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test: cover util.format() format placeholders

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This commit adds coverage for several edge cases related to
util.format() format string placeholders.

PR-URL: https://github.com/nodejs/node/pull/13159
Reviewed-By: Refael Ackermann <refack@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: Daijiro Wachi <daijiro.wachi@gmail.com>
Reviewed-By: Evan Lucas <evanlucas@me.com>
Reviewed-By: Anna Henningsen <anna@addaleax.net>
This commit is contained in:
cjihrig 2017-05-22 15:11:28 -04:00 committed by Anna Henningsen
parent 25ade76fb0
commit 0903dcf80c
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1 changed files with 10 additions and 0 deletions
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10
test/parallel/test-util-format.js
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@ -57,6 +57,8 @@ assert.strictEqual(util.format('%d', '42.0'), '42');
assert.strictEqual(util.format('%d', 1.5), '1.5');
assert.strictEqual(util.format('%d', -0.5), '-0.5');
assert.strictEqual(util.format('%d', ''), '0');
assert.strictEqual(util.format('%d %d', 42, 43), '42 43');
assert.strictEqual(util.format('%d %d', 42), '42 %d');
// Integer format specifier
assert.strictEqual(util.format('%i'), '%i');
@ -67,6 +69,8 @@ assert.strictEqual(util.format('%i', '42.0'), '42');
assert.strictEqual(util.format('%i', 1.5), '1');
assert.strictEqual(util.format('%i', -0.5), '0');
assert.strictEqual(util.format('%i', ''), 'NaN');
assert.strictEqual(util.format('%i %i', 42, 43), '42 43');
assert.strictEqual(util.format('%i %i', 42), '42 %i');
// Float format specifier
assert.strictEqual(util.format('%f'), '%f');
@ -78,6 +82,8 @@ assert.strictEqual(util.format('%f', 1.5), '1.5');
assert.strictEqual(util.format('%f', -0.5), '-0.5');
assert.strictEqual(util.format('%f', Math.PI), '3.141592653589793');
assert.strictEqual(util.format('%f', ''), 'NaN');
assert.strictEqual(util.format('%f %f', 42, 43), '42 43');
assert.strictEqual(util.format('%f %f', 42), '42 %f');
// String format specifier
assert.strictEqual(util.format('%s'), '%s');
@ -85,11 +91,15 @@ assert.strictEqual(util.format('%s', undefined), 'undefined');
assert.strictEqual(util.format('%s', 'foo'), 'foo');
assert.strictEqual(util.format('%s', 42), '42');
assert.strictEqual(util.format('%s', '42'), '42');
assert.strictEqual(util.format('%s %s', 42, 43), '42 43');
assert.strictEqual(util.format('%s %s', 42), '42 %s');
// JSON format specifier
assert.strictEqual(util.format('%j'), '%j');
assert.strictEqual(util.format('%j', 42), '42');
assert.strictEqual(util.format('%j', '42'), '"42"');
assert.strictEqual(util.format('%j %j', 42, 43), '42 43');
assert.strictEqual(util.format('%j %j', 42), '42 %j');
// Various format specifiers
assert.strictEqual(util.format('%%s%s', 'foo'), '%sfoo');