91 lines
2.4 KiB
JavaScript
91 lines
2.4 KiB
JavaScript
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var Readable = require('../lib/lazystream').Readable;
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var DummyReadable = require('./helper').DummyReadable;
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exports.readable = {
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dummy: function(test) {
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var expected = [ 'line1\n', 'line2\n' ];
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var actual = [];
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test.expect(1);
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new DummyReadable([].concat(expected))
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.on('data', function(chunk) {
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actual.push(chunk.toString());
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})
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.on('end', function() {
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test.equal(actual.join(''), expected.join(''), 'DummyReadable should produce the data it was created with');
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test.done();
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});
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},
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options: function(test) {
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test.expect(3);
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var readable = new Readable(function(options) {
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test.ok(this instanceof Readable, "Readable should bind itself to callback's this");
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test.equal(options.encoding, "utf-8", "Readable should make options accessible to callback");
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this.ok = true;
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return new DummyReadable(["test"]);
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}, {encoding: "utf-8"});
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readable.read(4);
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test.ok(readable.ok);
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test.done();
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},
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streams2: function(test) {
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var expected = [ 'line1\n', 'line2\n' ];
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var actual = [];
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var instantiated = false;
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test.expect(2);
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var readable = new Readable(function() {
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instantiated = true;
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return new DummyReadable([].concat(expected));
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});
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test.equal(instantiated, false, 'DummyReadable should only be instantiated when it is needed');
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readable.on('readable', function() {
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var chunk;
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while ((chunk = readable.read())) {
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actual.push(chunk.toString());
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}
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});
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readable.on('end', function() {
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test.equal(actual.join(''), expected.join(''), 'Readable should not change the data of the underlying stream');
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test.done();
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});
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readable.read(0);
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},
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resume: function(test) {
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var expected = [ 'line1\n', 'line2\n' ];
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var actual = [];
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var instantiated = false;
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test.expect(2);
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var readable = new Readable(function() {
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instantiated = true;
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return new DummyReadable([].concat(expected));
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});
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readable.pause();
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readable.on('data', function(chunk) {
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actual.push(chunk.toString());
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});
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readable.on('end', function() {
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test.equal(actual.join(''), expected.join(''), 'Readable should not change the data of the underlying stream');
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test.done();
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});
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test.equal(instantiated, false, 'DummyReadable should only be instantiated when it is needed');
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readable.resume();
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}
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};
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