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author | Matt A. Tobin <mattatobin@localhost.localdomain> | 2018-02-02 04:16:08 -0500 |
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committer | Matt A. Tobin <mattatobin@localhost.localdomain> | 2018-02-02 04:16:08 -0500 |
commit | 5f8de423f190bbb79a62f804151bc24824fa32d8 (patch) | |
tree | 10027f336435511475e392454359edea8e25895d /toolkit/components/osfile/tests/xpcshell/test_compression.js | |
parent | 49ee0794b5d912db1f95dce6eb52d781dc210db5 (diff) | |
download | UXP-5f8de423f190bbb79a62f804151bc24824fa32d8.tar UXP-5f8de423f190bbb79a62f804151bc24824fa32d8.tar.gz UXP-5f8de423f190bbb79a62f804151bc24824fa32d8.tar.lz UXP-5f8de423f190bbb79a62f804151bc24824fa32d8.tar.xz UXP-5f8de423f190bbb79a62f804151bc24824fa32d8.zip |
Add m-esr52 at 52.6.0
Diffstat (limited to 'toolkit/components/osfile/tests/xpcshell/test_compression.js')
-rw-r--r-- | toolkit/components/osfile/tests/xpcshell/test_compression.js | 98 |
1 files changed, 98 insertions, 0 deletions
diff --git a/toolkit/components/osfile/tests/xpcshell/test_compression.js b/toolkit/components/osfile/tests/xpcshell/test_compression.js new file mode 100644 index 000000000..b40235615 --- /dev/null +++ b/toolkit/components/osfile/tests/xpcshell/test_compression.js @@ -0,0 +1,98 @@ +/* Any copyright is dedicated to the Public Domain. + * http://creativecommons.org/publicdomain/zero/1.0/ */ + +"use strict"; + +Components.utils.import("resource://gre/modules/osfile.jsm"); + +function run_test() { + do_test_pending(); + run_next_test(); +} + +add_task(function test_compress_lz4() { + let path = OS.Path.join(OS.Constants.Path.tmpDir, "compression.lz"); + let length = 1024; + let array = new Uint8Array(length); + for (let i = 0; i < array.byteLength; ++i) { + array[i] = i; + } + let arrayAsString = Array.prototype.join.call(array); + + do_print("Writing data with lz4 compression"); + let bytes = yield OS.File.writeAtomic(path, array, { compression: "lz4" }); + do_print("Compressed " + length + " bytes into " + bytes); + + do_print("Reading back with lz4 decompression"); + let decompressed = yield OS.File.read(path, { compression: "lz4" }); + do_print("Decompressed into " + decompressed.byteLength + " bytes"); + do_check_eq(arrayAsString, Array.prototype.join.call(decompressed)); +}); + +add_task(function test_uncompressed() { + do_print("Writing data without compression"); + let path = OS.Path.join(OS.Constants.Path.tmpDir, "no_compression.tmp"); + let array = new Uint8Array(1024); + for (let i = 0; i < array.byteLength; ++i) { + array[i] = i; + } + let bytes = yield OS.File.writeAtomic(path, array); // No compression + + let exn; + // Force decompression, reading should fail + try { + yield OS.File.read(path, { compression: "lz4" }); + } catch (ex) { + exn = ex; + } + do_check_true(!!exn); + // Check the exception message (and that it contains the file name) + do_check_true(exn.message.indexOf(`Invalid header (no magic number) - Data: ${ path }`) != -1); +}); + +add_task(function test_no_header() { + let path = OS.Path.join(OS.Constants.Path.tmpDir, "no_header.tmp"); + let array = new Uint8Array(8).fill(0,0); // Small array with no header + + do_print("Writing data with no header"); + + let bytes = yield OS.File.writeAtomic(path, array); // No compression + let exn; + // Force decompression, reading should fail + try { + yield OS.File.read(path, { compression: "lz4" }); + } catch (ex) { + exn = ex; + } + do_check_true(!!exn); + // Check the exception message (and that it contains the file name) + do_check_true(exn.message.indexOf(`Buffer is too short (no header) - Data: ${ path }`) != -1); +}); + +add_task(function test_invalid_content() { + let path = OS.Path.join(OS.Constants.Path.tmpDir, "invalid_content.tmp"); + let arr1 = new Uint8Array([109, 111, 122, 76, 122, 52, 48, 0]); + let arr2 = new Uint8Array(248).fill(1,0); + + let array = new Uint8Array(arr1.length + arr2.length); + array.set(arr1); + array.set(arr2, arr1.length); + + do_print("Writing invalid data (with a valid header and only ones after that)"); + + let bytes = yield OS.File.writeAtomic(path, array); // No compression + let exn; + // Force decompression, reading should fail + try { + yield OS.File.read(path, { compression: "lz4" }); + } catch (ex) { + exn = ex; + } + do_check_true(!!exn); + // Check the exception message (and that it contains the file name) + do_check_true(exn.message.indexOf(`Invalid content: Decompression stopped at 0 - Data: ${ path }`) != -1); +}); + +add_task(function() { + do_test_finished(); +});
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