, 5], function (val) {
+      sum += val;
+    });
+
+    test.equal(sum, 15);
+    test.done();
+  },
+
+  testObject: function (test) {
+    var keys = '';
+    var vals = 0;
+    var obj = {
+      b: 1,
+      a: 2,
+      r: 3
+    };
+
+    forEach(obj, function (v, k) {
+      keys += k;
+      vals += v;
+    });
+
+    test.equal(keys, 'bar');
+    test.equal(vals, 6);
+    test.done();
+  }
+};

test/unit/merge.js

@@ -0,0 +1,28 @@
+var merge = require('../../lib/merge');
+
+module.exports = {
+  testImmutability: function (test) {
+    var a = {};
+    var b = {foo: 123};
+    var c = {bar: 456};
+
+    merge(a, b, c);
+
+    test.equals(typeof a.foo, 'undefined');
+    test.equals(typeof a.bar, 'undefined');
+    test.equals(typeof b.bar, 'undefined');
+    test.equals(typeof c.foo, 'undefined');
+    test.done();
+  },
+
+  testMerge: function (test) {
+    var a = {foo: 123};
+    var b = {bar: 456};
+    var c = {foo: 789};
+    var d = merge(a, b, c);
+
+    test.equals(d.foo, 789);
+    test.equals(d.bar, 456);
+    test.done();
+  }
+};

test/unit/transformData.js

@@ -0,0 +1,31 @@
+var transformData = require('../../lib/transformData');
+
+module.exports = {
+  testSingleFunction: function (test) {
+    var data;
+    data = transformData(data, null, function (data) {
+      data = 'foo';
+      return data;
+    });
+
+    test.equals(data, 'foo');
+    test.done();
+  },
+
+  testFunctionArray: function (test) {
+    var data = '';
+    data = transformData(data, null, [function (data) {
+      data += 'f';
+      return data;
+    }, function (data) {
+      data += 'o';
+      return data;
+    }, function (data) {
+      data += 'o';
+      return data;
+    }]);
+
+    test.equals(data, 'foo');
+    test.done();
+  }
+};