Added unit tests. Modified replaceNull() method in base class.

lib/base.js

@@ -80,7 +80,7 @@ Record = function(attempts, bargein, beep, choices, format, maxSilence, maxTime,
 	this.required = required;
 	this.say = serializeProperty(say);
 	this.timeout = timeout;
-	this.transcription = (typeof(transcription) == 'Object') ? serializeProperty(transcription) : recording;
+	this.transcription = (typeof(transcription) == 'Object') ? serializeProperty(transcription) : transcription;
 	this.url = url;
 	this.password = password;
 	this.username = username;
@@ -167,9 +167,9 @@ function serializeProperty(object) {
 
 // Helper method to remove null values from rendered JSON.
 function replaceNull (key, value) {
-    if (value === null || typeof(value) == 'undefined' || value == '') {
+    if (value === null) {
         return undefined;
-    }
+   }
     return value;
 };
 

tests/tests.js

@@ -0,0 +1,115 @@
+/**
+ * A set of unit tests for the Tropo WebAPI classes.
+ * run by executing:
+ * ~$ node tropo-webapi-node/tests/tests.js
+ */
+
+require('../lib/tropo-webapi');
+var assert = require('assert');
+var sys = require('sys');
+
+var sayExpected = '{"tropo":[{ "say":{"value":"Hello, World.","required":true,"voice":"carmen"}}]}';
+var askExpected = '{"tropo":[{ "ask":{"choices":{"value":"[5 DIGITS]"},"bargein":true,"name":"foo","required":true,"say":{"value":"Please say your account number."},"timeout":30}}]}';
+var callExpected = '{"tropo":[{ "call":{"to":"3055195825"}}]}';
+var conferenceExpected = '{"tropo":[{ "conference":{"id":1234,"mute":false,"name":"foo","playTones":false,"terminator":"#"}}]}'
+var hangupExpected = '{"tropo":[{ "hangup":{}}]}';
+var messageExpected = '{"tropo":[{ "message":{"say":{"value":"This is an announcement"},"to":"3055195825","answerOnMedia":false,"channel":"TEXT","from":"3055551212","network":"SMS","timeout":10,"voice":"kate"}}]}'
+var recordExpected = '{"tropo":[{ "record":{"beep":true,"choices":{"value":"[5 DIGITS]"},"maxSilence":5,"method":"POST","name":"foo","required":true,"say":{"value":"Please say your account number"}}}]}';
+
+var numTests = 0;
+var numFailed = 0;
+
+sys.puts('***** Starting Test Run ************');
+sys.puts(' ');
+sys.puts('Say Test: ' + sayTest(sayExpected));
+sys.puts('Ask Test: ' + askTest(askExpected));
+sys.puts('Call Test: ' + callTest(callExpected));
+sys.puts('Conference Test: ' + conferenceTest(conferenceExpected));
+sys.puts('Hangup Test: ' + hangupTest(hangupExpected));
+sys.puts('Message Test: ' + messageTest(messageExpected));
+sys.puts('Record Test: ' + recordTest(recordExpected));
+sys.puts('');
+sys.puts('Total Tests Run: ' + numTests);
+sys.puts('Total Failed: ' + numFailed);
+sys.puts(' ');
+sys.puts('***** Test Run Complete ************');
+
+// A test for the Tropo Say object. 
+function sayTest(expected) {
+
+	var tropo = new TropoWebAPI();
+	tropo.say("Hello, World.", null, null, true, "carmen");
+	return runTest(TropoJSON(tropo), expected);
+
+}
+
+// A test for the Tropo Ask object.
+function askTest(expected) {
+
+	var tropo = new TropoWebAPI();
+	var say = new Say("Please say your account number.");
+	var choices = new Choices("[5 DIGITS]");
+	tropo.ask(choices, null, true, null, "foo", null, true, say, 30, null);
+	return runTest(TropoJSON(tropo), expected);
+}
+
+// A test for the Tropo Call object.
+function callTest(expected) {
+
+	var tropo = new TropoWebAPI();
+	tropo.call("3055195825");
+	return runTest(TropoJSON(tropo), expected);
+}
+
+// A test for the Tropo Conference object.
+function conferenceTest(expected) {
+
+	var tropo = new TropoWebAPI();
+	tropo.conference(1234, false, "foo", false, null, "#");
+	return runTest(TropoJSON(tropo), expected);
+}
+
+// A test for the Tropo Hangup object.
+function hangupTest(expected) {
+
+	var tropo = new TropoWebAPI();
+	tropo.hangup();
+	return runTest(TropoJSON(tropo), expected)
+}
+
+// A test for the Tropo Message object.
+function messageTest(expected) {
+
+	var tropo = new TropoWebAPI();
+	var say = new Say("This is an announcement");
+	tropo.message(say, "3055195825", false, "TEXT", "3055551212", null, "SMS", null, 10, "kate");
+	return runTest(TropoJSON(tropo), expected)
+
+}
+
+// A test for the Tropo Record object.
+function recordTest(expected) {
+
+	var tropo = new TropoWebAPI();
+	var say = new Say("Please say your account number");
+	var choices = new Choices("[5 DIGITS]");
+	tropo.record(null, null, true, choices, null, 5, null, "POST", null, "foo", true, say);
+	return runTest(TropoJSON(tropo), expected)
+
+}
+
+// A helper method to run the assertion test.
+function runTest(actual, expected) {
+
+	numTests++;
+	try { 
+		assert.equal(actual, expected)
+		return 'Passed.';
+	}
+
+	catch (err) {
+		numFailed++;
+		return 'Failed.\n' + err;
+	}
+
+}