4e35134f7a
This reverts commit 0a2b996278.
Reason for revert: Broke postgres tests.
Change-Id: I27d8e0c807ad5f0748b9611a4f3df84cc213fbe1
367 lines
9 KiB
PHP
367 lines
9 KiB
PHP
<?php
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class JavaScriptMinifierTest extends PHPUnit\Framework\TestCase {
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use MediaWikiCoversValidator;
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protected function tearDown() {
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parent::tearDown();
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// Reset
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$this->setMaxLineLength( 1000 );
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}
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private function setMaxLineLength( $val ) {
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$classReflect = new ReflectionClass( JavaScriptMinifier::class );
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$propertyReflect = $classReflect->getProperty( 'maxLineLength' );
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$propertyReflect->setAccessible( true );
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$propertyReflect->setValue( JavaScriptMinifier::class, $val );
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}
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public static function provideCases() {
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return [
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// Basic whitespace and comments that should be stripped entirely
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[ "\r\t\f \v\n\r", "" ],
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[ "/* Foo *\n*bar\n*/", "" ],
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/**
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* Slashes used inside block comments (T28931).
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* At some point there was a bug that caused this comment to be ended at '* /',
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* causing /M... to be left as the beginning of a regex.
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*/
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[
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"/**\n * Foo\n * {\n * 'bar' : {\n * "
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. "//Multiple rules with configurable operators\n * 'baz' : false\n * }\n */",
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"" ],
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/**
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* ' Foo \' bar \
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* baz \' quox ' .
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*/
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[
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"' Foo \\' bar \\\n baz \\' quox ' .length",
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"' Foo \\' bar \\\n baz \\' quox '.length"
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],
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[
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"\" Foo \\\" bar \\\n baz \\\" quox \" .length",
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"\" Foo \\\" bar \\\n baz \\\" quox \".length"
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],
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[ "// Foo b/ar baz", "" ],
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[
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"/ Foo \\/ bar [ / \\] / ] baz / .length",
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"/ Foo \\/ bar [ / \\] / ] baz /.length"
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],
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// HTML comments
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[ "<!-- Foo bar", "" ],
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[ "<!-- Foo --> bar", "" ],
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[ "--> Foo", "" ],
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[ "x --> y", "x-->y" ],
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// Semicolon insertion
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[ "(function(){return\nx;})", "(function(){return\nx;})" ],
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[ "throw\nx;", "throw\nx;" ],
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[ "while(p){continue\nx;}", "while(p){continue\nx;}" ],
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[ "while(p){break\nx;}", "while(p){break\nx;}" ],
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[ "var\nx;", "var x;" ],
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[ "x\ny;", "x\ny;" ],
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[ "x\n++y;", "x\n++y;" ],
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[ "x\n!y;", "x\n!y;" ],
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[ "x\n{y}", "x\n{y}" ],
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[ "x\n+y;", "x+y;" ],
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[ "x\n(y);", "x(y);" ],
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[ "5.\nx;", "5.\nx;" ],
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[ "0xFF.\nx;", "0xFF.x;" ],
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[ "5.3.\nx;", "5.3.x;" ],
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// Cover failure case for incomplete hex literal
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[ "0x;", false, false ],
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// Cover failure case for number with no digits after E
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[ "1.4E", false, false ],
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// Cover failure case for number with several E
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[ "1.4EE2", false, false ],
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[ "1.4EE", false, false ],
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// Cover failure case for number with several E (nonconsecutive)
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// FIXME: This is invalid, but currently tolerated
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[ "1.4E2E3", "1.4E2 E3", false ],
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// Semicolon insertion between an expression having an inline
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// comment after it, and a statement on the next line (T29046).
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[
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"var a = this //foo bar \n for ( b = 0; c < d; b++ ) {}",
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"var a=this\nfor(b=0;c<d;b++){}"
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],
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// Cover failure case of incomplete regexp at end of file (T75556)
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// FIXME: This is invalid, but currently tolerated
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[ "*/", "*/", false ],
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// Cover failure case of incomplete char class in regexp (T75556)
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// FIXME: This is invalid, but currently tolerated
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[ "/a[b/.test", "/a[b/.test", false ],
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// Cover failure case of incomplete string at end of file (T75556)
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// FIXME: This is invalid, but currently tolerated
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[ "'a", "'a", false ],
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// Token separation
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[ "x in y", "x in y" ],
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[ "/x/g in y", "/x/g in y" ],
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[ "x in 30", "x in 30" ],
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[ "x + ++ y", "x+ ++y" ],
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[ "x ++ + y", "x++ +y" ],
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[ "x / /y/.exec(z)", "x/ /y/.exec(z)" ],
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// State machine
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[ "/ x/g", "/ x/g" ],
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[ "(function(){return/ x/g})", "(function(){return/ x/g})" ],
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[ "+/ x/g", "+/ x/g" ],
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[ "++/ x/g", "++/ x/g" ],
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[ "x/ x/g", "x/x/g" ],
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[ "(/ x/g)", "(/ x/g)" ],
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[ "if(/ x/g);", "if(/ x/g);" ],
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[ "(x/ x/g)", "(x/x/g)" ],
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[ "([/ x/g])", "([/ x/g])" ],
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[ "+x/ x/g", "+x/x/g" ],
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[ "{}/ x/g", "{}/ x/g" ],
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[ "+{}/ x/g", "+{}/x/g" ],
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[ "(x)/ x/g", "(x)/x/g" ],
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[ "if(x)/ x/g", "if(x)/ x/g" ],
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[ "for(x;x;{}/ x/g);", "for(x;x;{}/x/g);" ],
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[ "x;x;{}/ x/g", "x;x;{}/ x/g" ],
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[ "x:{}/ x/g", "x:{}/ x/g" ],
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[ "switch(x){case y?z:{}/ x/g:{}/ x/g;}", "switch(x){case y?z:{}/x/g:{}/ x/g;}" ],
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[ "function x(){}/ x/g", "function x(){}/ x/g" ],
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[ "+function x(){}/ x/g", "+function x(){}/x/g" ],
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// Multiline quoted string
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[ "var foo=\"\\\nblah\\\n\";", "var foo=\"\\\nblah\\\n\";" ],
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// Multiline quoted string followed by string with spaces
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[
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"var foo=\"\\\nblah\\\n\";\nvar baz = \" foo \";\n",
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"var foo=\"\\\nblah\\\n\";var baz=\" foo \";"
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],
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// URL in quoted string ( // is not a comment)
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[
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"aNode.setAttribute('href','http://foo.bar.org/baz');",
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"aNode.setAttribute('href','http://foo.bar.org/baz');"
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],
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// URL in quoted string after multiline quoted string
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[
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"var foo=\"\\\nblah\\\n\";\naNode.setAttribute('href','http://foo.bar.org/baz');",
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"var foo=\"\\\nblah\\\n\";aNode.setAttribute('href','http://foo.bar.org/baz');"
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],
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// Division vs. regex nastiness
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[
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"alert( (10+10) / '/'.charCodeAt( 0 ) + '//' );",
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"alert((10+10)/'/'.charCodeAt(0)+'//');"
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],
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[ "if(1)/a /g.exec('Pa ss');", "if(1)/a /g.exec('Pa ss');" ],
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// Unicode letter characters should pass through ok in identifiers (T33187)
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[ "var KaŝSkatolVal = {}", 'var KaŝSkatolVal={}' ],
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// Per spec unicode char escape values should work in identifiers,
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// as long as it's a valid char. In future it might get normalized.
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[ "var Ka\\u015dSkatolVal = {}", 'var Ka\\u015dSkatolVal={}' ],
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// Some structures that might look invalid at first sight
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[ "var a = 5.;", "var a=5.;" ],
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[ "5.0.toString();", "5.0.toString();" ],
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[ "5..toString();", "5..toString();" ],
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// Cover failure case for too many decimal points
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[ "5...toString();", false ],
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[ "5.\n.toString();", '5..toString();' ],
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// Boolean minification (!0 / !1)
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[ "var a = { b: true };", "var a={b:!0};" ],
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[ "var a = { true: 12 };", "var a={true:12};" ],
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[ "a.true = 12;", "a.true=12;" ],
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[ "a.foo = true;", "a.foo=!0;" ],
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[ "a.foo = false;", "a.foo=!1;" ],
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];
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}
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/**
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* @dataProvider provideCases
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* @covers JavaScriptMinifier::minify
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* @covers JavaScriptMinifier::parseError
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*/
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public function testMinifyOutput( $code, $expectedOutput, $expectedValid = true ) {
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$minified = JavaScriptMinifier::minify( $code );
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// JSMin+'s parser will throw an exception if output is not valid JS.
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// suppression of warnings needed for stupid crap
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if ( $expectedValid ) {
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Wikimedia\suppressWarnings();
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$parser = new JSParser();
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Wikimedia\restoreWarnings();
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$parser->parse( $minified, 'minify-test.js', 1 );
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}
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$this->assertEquals(
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$expectedOutput,
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$minified,
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"Minified output should be in the form expected."
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);
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}
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public static function provideLineBreaker() {
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return [
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[
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// Regression tests for T34548.
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// Must not break between 'E' and '+'.
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'var name = 1.23456789E55;',
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[
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'var',
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'name',
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'=',
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'1.23456789E55',
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';',
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],
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],
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[
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'var name = 1.23456789E+5;',
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[
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'var',
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'name',
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'=',
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'1.23456789E+5',
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';',
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],
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],
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[
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'var name = 1.23456789E-5;',
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[
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'var',
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'name',
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'=',
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'1.23456789E-5',
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';',
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],
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],
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[
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// Must not break before '++'
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'if(x++);',
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[
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'if',
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'(',
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'x++',
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')',
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';',
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],
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],
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[
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// Regression test for T201606.
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// Must not break between 'return' and Expression.
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// Was caused by bad state after '{}' in property value.
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<<<JAVASCRIPT
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call( function () {
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try {
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} catch (e) {
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obj = {
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key: 1 ? 0 : {}
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};
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}
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return name === 'input';
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} );
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JAVASCRIPT
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,
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[
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'call',
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'(',
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'function',
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'(',
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')',
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'{',
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'try',
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'{',
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'}',
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'catch',
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'(',
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'e',
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')',
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'{',
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'obj',
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'=',
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'{',
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'key',
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':',
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'1',
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'?',
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'0',
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':',
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'{',
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'}',
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'}',
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';',
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'}',
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// The return Statement:
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// return [no LineTerminator here] Expression
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'return name',
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'===',
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"'input'",
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';',
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'}',
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')',
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';',
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]
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],
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[
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// Regression test for T201606.
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// Must not break between 'return' and Expression.
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// Was caused by bad state after a ternary in the expression value
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// for a key in an object literal.
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<<<JAVASCRIPT
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call( {
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key: 1 ? 0 : function () {
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return this;
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}
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} );
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JAVASCRIPT
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,
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[
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'call',
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'(',
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'{',
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'key',
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':',
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'1',
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'?',
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'0',
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':',
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'function',
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'(',
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')',
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'{',
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'return this',
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';',
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'}',
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'}',
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')',
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';',
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]
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],
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];
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}
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/**
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* @dataProvider provideLineBreaker
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* @covers JavaScriptMinifier::minify
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*/
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public function testLineBreaker( $code, array $expectedLines ) {
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$this->setMaxLineLength( 1 );
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$actual = JavaScriptMinifier::minify( $code );
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$this->assertEquals(
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array_merge( [ '' ], $expectedLines ),
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explode( "\n", $actual )
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);
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}
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}
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