toolkit/components/osfile/tests/xpcshell/test_telemetry.js@6474c204b198 (annotated)
toolkit/components/osfile/tests/xpcshell/test_telemetry.js
Wed, 31 Dec 2014 06:09:35 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Wed, 31 Dec 2014 06:09:35 +0100
- changeset 0
- 6474c204b198
- permissions
- -rw-r--r--
Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.
| michael@0 | 1 | "use strict"; |
| michael@0 | 2 | |
| michael@0 | 3 | let {OS: {File, Path, Constants}} = Components.utils.import("resource://gre/modules/osfile.jsm", {}); |
| michael@0 | 4 | let {Services} = Components.utils.import("resource://gre/modules/Services.jsm", {}); |
| michael@0 | 5 | |
| michael@0 | 6 | // Ensure that we have a profile but that the OS.File worker is not launched |
| michael@0 | 7 | add_task(function* init() { |
| michael@0 | 8 | do_get_profile(); |
| michael@0 | 9 | yield File.resetWorker(); |
| michael@0 | 10 | }); |
| michael@0 | 11 | |
| michael@0 | 12 | function getCount(histogram) { |
| michael@0 | 13 | if (histogram == null) { |
| michael@0 | 14 | return 0; |
| michael@0 | 15 | } |
| michael@0 | 16 | |
| michael@0 | 17 | let total = 0; |
| michael@0 | 18 | for (let i of histogram.counts) { |
| michael@0 | 19 | total += i; |
| michael@0 | 20 | } |
| michael@0 | 21 | return total; |
| michael@0 | 22 | } |
| michael@0 | 23 | |
| michael@0 | 24 | // Ensure that launching the OS.File worker adds data to the relevant |
| michael@0 | 25 | // histograms |
| michael@0 | 26 | add_task(function* test_startup() { |
| michael@0 | 27 | let LAUNCH = "OSFILE_WORKER_LAUNCH_MS"; |
| michael@0 | 28 | let READY = "OSFILE_WORKER_READY_MS"; |
| michael@0 | 29 | |
| michael@0 | 30 | let before = Services.telemetry.histogramSnapshots; |
| michael@0 | 31 | |
| michael@0 | 32 | // Launch the OS.File worker |
| michael@0 | 33 | yield File.getCurrentDirectory(); |
| michael@0 | 34 | |
| michael@0 | 35 | let after = Services.telemetry.histogramSnapshots; |
| michael@0 | 36 | |
| michael@0 | 37 | |
| michael@0 | 38 | do_print("Ensuring that we have recorded measures for histograms"); |
| michael@0 | 39 | do_check_eq(getCount(after[LAUNCH]), getCount(before[LAUNCH]) + 1); |
| michael@0 | 40 | do_check_eq(getCount(after[READY]), getCount(before[READY]) + 1); |
| michael@0 | 41 | |
| michael@0 | 42 | do_print("Ensuring that launh <= ready"); |
| michael@0 | 43 | do_check_true(after[LAUNCH].sum <= after[READY].sum); |
| michael@0 | 44 | }); |
| michael@0 | 45 | |
| michael@0 | 46 | // Ensure that calling writeAtomic adds data to the relevant histograms |
| michael@0 | 47 | add_task(function* test_writeAtomic() { |
| michael@0 | 48 | let LABEL = "OSFILE_WRITEATOMIC_JANK_MS"; |
| michael@0 | 49 | |
| michael@0 | 50 | let before = Services.telemetry.histogramSnapshots; |
| michael@0 | 51 | |
| michael@0 | 52 | // Perform a write. |
| michael@0 | 53 | let path = Path.join(Constants.Path.profileDir, "test_osfile_telemetry.tmp"); |
| michael@0 | 54 | yield File.writeAtomic(path, LABEL, { tmpPath: path + ".tmp" } ); |
| michael@0 | 55 | |
| michael@0 | 56 | let after = Services.telemetry.histogramSnapshots; |
| michael@0 | 57 | |
| michael@0 | 58 | do_check_eq(getCount(after[LABEL]), getCount(before[LABEL]) + 1); |
| michael@0 | 59 | }); |
| michael@0 | 60 | |
| michael@0 | 61 | function run_test() { |
| michael@0 | 62 | run_next_test(); |
| michael@0 | 63 | } |
