155 lines
3.8 KiB
JavaScript
155 lines
3.8 KiB
JavaScript
"use strict";
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var Driver = source("driver"),
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Utils = source("utils");
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describe("Driver", function() {
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var connection, driver;
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beforeEach(function() {
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connection = {
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connection: "connection"
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};
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driver = new Driver({
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name: "driver",
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connection: connection,
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});
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});
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describe("#constructor", function() {
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it("sets @name to the provided name", function() {
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expect(driver.name).to.be.eql("driver");
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});
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it("sets @connection to the provided connection", function() {
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expect(driver.connection).to.be.eql(connection);
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});
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it("sets @commands to an empty object by default", function() {
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expect(driver.commands).to.be.eql({});
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});
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it("sets @events to an empty array by default", function() {
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expect(driver.events).to.be.eql([]);
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});
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it("sets @interval to 10ms by default, or the provided value", function() {
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expect(driver.interval).to.be.eql(10);
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driver = new Driver({
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name: "driver",
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connection: connection,
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interval: 2000,
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});
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expect(driver.interval).to.be.eql(2000);
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});
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});
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describe("#interface methods", function() {
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var child;
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var Child = function Child() {};
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Utils.subclass(Child, Driver);
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beforeEach(function() {
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child = new Child();
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});
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describe("#start", function() {
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it("throws an error unless overwritten", function() {
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expect(child.start).to.throw();
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child.start = function() {};
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expect(child.start).to.not.throw();
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});
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});
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describe("#halt", function() {
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it("throws an error unless overwritten", function() {
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expect(child.halt).to.throw();
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child.halt = function() {};
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expect(child.halt).to.not.throw();
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});
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});
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});
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describe("#toJSON", function() {
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var json;
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beforeEach(function() {
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driver = new Driver({
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connection: { name: "conn" },
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name: "name",
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port: "3000"
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});
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json = driver.toJSON();
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});
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it("returns an object", function() {
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expect(json).to.be.a("object");
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});
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it("contains the driver's name", function() {
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expect(json.name).to.eql("name");
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});
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it("contains the driver's constructor name", function() {
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expect(json.driver).to.eql("Driver");
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});
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it("contains the driver's connection name", function() {
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expect(json.connection).to.eql("conn");
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});
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it("contains the driver's commands", function() {
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expect(json.commands).to.eql(Object.keys(driver.commands));
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});
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it("contains the driver's events, or an empty array", function() {
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expect(json.events).to.eql([]);
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driver.events = ["hello", "world"];
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expect(driver.toJSON().events).to.be.eql(["hello", "world"]);
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});
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});
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describe("#setupCommands", function() {
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beforeEach(function() {
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driver.proxyMethods = spy();
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});
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it("snake_cases and proxies methods to @commands for the API", function() {
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var commands = ["helloWorld", "otherTestCommand"],
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snake_case = ["hello_world", "other_test_command"];
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commands.forEach(function(name) {
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driver[name] = spy();
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});
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driver.setupCommands(commands);
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for (var i = 0; i < commands.length; i++) {
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var cmd = commands[i],
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snake = snake_case[i];
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expect(driver.commands[snake]).to.be.eql(driver[cmd]);
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}
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});
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it("handles edge cases", function() {
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var commands = ["HelloWorld", "getPNGStream", "getHSetting"],
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snake_case = ["hello_world", "get_png_stream", "get_h_setting"];
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commands.forEach(function(cmd) {
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driver[cmd] = function() {};
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});
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driver.setupCommands(commands);
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expect(Object.keys(driver.commands)).to.be.eql(snake_case);
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});
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});
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});
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