Differential D20477 Diff 48944 src/applications/differential/parser/__tests__/DifferentialTabReplacementTestCase.php

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Standalone View

				<?php

				final class DifferentialTabReplacementTestCase
				extends PhabricatorTestCase {

				public function testTabReplacement() {
				$tab1 = "<span data-copy-text=\"\t\"> </span>";
				$tab2 = "<span data-copy-text=\"\t\"> </span>";

				$cat = "\xF0\x9F\x90\xB1";

				$cases = array(
				'' => '',
				'x' => 'x',

				// Tabs inside HTML tags should not be replaced.
				"<\t>x" => "<\t>x",

				// Normal tabs should be replaced. These are all aligned to the tab
				// width, so they'll be replaced inline.
				"\tx" => "{$tab2}x",
				" \tx" => " {$tab2}x",
				"\t x" => "{$tab2} x",
				"aa\tx" => "aa{$tab2}x",
				"aa \tx" => "aa {$tab2}x",
				"aa\t x" => "aa{$tab2} x",

				// This tab is not tabstop-aligned, so it is replaced with fewer
				// spaces to bring us to the next tabstop.
				" \tx" => " {$tab1}x",

				// Text inside HTML tags should not count when aligning tabs with
				// tabstops.
				"<tag> </tag>\tx" => "<tag> </tag>{$tab1}x",
				"<tag2> </tag>\tx" => "<tag2> </tag>{$tab1}x",

				// The code has to take a slow path when inputs contain unicode, but
				// should produce the right results and align tabs to tabstops while
				// respecting UTF8 display character widths, not byte widths.
				"{$cat}\tx" => "{$cat}{$tab1}x",
				"{$cat}{$cat}\tx" => "{$cat}{$cat}{$tab2}x",
				);

				foreach ($cases as $input => $expect) {
				$actual = DifferentialChangesetParser::replaceTabsWithSpaces(
				$input,
				2);

				$this->assertEqual(
				$expect,
				$actual,
				pht('Tabs to Spaces: %s', $input));
				}
				}

				}