| <!DOCTYPE html> |
| <html> |
| <body> |
| <script src="../resources/testharness.js"></script> |
| <script src="../resources/testharnessreport.js"></script> |
| <script> |
| promise_test(async (t) => { |
| if (!window.internals) |
| return; |
| internals.setMediaSessionRestrictions("WebAudio", "backgroundprocessplaybackrestricted"); |
| |
| // Regular context who is setting its destination upfront, it should be interrupted/uninterrupted following background interruptions. |
| var context1 = new AudioContext; |
| // Context who is setting its destination to a media stream track then to the default destination. It should not be interrupted until its destination changes. |
| var context2 = new AudioContext; |
| // Context who is setting its destination to a media stream track. It should not be interrupted. |
| var context3 = new AudioContext; |
| // Context who is created while in the background, its destination as a media stream track then the default destination. It should not be interrupted until its destination changes. |
| var context4 = new AudioContext; |
| |
| t.add_cleanup(() => { |
| context1.close(); |
| context2.close(); |
| context3.close(); |
| context4.close(); |
| }); |
| |
| var source1 = context1.createConstantSource(); |
| source1.connect(context1.destination); |
| |
| var source2 = context2.createConstantSource(); |
| var destination2 = context2.createMediaStreamDestination(); |
| source2.connect(destination2); |
| |
| var source3 = context3.createConstantSource(); |
| var destination3 = context3.createMediaStreamDestination(); |
| source3.connect(destination3); |
| |
| let stateChangePromise = new Promise((resolve, reject) => { |
| context1.onstatechange = resolve; |
| setTimeout(() => reject("start promise timed out"), 5000); |
| }); |
| |
| source1.start(); |
| source2.start(); |
| source3.start(); |
| |
| await stateChangePromise; |
| await new Promise(resolve => setTimeout(resolve, 10)); |
| |
| assert_equals(context1.state, "running", "test1a"); |
| assert_equals(context2.state, "running", "test1b"); |
| assert_equals(context3.state, "running", "test1c"); |
| |
| stateChangePromise = new Promise((resolve, reject) => { |
| context1.onstatechange = resolve; |
| setTimeout(() => reject("context1 interruption promise timed out"), 5000); |
| }) |
| internals.applicationDidEnterBackground(false); |
| |
| await stateChangePromise; |
| await new Promise(resolve => setTimeout(resolve, 10)); |
| |
| assert_equals(context1.state, "interrupted", "test2a"); |
| assert_equals(context2.state, "running", "test2b"); |
| assert_equals(context3.state, "running", "test2c"); |
| |
| var source4 = context4.createConstantSource(); |
| var destination4 = context4.createMediaStreamDestination(); |
| source4.connect(destination4); |
| |
| stateChangePromise = new Promise((resolve, reject) => { |
| context2.onstatechange = resolve; |
| setTimeout(() => reject("context2 interruption promise timed out"), 5000); |
| }); |
| source2.connect(context2.destination); |
| |
| await stateChangePromise; |
| await new Promise(resolve => setTimeout(resolve, 10)); |
| |
| assert_equals(context1.state, "interrupted", "test3a"); |
| assert_equals(context2.state, "interrupted", "test3b"); |
| assert_equals(context3.state, "running", "test3c"); |
| assert_equals(context4.state, "running", "test3d"); |
| |
| stateChangePromise = new Promise((resolve, reject) => { |
| context4.onstatechange = resolve; |
| setTimeout(() => reject("context4 interruption promise timed out"), 5000); |
| }); |
| source4.connect(context4.destination); |
| |
| await stateChangePromise; |
| await new Promise(resolve => setTimeout(resolve, 10)); |
| |
| assert_equals(context1.state, "interrupted", "test4q"); |
| assert_equals(context2.state, "interrupted", "test4b"); |
| assert_equals(context3.state, "running", "test4c"); |
| assert_equals(context4.state, "interrupted", "test4d"); |
| |
| stateChangePromise = new Promise((resolve, reject) => { |
| context2.onstatechange = resolve; |
| setTimeout(() => reject("context2 uninterruption promise timed out"), 5000); |
| }); |
| internals.applicationWillEnterForeground(false); |
| |
| await stateChangePromise; |
| await new Promise(resolve => setTimeout(resolve, 10)); |
| |
| assert_equals(context1.state, "running", "test5a"); |
| assert_equals(context2.state, "running", "test5b"); |
| assert_equals(context3.state, "running", "test5c"); |
| assert_equals(context4.state, "running", "test5d"); |
| }, "Tests that media session interruption does not cause AudioContext interruption for AudioContext that do not output audio"); |
| </script> |
| </html> |
