#!/usr/bin/env python # -*- coding: utf-8 -*- import re import unittest import jsbeautifier class TestJSBeautifier(unittest.TestCase): def test_unescape(self): # Test cases contributed by test_fragment = self.decodesto bt = self.bt bt('"\\\\s"'); # == "\\s" in the js source bt("'\\\\s'"); # == '\\s' in the js source bt("'\\\\\\s'"); # == '\\\s' in the js source bt("'\\s'"); # == '\s' in the js source bt('"•"'); bt('"—"'); #bt('"\x41\x42\x43\x01"', '"ABC\\x01"'); bt('"\u2022"', '"\u2022"'); bt('a = /\s+/') #bt('a = /\x41/','a = /A/') bt('"\u2022";a = /\s+/;"\x41\x42\x43\x01".match(/\x41/);','"\u2022";\na = /\s+/;\n"\x41\x42\x43\x01".match(/\x41/);') def test_beautifier(self): test_fragment = self.decodesto bt = self.bt bt(''); bt('return .5'); test_fragment(' return .5'); bt('a = 1', 'a = 1'); bt('a=1', 'a = 1'); bt("a();\n\nb();", "a();\n\nb();"); bt('var a = 1 var b = 2', "var a = 1\nvar b = 2"); bt('var a=1, b=c[d], e=6;', 'var a = 1,\n b = c[d],\n e = 6;'); bt('a = " 12345 "'); bt("a = ' 12345 '"); bt('if (a == 1) b = 2;', "if (a == 1) b = 2;"); bt('if(1){2}else{3}', "if (1) {\n 2\n} else {\n 3\n}"); bt('if (foo) bar();\nelse\ncar();', 'if (foo) bar();\nelse car();'); bt('if(1||2);', 'if (1 || 2);'); bt('(a==1)||(b==2)', '(a == 1) || (b == 2)'); bt('var a = 1 if (2) 3;', "var a = 1\nif (2) 3;"); bt('a = a + 1'); bt('a = a == 1'); bt('/12345[^678]*9+/.match(a)'); bt('a /= 5'); bt('a = 0.5 * 3'); bt('a *= 10.55'); bt('a < .5'); bt('a <= .5'); bt('a<.5', 'a < .5'); bt('a<=.5', 'a <= .5'); bt('a = 0xff;'); bt('a=0xff+4', 'a = 0xff + 4'); bt('a = [1, 2, 3, 4]'); bt('F*(g/=f)*g+b', 'F * (g /= f) * g + b'); bt('a.b({c:d})', "a.b({\n c: d\n})"); bt('a.b\n(\n{\nc:\nd\n}\n)', "a.b({\n c: d\n})"); bt('a=!b', 'a = !b'); bt('a?b:c', 'a ? b : c'); bt('a?1:2', 'a ? 1 : 2'); bt('a?(b):c', 'a ? (b) : c'); bt('x={a:1,b:w=="foo"?x:y,c:z}', 'x = {\n a: 1,\n b: w == "foo" ? x : y,\n c: z\n}'); bt('x=a?b?c?d:e:f:g;', 'x = a ? b ? c ? d : e : f : g;'); bt('x=a?b?c?d:{e1:1,e2:2}:f:g;', 'x = a ? b ? c ? d : {\n e1: 1,\n e2: 2\n} : f : g;'); bt('function void(void) {}'); bt('if(!a)foo();', 'if (!a) foo();'); bt('a=~a', 'a = ~a'); bt('a;/*comment*/b;', "a; /*comment*/\nb;"); bt('a;/* comment */b;', "a; /* comment */\nb;"); test_fragment('a;/*\ncomment\n*/b;', "a;\n/*\ncomment\n*/\nb;"); # simple comments don't get touched at all bt('a;/**\n* javadoc\n*/b;', "a;\n/**\n * javadoc\n */\nb;"); test_fragment('a;/**\n\nno javadoc\n*/b;', "a;\n/**\n\nno javadoc\n*/\nb;"); bt('a;/*\n* javadoc\n*/b;', "a;\n/*\n * javadoc\n */\nb;"); # comment blocks detected and reindented even w/o javadoc starter bt('if(a)break;', "if (a) break;"); bt('if(a){break}', "if (a) {\n break\n}"); bt('if((a))foo();', 'if ((a)) foo();'); bt('for(var i=0;;)', 'for (var i = 0;;)'); bt('a++;', 'a++;'); bt('for(;;i++)', 'for (;; i++)'); bt('for(;;++i)', 'for (;; ++i)'); bt('return(1)', 'return (1)'); bt('try{a();}catch(b){c();}finally{d();}', "try {\n a();\n} catch (b) {\n c();\n} finally {\n d();\n}"); bt('(xx)()'); # magic function call bt('a[1]()'); # another magic function call bt('if(a){b();}else if(c) foo();', "if (a) {\n b();\n} else if (c) foo();"); bt('switch(x) {case 0: case 1: a(); break; default: break}', "switch (x) {\ncase 0:\ncase 1:\n a();\n break;\ndefault:\n break\n}"); bt('switch(x){case -1:break;case !y:break;}', 'switch (x) {\ncase -1:\n break;\ncase !y:\n break;\n}'); bt('a !== b'); bt('if (a) b(); else c();', "if (a) b();\nelse c();"); bt("// comment\n(function something() {})"); # typical greasemonkey start bt("{\n\n x();\n\n}"); # was: duplicating newlines bt('if (a in b) foo();'); bt('var a, b'); bt('{a:1, b:2}', "{\n a: 1,\n b: 2\n}"); bt('a={1:[-1],2:[+1]}', 'a = {\n 1: [-1],\n 2: [+1]\n}'); bt('var l = {\'a\':\'1\', \'b\':\'2\'}', "var l = {\n 'a': '1',\n 'b': '2'\n}"); bt('if (template.user[n] in bk) foo();'); bt('{{}/z/}', "{\n {}\n /z/\n}"); bt('return 45', "return 45"); bt('If[1]', "If[1]"); bt('Then[1]', "Then[1]"); bt('a = 1e10', "a = 1e10"); bt('a = 1.3e10', "a = 1.3e10"); bt('a = 1.3e-10', "a = 1.3e-10"); bt('a = -1.3e-10', "a = -1.3e-10"); bt('a = 1e-10', "a = 1e-10"); bt('a = e - 10', "a = e - 10"); bt('a = 11-10', "a = 11 - 10"); bt("a = 1;// comment\n", "a = 1; // comment"); bt("a = 1; // comment\n", "a = 1; // comment"); bt("a = 1;\n // comment\n", "a = 1;\n// comment"); bt('o = [{a:b},{c:d}]', 'o = [{\n a: b\n}, {\n c: d\n}]'); bt("if (a) {\n do();\n}"); # was: extra space appended bt("if\n(a)\nb();", "if (a) b();"); # test for proper newline removal bt("if (a) {\n// comment\n}else{\n// comment\n}", "if (a) {\n // comment\n} else {\n // comment\n}"); # if/else statement with empty body bt("if (a) {\n// comment\n// comment\n}", "if (a) {\n // comment\n // comment\n}"); # multiple comments indentation bt("if (a) b() else c();", "if (a) b()\nelse c();"); bt("if (a) b() else if c() d();", "if (a) b()\nelse if c() d();"); bt("{}"); bt("{\n\n}"); bt("do { a(); } while ( 1 );", "do {\n a();\n} while (1);"); bt("do {} while (1);"); bt("do {\n} while (1);", "do {} while (1);"); bt("do {\n\n} while (1);"); bt("var a = x(a, b, c)"); bt("delete x if (a) b();", "delete x\nif (a) b();"); bt("delete x[x] if (a) b();", "delete x[x]\nif (a) b();"); bt("for(var a=1,b=2)", "for (var a = 1, b = 2)"); bt("for(var a=1,b=2,c=3)", "for (var a = 1, b = 2, c = 3)"); bt("for(var a=1,b=2,c=3;d<3;d++)", "for (var a = 1, b = 2, c = 3; d < 3; d++)"); bt("function x(){(a||b).c()}", "function x() {\n (a || b).c()\n}"); bt("function x(){return - 1}", "function x() {\n return -1\n}"); bt("function x(){return ! a}", "function x() {\n return !a\n}"); # a common snippet in jQuery plugins bt("settings = $.extend({},defaults,settings);", "settings = $.extend({}, defaults, settings);"); bt('{xxx;}()', '{\n xxx;\n}()'); bt("a = 'a'\nb = 'b'"); bt("a = /reg/exp"); bt("a = /reg/"); bt('/abc/.test()'); bt('/abc/i.test()'); bt("{/abc/i.test()}", "{\n /abc/i.test()\n}"); bt('var x=(a)/a;', 'var x = (a) / a;'); bt('x != -1', 'x != -1'); bt('for (; s-->0;)', 'for (; s-- > 0;)'); bt('for (; s++>0;)', 'for (; s++ > 0;)'); bt('a = s++>s--;', 'a = s++ > s--;'); bt('a = s++>--s;', 'a = s++ > --s;'); bt('{x=#1=[]}', '{\n x = #1=[]\n}'); bt('{a:#1={}}', '{\n a: #1={}\n}'); bt('{a:#1#}', '{\n a: #1#\n}'); test_fragment('{a:1},{a:2}', '{\n a: 1\n}, {\n a: 2\n}'); test_fragment('var ary=[{a:1}, {a:2}];', 'var ary = [{\n a: 1\n}, {\n a: 2\n}];'); test_fragment('{a:#1', '{\n a: #1'); # incomplete test_fragment('{a:#', '{\n a: #'); # incomplete test_fragment('}}}', '}\n}\n}'); # incomplete test_fragment('', ''); test_fragment('a=/regexp', 'a = /regexp'); # incomplete regexp bt('{a:#1=[],b:#1#,c:#999999#}', '{\n a: #1=[],\n b: #1#,\n c: #999999#\n}'); bt("a = 1e+2"); bt("a = 1e-2"); bt("do{x()}while(a>1)", "do {\n x()\n} while (a > 1)"); bt("x(); /reg/exp.match(something)", "x();\n/reg/exp.match(something)"); test_fragment("something();(", "something();\n("); test_fragment("#!she/bangs, she bangs\nf=1", "#!she/bangs, she bangs\n\nf = 1"); test_fragment("#!she/bangs, she bangs\n\nf=1", "#!she/bangs, she bangs\n\nf = 1"); test_fragment("#!she/bangs, she bangs\n\n/* comment */", "#!she/bangs, she bangs\n\n/* comment */"); test_fragment("#!she/bangs, she bangs\n\n\n/* comment */", "#!she/bangs, she bangs\n\n\n/* comment */"); test_fragment("#", "#"); test_fragment("#!", "#!"); bt("function namespace::something()"); test_fragment("", ""); test_fragment("", ""); bt('{foo();--bar;}', '{\n foo();\n --bar;\n}'); bt('{foo();++bar;}', '{\n foo();\n ++bar;\n}'); bt('{--bar;}', '{\n --bar;\n}'); bt('{++bar;}', '{\n ++bar;\n}'); # regexps bt('a(/abc\\/\\/def/);b()', "a(/abc\\/\\/def/);\nb()"); bt('a(/a[b\\[\\]c]d/);b()', "a(/a[b\\[\\]c]d/);\nb()"); test_fragment('a(/a[b\\[', "a(/a[b\\["); # incomplete char class # allow unescaped / in char classes bt('a(/[a/b]/);b()', "a(/[a/b]/);\nb()"); bt('a=[[1,2],[4,5],[7,8]]', "a = [\n [1, 2],\n [4, 5],\n [7, 8]\n]"); bt('a=[a[1],b[4],c[d[7]]]', "a = [a[1], b[4], c[d[7]]]"); bt('[1,2,[3,4,[5,6],7],8]', "[1, 2, [3, 4, [5, 6], 7], 8]"); bt('[[["1","2"],["3","4"]],[["5","6","7"],["8","9","0"]],[["1","2","3"],["4","5","6","7"],["8","9","0"]]]', '[\n [\n ["1", "2"],\n ["3", "4"]\n ],\n [\n ["5", "6", "7"],\n ["8", "9", "0"]\n ],\n [\n ["1", "2", "3"],\n ["4", "5", "6", "7"],\n ["8", "9", "0"]\n ]\n]'); bt('{[x()[0]];indent;}', '{\n [x()[0]];\n indent;\n}'); bt('return ++i', 'return ++i'); bt('return !!x', 'return !!x'); bt('return !x', 'return !x'); bt('return [1,2]', 'return [1, 2]'); bt('return;', 'return;'); bt('return\nfunc', 'return\nfunc'); bt('catch(e)', 'catch (e)'); bt('var a=1,b={foo:2,bar:3},c=4;', 'var a = 1,\n b = {\n foo: 2,\n bar: 3\n },\n c = 4;'); #bt('x: y, // comment'); # FIXME #44 # inline comment bt('function x(/*int*/ start, /*string*/ foo)', 'function x( /*int*/ start, /*string*/ foo)'); # javadoc comment bt('/**\n* foo\n*/', '/**\n * foo\n */'); bt('{\n/**\n* foo\n*/\n}', '{\n /**\n * foo\n */\n}'); bt('var a,b,c=1,d,e,f=2;', 'var a, b, c = 1,\n d, e, f = 2;'); bt('var a,b,c=[],d,e,f=2;', 'var a, b, c = [],\n d, e, f = 2;'); bt('function() {\n var a, b, c, d, e = [],\n f;\n}'); bt('do/regexp/;\nwhile(1);', 'do /regexp/;\nwhile (1);'); # hmmm bt('var a = a,\na;\nb = {\nb\n}', 'var a = a,\n a;\nb = {\n b\n}'); bt('var a = a,\n /* c */\n b;'); bt('var a = a,\n // c\n b;'); bt('foo.("bar");'); # weird element referencing bt('if (a) a()\nelse b()\nnewline()'); bt('if (a) a()\nnewline()'); bt('a=typeof(x)', 'a = typeof(x)'); bt('var a = function() {\n return null;\n },\n b = false;'); bt('var a = function() {\n func1()\n }'); bt('var a = function() {\n func1()\n }\nvar b = function() {\n func2()\n }'); self.options.jslint_happy = True bt('x();\n\nfunction(){}', 'x();\n\nfunction () {}'); bt('function () {\n var a, b, c, d, e = [],\n f;\n}'); test_fragment("// comment 1\n(function()", "// comment 1\n(function ()"); # typical greasemonkey start bt("var a1, b1, c1, d1 = 0, c = function() {}, d = '';", "var a1, b1, c1, d1 = 0,\n c = function () {},\n d = '';"); bt('var o1=$.extend(a);function(){alert(x);}', 'var o1 = $.extend(a);\n\nfunction () {\n alert(x);\n}'); bt('a=typeof(x)', 'a = typeof (x)'); self.options.jslint_happy = False test_fragment("// comment 2\n(function()", "// comment 2\n(function()"); # typical greasemonkey start bt("var a2, b2, c2, d2 = 0, c = function() {}, d = '';", "var a2, b2, c2, d2 = 0,\n c = function() {},\n d = '';"); bt('var o2=$.extend(a);function(){alert(x);}', 'var o2 = $.extend(a);\n\nfunction() {\n alert(x);\n}'); bt('{"x":[{"a":1,"b":3},7,8,8,8,8,{"b":99},{"a":11}]}', '{\n "x": [{\n "a": 1,\n "b": 3\n },\n 7, 8, 8, 8, 8,\n {\n "b": 99\n }, {\n "a": 11\n }]\n}'); bt('{"1":{"1a":"1b"},"2"}', '{\n "1": {\n "1a": "1b"\n },\n "2"\n}'); bt('{a:{a:b},c}', '{\n a: {\n a: b\n },\n c\n}'); bt('{[y[a]];keep_indent;}', '{\n [y[a]];\n keep_indent;\n}'); bt('if (x) {y} else { if (x) {y}}', 'if (x) {\n y\n} else {\n if (x) {\n y\n }\n}'); bt('if (foo) one()\ntwo()\nthree()'); bt('if (1 + foo() && bar(baz()) / 2) one()\ntwo()\nthree()'); bt('if (1 + foo() && bar(baz()) / 2) one();\ntwo();\nthree();'); self.options.indent_size = 1; self.options.indent_char = ' '; bt('{ one_char() }', "{\n one_char()\n}"); bt('var a,b=1,c=2', 'var a, b = 1,\n c = 2'); self.options.indent_size = 4; self.options.indent_char = ' '; bt('{ one_char() }', "{\n one_char()\n}"); self.options.indent_size = 1; self.options.indent_char = "\t"; bt('{ one_char() }', "{\n\tone_char()\n}"); bt('x = a ? b : c; x;', 'x = a ? b : c;\nx;'); self.options.indent_size = 4; self.options.indent_char = ' '; self.options.preserve_newlines = False; bt('var\na=dont_preserve_newlines;', 'var a = dont_preserve_newlines;'); # make sure the blank line between function definitions stays # even when preserve_newlines = False bt('function foo() {\n return 1;\n}\n\nfunction foo() {\n return 1;\n}'); bt('function foo() {\n return 1;\n}\nfunction foo() {\n return 1;\n}', 'function foo() {\n return 1;\n}\n\nfunction foo() {\n return 1;\n}' ); bt('function foo() {\n return 1;\n}\n\n\nfunction foo() {\n return 1;\n}', 'function foo() {\n return 1;\n}\n\nfunction foo() {\n return 1;\n}' ); self.options.preserve_newlines = True; bt('var\na=do_preserve_newlines;', 'var\na = do_preserve_newlines;') bt('// a\n// b\n\n// c\n// d') bt('if (foo) // comment\n{\n bar();\n}') self.options.keep_array_indentation = True; test_fragment('var a = [\n// comment:\n{\n foo:bar\n}\n];', 'var a = [\n // comment:\n{\n foo: bar\n}\n];') bt('var x = [{}\n]', 'var x = [{}\n]'); bt('var x = [{foo:bar}\n]', 'var x = [{\n foo: bar\n}\n]'); bt("a = ['something',\n'completely',\n'different'];\nif (x);", "a = ['something',\n 'completely',\n 'different'];\nif (x);"); bt("a = ['a','b','c']", "a = ['a', 'b', 'c']"); bt("a = ['a', 'b','c']", "a = ['a', 'b', 'c']"); bt("x = [{'a':0}]", "x = [{\n 'a': 0\n}]"); bt('{a([[a1]], {b;});}', '{\n a([[a1]], {\n b;\n });\n}'); bt('a = //comment\n/regex/;'); test_fragment('/*\n * X\n */'); test_fragment('/*\r\n * X\r\n */', '/*\n * X\n */'); bt('if (a)\n{\nb;\n}\nelse\n{\nc;\n}', 'if (a) {\n b;\n} else {\n c;\n}'); bt('var a = new function();'); test_fragment('new function'); bt('var a =\nfoo', 'var a = foo'); self.options.brace_style = 'expand'; bt("throw {}") bt("throw {\n foo;\n}") bt('var a=1,b={foo:2,bar:3},c=4;', 'var a = 1,\n b = {\n foo: 2,\n bar: 3\n },\n c = 4;'); bt('if (a)\n{\nb;\n}\nelse\n{\nc;\n}', 'if (a)\n{\n b;\n}\nelse\n{\n c;\n}'); test_fragment('if (foo) {', 'if (foo)\n{'); test_fragment('foo {', 'foo\n{'); test_fragment('return {', 'return {'); # return needs the brace. maybe something else as well: feel free to report. # test_fragment('return\n{', 'return\n{'); # can't support this?, but that's an improbable and extreme case anyway. test_fragment('return;\n{', 'return;\n{'); bt('if (a)\n{\nb;\n}\nelse\n{\nc;\n}', 'if (a)\n{\n b;\n}\nelse\n{\n c;\n}'); bt('var foo = {}'); bt('if (a)\n{\nb;\n}\nelse\n{\nc;\n}', 'if (a)\n{\n b;\n}\nelse\n{\n c;\n}'); test_fragment('if (foo) {', 'if (foo)\n{'); test_fragment('foo {', 'foo\n{'); test_fragment('return {', 'return {'); # return needs the brace. maybe something else as well: feel free to report. # test_fragment('return\n{', 'return\n{'); # can't support this?, but that's an improbable and extreme case anyway. test_fragment('return;\n{', 'return;\n{'); self.options.brace_style = 'collapse'; bt('if (a)\n{\nb;\n}\nelse\n{\nc;\n}', 'if (a) {\n b;\n} else {\n c;\n}'); test_fragment('if (foo) {', 'if (foo) {'); test_fragment('foo {', 'foo {'); test_fragment('return {', 'return {'); # return needs the brace. maybe something else as well: feel free to report. # test_fragment('return\n{', 'return\n{'); # can't support this?, but that's an improbable and extreme case anyway. test_fragment('return;\n{', 'return; {'); bt('if (foo) bar();\nelse break'); bt('function x() {\n foo();\n}zzz', 'function x() {\n foo();\n}\nzzz'); bt('a: do {} while (); xxx', 'a: do {} while ();\nxxx'); self.options.brace_style = "end-expand"; bt('if(1){2}else{3}', "if (1) {\n 2\n}\nelse {\n 3\n}"); bt('try{a();}catch(b){c();}finally{d();}', "try {\n a();\n}\ncatch (b) {\n c();\n}\nfinally {\n d();\n}"); bt('if(a){b();}else if(c) foo();', "if (a) {\n b();\n}\nelse if (c) foo();"); bt("if (a) {\n// comment\n}else{\n// comment\n}", "if (a) {\n // comment\n}\nelse {\n // comment\n}"); # if/else statement with empty body bt('if (x) {y} else { if (x) {y}}', 'if (x) {\n y\n}\nelse {\n if (x) {\n y\n }\n}'); bt('if (a)\n{\nb;\n}\nelse\n{\nc;\n}', 'if (a) {\n b;\n}\nelse {\n c;\n}'); bt('if (foo) {}\nelse /regex/.test();') # bt('if (foo) /regex/.test();') # doesn't work, detects as a division. should it work? bt('a = ;'); # not the most perfect thing in the world, but you're the weirdo beaufifying php mix-ins with javascript beautifier bt('a = <%= external() %> ;'); test_fragment('roo = {\n /*\n ****\n FOO\n ****\n */\n BAR: 0\n};'); test_fragment("if (..) {\n // ....\n}\n(function"); bt('"foo""bar""baz"', '"foo"\n"bar"\n"baz"') bt("'foo''bar''baz'", "'foo'\n'bar'\n'baz'") bt("{\n get foo() {}\n}") bt("{\n var a = get\n foo();\n}") bt("{\n set foo() {}\n}") bt("{\n var a = set\n foo();\n}") bt("var x = {\n get function()\n}") bt("var x = {\n set function()\n}") bt("var x = set\n\nfunction() {}") bt('') bt('