a84e2e3307
Sometimes it is useful to print numbers in hex format - add the appropriate specifier. Also support a minimum field width to pad the formatted string with spaces (or zeros if the width is prefixed with '0'). https://bugzilla.gnome.org/show_bug.cgi?id=622597
37 lines
1.2 KiB
JavaScript
37 lines
1.2 KiB
JavaScript
/* -*- mode: js2; js2-basic-offset: 4; indent-tabs-mode: nil -*- */
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/*
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* Test cases for the Format module
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*/
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const JsUnit = imports.jsUnit;
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const assertEquals = JsUnit.assertEquals;
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const assertRaises = JsUnit.assertRaises;
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// We can't depend on environment.js to set up the String.prototype.format,
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// because the tests run in one JS context, and the imports run in the GJS
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// "load context" which has its own copy of the String class
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const Format = imports.misc.format;
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String.prototype.format = Format.format;
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// Test common usage and %% handling
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assertEquals("foo", "%s".format('foo'));
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assertEquals("%s", "%%s".format('foo'));
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assertEquals("%%s", "%%%%s".format('foo'));
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assertEquals("foo 5", "%s %d".format('foo', 5));
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assertEquals("8", "%d".format(8));
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assertEquals("f", "%x".format(15));
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assertEquals("2.58 6.96", "%f %.2f".format(2.58, 6.958));
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// Test field width
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assertEquals("007 foo", "%03d %4s".format(7, 'foo'));
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assertEquals(" 2.58 06.96", "%5f %05.2f".format(2.58, 6.958));
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assertEquals("cafe", "%2x".format(0xcafe));
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assertEquals("foo", "%0s".format('foo'));
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// Precision is only allowed for %f
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assertRaises(function() { "%.2d".format(5.21) });
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// Wrong conversion character ' '
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assertRaises( function() { "%s is 50% done".format('foo') });
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