1 files changed, 68 insertions, 0 deletions
diff --git a/helpers/FakeHttpProvider.js b/helpers/FakeHttpProvider.js
new file mode 100644
index 00000000..20d1f258
--- /dev/null
+++ b/helpers/FakeHttpProvider.js
@@ -0,0 +1,68 @@
+var chai = require('chai');
+var assert = require('assert');
+var utils = require('../../lib/utils/utils');
+
+var getResponseStub = function () {
+    return {
+        jsonrpc: '2.0',
+        id: 1,
+        result: 0
+    };
+};
+
+var FakeHttpProvider = function () {
+    this.response = getResponseStub();
+    this.error = null;
+    this.validation = null;
+};
+
+FakeHttpProvider.prototype.send = function (payload) {
+    assert.equal(utils.isArray(payload) || utils.isObject(payload), true);
+    // TODO: validate jsonrpc request
+    if (this.error) {
+        throw this.error;
+    } 
+    if (this.validation) {
+        // imitate plain json object
+        this.validation(JSON.parse(JSON.stringify(payload)));
+    }
+    return this.response;
+};
+
+FakeHttpProvider.prototype.sendAsync = function (payload, callback) {
+    assert.equal(utils.isArray(payload) || utils.isObject(payload), true);
+    assert.equal(utils.isFunction(callback), true);
+    if (this.validation) {
+        // imitate plain json object
+        this.validation(JSON.parse(JSON.stringify(payload)), callback);
+    }
+    callback(this.error, this.response);
+};
+
+FakeHttpProvider.prototype.injectResponse = function (response) {
+    this.response = response;
+};
+
+FakeHttpProvider.prototype.injectResult = function (result) {
+    this.response = getResponseStub();
+    this.response.result = result;
+};
+
+FakeHttpProvider.prototype.injectBatchResults = function (results) {
+    this.response = results.map(function (r) {
+        var response = getResponseStub();
+        response.result = r;
+        return response;
+    }); 
+};
+
+FakeHttpProvider.prototype.injectError = function (error) {
+    this.error = error;
+};
+
+FakeHttpProvider.prototype.injectValidation = function (callback) {
+    this.validation = callback;
+};
+
+module.exports = FakeHttpProvider;
+