131 lines
4.2 KiB
JavaScript
131 lines
4.2 KiB
JavaScript
var tape = require("tape");
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var asPromise = require("..");
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tape.test("aspromise", function(test) {
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test.test(this.name + " - resolve", function(test) {
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function fn(arg1, arg2, callback) {
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test.equal(this, ctx, "function should be called with this = ctx");
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test.equal(arg1, 1, "function should be called with arg1 = 1");
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test.equal(arg2, 2, "function should be called with arg2 = 2");
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callback(null, arg2);
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}
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var ctx = {};
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var promise = asPromise(fn, ctx, 1, 2);
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promise.then(function(arg2) {
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test.equal(arg2, 2, "promise should be resolved with arg2 = 2");
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test.end();
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}).catch(function(err) {
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test.fail("promise should not be rejected (" + err + ")");
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});
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});
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test.test(this.name + " - reject", function(test) {
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function fn(arg1, arg2, callback) {
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test.equal(this, ctx, "function should be called with this = ctx");
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test.equal(arg1, 1, "function should be called with arg1 = 1");
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test.equal(arg2, 2, "function should be called with arg2 = 2");
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callback(arg1);
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}
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var ctx = {};
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var promise = asPromise(fn, ctx, 1, 2);
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promise.then(function() {
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test.fail("promise should not be resolved");
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}).catch(function(err) {
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test.equal(err, 1, "promise should be rejected with err = 1");
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test.end();
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});
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});
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test.test(this.name + " - resolve twice", function(test) {
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function fn(arg1, arg2, callback) {
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test.equal(this, ctx, "function should be called with this = ctx");
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test.equal(arg1, 1, "function should be called with arg1 = 1");
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test.equal(arg2, 2, "function should be called with arg2 = 2");
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callback(null, arg2);
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callback(null, arg1);
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}
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var ctx = {};
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var count = 0;
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var promise = asPromise(fn, ctx, 1, 2);
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promise.then(function(arg2) {
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test.equal(arg2, 2, "promise should be resolved with arg2 = 2");
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if (++count > 1)
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test.fail("promise should not be resolved twice");
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test.end();
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}).catch(function(err) {
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test.fail("promise should not be rejected (" + err + ")");
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});
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});
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test.test(this.name + " - reject twice", function(test) {
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function fn(arg1, arg2, callback) {
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test.equal(this, ctx, "function should be called with this = ctx");
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test.equal(arg1, 1, "function should be called with arg1 = 1");
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test.equal(arg2, 2, "function should be called with arg2 = 2");
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callback(arg1);
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callback(arg2);
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}
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var ctx = {};
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var count = 0;
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var promise = asPromise(fn, ctx, 1, 2);
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promise.then(function() {
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test.fail("promise should not be resolved");
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}).catch(function(err) {
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test.equal(err, 1, "promise should be rejected with err = 1");
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if (++count > 1)
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test.fail("promise should not be rejected twice");
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test.end();
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});
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});
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test.test(this.name + " - reject error", function(test) {
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function fn(callback) {
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test.ok(arguments.length === 1 && typeof callback === "function", "function should be called with just a callback");
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throw 3;
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}
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var promise = asPromise(fn, null);
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promise.then(function() {
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test.fail("promise should not be resolved");
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}).catch(function(err) {
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test.equal(err, 3, "promise should be rejected with err = 3");
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test.end();
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});
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});
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test.test(this.name + " - reject and error", function(test) {
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function fn(callback) {
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callback(3);
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throw 4;
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}
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var count = 0;
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var promise = asPromise(fn, null);
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promise.then(function() {
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test.fail("promise should not be resolved");
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}).catch(function(err) {
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test.equal(err, 3, "promise should be rejected with err = 3");
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if (++count > 1)
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test.fail("promise should not be rejected twice");
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test.end();
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});
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});
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});
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