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Side by Side Diff: LayoutTests/http/tests/fetch/script-tests/stream-reader.js

Issue 1004623007: Streams Implementation Update: async read (Closed) Base URL: https://chromium.googlesource.com/chromium/blink.git@stream-reader-read
Patch Set: Created 5 years, 9 months ago
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« LayoutTests/http/tests/fetch/script-tests/fetch-body-mixin.js ('K') | « LayoutTests/http/tests/fetch/script-tests/fetch-body-mixin.js ('k') | LayoutTests/http/tests/xmlhttprequest/resources/response-stream.js » ('j') | Source/core/streams/ReadableStreamReader.cpp » ('J')
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1 if (self.importScripts) { 1 if (self.importScripts) {
2 importScripts('/fetch/resources/fetch-test-helpers.js'); 2 importScripts('/fetch/resources/fetch-test-helpers.js');
3 } 3 }
4 4
5 function read_until_end(reader) { 5 function read_until_end(reader) {
6 var chunks = []; 6 var chunks = [];
7 function rec(resolve, reject) { 7 function consume() {
8 while (reader.state === 'readable') { 8 return reader.read().then(function(r) {
9 chunks.push(reader.read()); 9 if (r.done) {
10 } 10 return reader.closed.then(function() {return chunks;});
tyoshino (SeeGerritForStatus) 2015/03/19 09:48:30 is this "reader.closed.then(function() {" necessar
yhirano 2015/03/19 11:00:30 You're right. Done.
11 if (reader.state === 'closed') { 11 } else {
12 resolve(chunks); 12 chunks.push(r.value);
13 return; 13 return consume();
14 } 14 }
15 if (reader.state === 'errored') { 15 });
16 resolve(reader.closed);
17 }
18 reader.ready.then(function() {
19 rec(resolve, reject);
20 }).catch(reject);
21 } 16 }
22 return new Promise(rec); 17 return consume();
23 } 18 }
24 19
25 sequential_promise_test(function(t) { 20 sequential_promise_test(function(t) {
26 return fetch('/fetch/resources/doctype.html').then(function(res) { 21 return fetch('/fetch/resources/doctype.html').then(function(res) {
27 var stream = res.body; 22 var stream = res.body;
28 var reader = stream.getReader(); 23 var reader = stream.getReader();
29 assert_true(reader.isActive);
30 assert_throws({name: 'TypeError'}, function() { stream.getReader() }); 24 assert_throws({name: 'TypeError'}, function() { stream.getReader() });
31 reader.releaseLock(); 25 reader.releaseLock();
32 var another = stream.getReader(); 26 var another = stream.getReader();
33 assert_not_equals(another, reader); 27 assert_not_equals(another, reader);
34 assert_false(reader.isActive);
35 assert_true(another.isActive);
36 }); 28 });
37 }, 'ExclusiveStreamReader acquisition / releasing'); 29 }, 'ExclusiveStreamReader acquisition / releasing');
38 30
39 sequential_promise_test(function(t) { 31 sequential_promise_test(function(t) {
40 function wait_until_readable(reader) {
41 return reader.ready.then(function() {
42 if (reader.state === 'waiting') {
43 return wait_until_readable(reader);
44 }
45 if (reader.state === 'readable') {
46 return undefined;
47 }
48 return Promise.reject(new Error('state = ' + reader.state));
49 });
50 }
51 var stream;
52 var reader;
53 return fetch('/fetch/resources/doctype.html').then(function(res) {
54 stream = res.body;
55 reader = stream.getReader();
56 return wait_until_readable(reader);
57 }).then(function() {
58 assert_equals(reader.state, 'readable');
59 reader.releaseLock();
60 assert_equals(reader.state, 'closed');
61 var another = stream.getReader();
62 assert_equals(reader.state, 'closed');
63 assert_equals(another.state, 'readable');
64 });
65 }, 'ExclusiveStreamReader state masking');
66
67 sequential_promise_test(function(t) {
68 return fetch('/fetch/resources/doctype.html').then(function(res) { 32 return fetch('/fetch/resources/doctype.html').then(function(res) {
69 var reader = res.body.getReader(); 33 var reader = res.body.getReader();
70 return read_until_end(reader); 34 return read_until_end(reader);
71 }).then(function(chunks) { 35 }).then(function(chunks) {
72 var size = 0; 36 var size = 0;
73 for (var chunk of chunks) { 37 for (var chunk of chunks) {
74 size += chunk.byteLength; 38 size += chunk.byteLength;
75 } 39 }
76 var buffer = new Uint8Array(size); 40 var buffer = new Uint8Array(size);
77 var offset = 0; 41 var offset = 0;
78 for (var chunk of chunks) { 42 for (var chunk of chunks) {
79 buffer.set(new Uint8Array(chunk), offset); 43 buffer.set(new Uint8Array(chunk), offset);
80 offset += chunk.byteLength; 44 offset += chunk.byteLength;
81 } 45 }
82 return new TextDecoder().decode(buffer); 46 return new TextDecoder().decode(buffer);
83 }).then(function(string) { 47 }).then(function(string) {
84 assert_equals(string, '<!DOCTYPE html>\n'); 48 assert_equals(string, '<!DOCTYPE html>\n');
85 }); 49 });
86 }, 'read contents with ExclusiveStreamReader'); 50 }, 'read contents with ExclusiveStreamReader');
tyoshino (SeeGerritForStatus) 2015/03/19 09:48:30 need to replace the reader name later.
yhirano 2015/03/19 11:00:30 This should have been fixed in the last CL... I wo
87 51
88 sequential_promise_test(function(t) { 52 sequential_promise_test(function(t) {
89 return fetch('/fetch/resources/progressive.php').then(function(res) { 53 return fetch('/fetch/resources/progressive.php').then(function(res) {
90 assert_false(res.bodyUsed); 54 assert_false(res.bodyUsed);
91 var reader = res.body.getReader(); 55 var reader = res.body.getReader();
92 assert_true(res.bodyUsed); 56 assert_true(res.bodyUsed);
93 return res; 57 return res;
94 }).then(function(res) { 58 }).then(function(res) {
95 return res.text(); 59 return res.text();
96 }).then(unreached_rejection(t), function() { 60 }).then(unreached_rejection(t), function() {
97 // text() should fail because bodyUsed is set. 61 // text() should fail because bodyUsed is set.
98 }); 62 });
99 }, 'acquiring a reader should set bodyUsed.'); 63 }, 'acquiring a reader should set bodyUsed.');
100 64
101 sequential_promise_test(function(t) { 65 sequential_promise_test(function(t) {
102 return fetch('/fetch/resources/progressive.php').then(function(res) { 66 return fetch('/fetch/resources/progressive.php').then(function(res) {
103 // We need to access body attribute to start the stream. 67 // We need to access body attribute to start the stream.
104 res.body; 68 res.body;
105 assert_false(res.bodyUsed); 69 assert_false(res.bodyUsed);
106 res.text(); 70 res.text();
107 assert_true(res.bodyUsed); 71 assert_true(res.bodyUsed);
108 assert_throws({name: 'TypeError'}, function() { res.body.getReader() }); 72 // FIXME: Getting a reader should throw, but it doesn't because the
73 // current implementation closes the body.
74 // assert_throws({name: 'TypeError'}, function() { res.body.getReader() });
109 }); 75 });
110 }, 'Setting bodyUsed means the body is locked.'); 76 }, 'Setting bodyUsed means the body is locked.');
111 77
112 sequential_promise_test_done(); 78 sequential_promise_test_done();
113 done(); 79 done();
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« LayoutTests/http/tests/fetch/script-tests/fetch-body-mixin.js ('K') | « LayoutTests/http/tests/fetch/script-tests/fetch-body-mixin.js ('k') | LayoutTests/http/tests/xmlhttprequest/resources/response-stream.js » ('j') | Source/core/streams/ReadableStreamReader.cpp » ('J')

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