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1 /* -*- Mode: javascript; js-indent-level: 2; -*- */ |
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2 /* Any copyright is dedicated to the Public Domain. |
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3 http://creativecommons.org/publicdomain/zero/1.0/ */ |
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4 |
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5 // Test that we can nest event loops and then automatically exit nested event |
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6 // loops when requested. |
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7 |
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8 var gClient; |
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9 var gThreadActor; |
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10 |
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11 function run_test() { |
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12 initTestDebuggerServer(); |
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13 let gDebuggee = addTestGlobal("test-nesting"); |
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14 gClient = new DebuggerClient(DebuggerServer.connectPipe()); |
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15 gClient.connect(function () { |
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16 attachTestTabAndResume(gClient, "test-nesting", function (aResponse, aTabClient, aThreadClient) { |
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17 // Reach over the protocol connection and get a reference to the thread actor. |
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18 gThreadActor = aThreadClient._transport._serverConnection.getActor(aThreadClient._actor); |
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19 |
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20 test_nesting(); |
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21 }); |
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22 }); |
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23 do_test_pending(); |
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24 } |
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25 |
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26 function test_nesting() { |
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27 const thread = gThreadActor; |
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28 const { resolve, reject, promise: p } = promise.defer(); |
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29 |
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30 // The following things should happen (in order): |
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31 // 1. In the new event loop (created by synchronize) |
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32 // 2. Resolve the promise (shouldn't exit any event loops) |
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33 // 3. Exit the event loop (should also then exit synchronize's event loop) |
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34 // 4. Be after the synchronize call |
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35 let currentStep = 0; |
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36 |
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37 executeSoon(function () { |
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38 let eventLoop; |
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39 |
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40 executeSoon(function () { |
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41 // Should be at step 2 |
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42 do_check_eq(++currentStep, 2); |
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43 // Before resolving, should have the synchronize event loop and the one just created. |
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44 do_check_eq(thread._nestedEventLoops.size, 2); |
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45 |
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46 executeSoon(function () { |
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47 // Should be at step 3 |
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48 do_check_eq(++currentStep, 3); |
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49 // Before exiting the manually created event loop, should have the |
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50 // synchronize event loop and the manual event loop. |
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51 do_check_eq(thread._nestedEventLoops.size, 2); |
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52 // Should have the event loop |
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53 do_check_true(!!eventLoop); |
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54 eventLoop.resolve(); |
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55 }); |
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56 |
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57 resolve(true); |
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58 // Shouldn't exit any event loops because a new one started since the call to synchronize |
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59 do_check_eq(thread._nestedEventLoops.size, 2); |
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60 }); |
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61 |
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62 // Should be at step 1 |
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63 do_check_eq(++currentStep, 1); |
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64 // Should have only the synchronize event loop |
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65 do_check_eq(thread._nestedEventLoops.size, 1); |
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66 eventLoop = thread._nestedEventLoops.push(); |
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67 eventLoop.enter(); |
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68 }); |
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69 |
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70 do_check_eq(thread.synchronize(p), true); |
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71 |
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72 // Should be on the fourth step |
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73 do_check_eq(++currentStep, 4); |
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74 // There shouldn't be any nested event loops anymore |
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75 do_check_eq(thread._nestedEventLoops.size, 0); |
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76 |
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77 finishClient(gClient); |
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78 } |