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author | James M Snell <jasnell@gmail.com> | 2016-08-23 14:16:45 -0700 |
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committer | James M Snell <jasnell@gmail.com> | 2016-08-26 07:15:31 -0700 |
commit | 7053922c1a76ac56ef245923ec171b01cd90d2f4 (patch) | |
tree | 0464984232c835fe6e1d3ac2b429bdaaf77a6cbe /test/parallel/test-buffer-tostring-range.js | |
parent | b3e7ac2605c18c041293cd3ab892c963e1145176 (diff) | |
download | android-node-v8-7053922c1a76ac56ef245923ec171b01cd90d2f4.tar.gz android-node-v8-7053922c1a76ac56ef245923ec171b01cd90d2f4.tar.bz2 android-node-v8-7053922c1a76ac56ef245923ec171b01cd90d2f4.zip |
test: clean up / refactor buffer tests, remove duplication
Remove duplication of buffer tests, separate out into separate
files, update and cleanup code, move to using strictEqual where
possible.
PR-URL: https://github.com/nodejs/node/pull/8256
Reviewed-By: Michaƫl Zasso <mic.besace@gmail.com>
Diffstat (limited to 'test/parallel/test-buffer-tostring-range.js')
-rw-r--r-- | test/parallel/test-buffer-tostring-range.js | 84 |
1 files changed, 84 insertions, 0 deletions
diff --git a/test/parallel/test-buffer-tostring-range.js b/test/parallel/test-buffer-tostring-range.js new file mode 100644 index 0000000000..c7ab356e46 --- /dev/null +++ b/test/parallel/test-buffer-tostring-range.js @@ -0,0 +1,84 @@ +'use strict'; + +require('../common'); +const assert = require('assert'); + +const rangeBuffer = Buffer.from('abc'); + +// if start >= buffer's length, empty string will be returned +assert.strictEqual(rangeBuffer.toString('ascii', 3), ''); +assert.strictEqual(rangeBuffer.toString('ascii', +Infinity), ''); +assert.strictEqual(rangeBuffer.toString('ascii', 3.14, 3), ''); +assert.strictEqual(rangeBuffer.toString('ascii', 'Infinity', 3), ''); + +// if end <= 0, empty string will be returned +assert.strictEqual(rangeBuffer.toString('ascii', 1, 0), ''); +assert.strictEqual(rangeBuffer.toString('ascii', 1, -1.2), ''); +assert.strictEqual(rangeBuffer.toString('ascii', 1, -100), ''); +assert.strictEqual(rangeBuffer.toString('ascii', 1, -Infinity), ''); + +// if start < 0, start will be taken as zero +assert.strictEqual(rangeBuffer.toString('ascii', -1, 3), 'abc'); +assert.strictEqual(rangeBuffer.toString('ascii', -1.99, 3), 'abc'); +assert.strictEqual(rangeBuffer.toString('ascii', -Infinity, 3), 'abc'); +assert.strictEqual(rangeBuffer.toString('ascii', '-1', 3), 'abc'); +assert.strictEqual(rangeBuffer.toString('ascii', '-1.99', 3), 'abc'); +assert.strictEqual(rangeBuffer.toString('ascii', '-Infinity', 3), 'abc'); + +// if start is an invalid integer, start will be taken as zero +assert.strictEqual(rangeBuffer.toString('ascii', 'node.js', 3), 'abc'); +assert.strictEqual(rangeBuffer.toString('ascii', {}, 3), 'abc'); +assert.strictEqual(rangeBuffer.toString('ascii', [], 3), 'abc'); +assert.strictEqual(rangeBuffer.toString('ascii', NaN, 3), 'abc'); +assert.strictEqual(rangeBuffer.toString('ascii', null, 3), 'abc'); +assert.strictEqual(rangeBuffer.toString('ascii', undefined, 3), 'abc'); +assert.strictEqual(rangeBuffer.toString('ascii', false, 3), 'abc'); +assert.strictEqual(rangeBuffer.toString('ascii', '', 3), 'abc'); + +// but, if start is an integer when coerced, then it will be coerced and used. +assert.strictEqual(rangeBuffer.toString('ascii', '-1', 3), 'abc'); +assert.strictEqual(rangeBuffer.toString('ascii', '1', 3), 'bc'); +assert.strictEqual(rangeBuffer.toString('ascii', '-Infinity', 3), 'abc'); +assert.strictEqual(rangeBuffer.toString('ascii', '3', 3), ''); +assert.strictEqual(rangeBuffer.toString('ascii', Number(3), 3), ''); +assert.strictEqual(rangeBuffer.toString('ascii', '3.14', 3), ''); +assert.strictEqual(rangeBuffer.toString('ascii', '1.99', 3), 'bc'); +assert.strictEqual(rangeBuffer.toString('ascii', '-1.99', 3), 'abc'); +assert.strictEqual(rangeBuffer.toString('ascii', 1.99, 3), 'bc'); +assert.strictEqual(rangeBuffer.toString('ascii', true, 3), 'bc'); + +// if end > buffer's length, end will be taken as buffer's length +assert.strictEqual(rangeBuffer.toString('ascii', 0, 5), 'abc'); +assert.strictEqual(rangeBuffer.toString('ascii', 0, 6.99), 'abc'); +assert.strictEqual(rangeBuffer.toString('ascii', 0, Infinity), 'abc'); +assert.strictEqual(rangeBuffer.toString('ascii', 0, '5'), 'abc'); +assert.strictEqual(rangeBuffer.toString('ascii', 0, '6.99'), 'abc'); +assert.strictEqual(rangeBuffer.toString('ascii', 0, 'Infinity'), 'abc'); + +// if end is an invalid integer, end will be taken as buffer's length +assert.strictEqual(rangeBuffer.toString('ascii', 0, 'node.js'), ''); +assert.strictEqual(rangeBuffer.toString('ascii', 0, {}), ''); +assert.strictEqual(rangeBuffer.toString('ascii', 0, NaN), ''); +assert.strictEqual(rangeBuffer.toString('ascii', 0, undefined), 'abc'); +assert.strictEqual(rangeBuffer.toString('ascii', 0), 'abc'); +assert.strictEqual(rangeBuffer.toString('ascii', 0, null), ''); +assert.strictEqual(rangeBuffer.toString('ascii', 0, []), ''); +assert.strictEqual(rangeBuffer.toString('ascii', 0, false), ''); +assert.strictEqual(rangeBuffer.toString('ascii', 0, ''), ''); + +// but, if end is an integer when coerced, then it will be coerced and used. +assert.strictEqual(rangeBuffer.toString('ascii', 0, '-1'), ''); +assert.strictEqual(rangeBuffer.toString('ascii', 0, '1'), 'a'); +assert.strictEqual(rangeBuffer.toString('ascii', 0, '-Infinity'), ''); +assert.strictEqual(rangeBuffer.toString('ascii', 0, '3'), 'abc'); +assert.strictEqual(rangeBuffer.toString('ascii', 0, Number(3)), 'abc'); +assert.strictEqual(rangeBuffer.toString('ascii', 0, '3.14'), 'abc'); +assert.strictEqual(rangeBuffer.toString('ascii', 0, '1.99'), 'a'); +assert.strictEqual(rangeBuffer.toString('ascii', 0, '-1.99'), ''); +assert.strictEqual(rangeBuffer.toString('ascii', 0, 1.99), 'a'); +assert.strictEqual(rangeBuffer.toString('ascii', 0, true), 'a'); + +// try toString() with a object as a encoding +assert.strictEqual(rangeBuffer.toString({toString: function() { + return 'ascii'; +}}), 'abc'); |