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fuzz regexp literals, more constant numbers, typeof expression (#1755)

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This commit is contained in:
kzc
2017-04-01 14:08:46 -04:00
committed by Alex Lam S.L
parent ee3fe0f4cd
commit 9a311705f5
1 changed files with 29 additions and 5 deletions
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34
test/ufuzz.js
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@@ -136,14 +136,24 @@ for (var i = 2; i < process.argv.length; ++i) {
var VALUES = [ var VALUES = [
'true', 'true',
'false', 'false',
'22', ' /[a2][^e]+$/ ',
'(-1)',
'(-2)',
'(-3)',
'(-4)',
'(-5)',
'0', '0',
'1',
'2',
'3',
'4',
'5',
'22',
'-0', // 0/-0 !== 0 '-0', // 0/-0 !== 0
'23..toString()', '23..toString()',
'24 .toString()', '24 .toString()',
'25. ', '25. ',
'0x26.toString()', '0x26.toString()',
'(-1)',
'NaN', 'NaN',
'undefined', 'undefined',
'Infinity', 'Infinity',
@@ -153,7 +163,12 @@ var VALUES = [
'([,0].length === 2)', // an array with elisions... this is always true '([,0].length === 2)', // an array with elisions... this is always true
'({})', // wrapped the object causes too many syntax errors in statements '({})', // wrapped the object causes too many syntax errors in statements
'"foo"', '"foo"',
'"bar"' ]; '"bar"',
'"undefined"',
'"object"',
'"number"',
'"function"',
];
var BINARY_OPS_NO_COMMA = [ var BINARY_OPS_NO_COMMA = [
' + ', // spaces needed to disambiguate with ++ cases (could otherwise cause syntax errors) ' + ', // spaces needed to disambiguate with ++ cases (could otherwise cause syntax errors)
@@ -257,6 +272,7 @@ var VAR_NAMES = [
var INITIAL_NAMES_LEN = VAR_NAMES.length; var INITIAL_NAMES_LEN = VAR_NAMES.length;
var TYPEOF_OUTCOMES = [ var TYPEOF_OUTCOMES = [
'function',
'undefined', 'undefined',
'string', 'string',
'number', 'number',
@@ -466,7 +482,7 @@ function createExpression(recurmax, noComma, stmtDepth, canThrow) {
return _createExpression(recurmax, noComma, stmtDepth, canThrow); return _createExpression(recurmax, noComma, stmtDepth, canThrow);
} }
function _createExpression(recurmax, noComma, stmtDepth, canThrow) { function _createExpression(recurmax, noComma, stmtDepth, canThrow) {
switch (rng(13)) { switch (rng(15)) {
case 0: case 0:
return createUnaryOp() + (rng(2) === 1 ? 'a' : 'b'); return createUnaryOp() + (rng(2) === 1 ? 'a' : 'b');
case 1: case 1:
@@ -540,6 +556,10 @@ function _createExpression(recurmax, noComma, stmtDepth, canThrow) {
} }
case 12: case 12:
return createNestedBinaryExpr(recurmax, noComma); return createNestedBinaryExpr(recurmax, noComma);
case 13:
return " ((" + createExpression(recurmax, COMMA_OK, stmtDepth, canThrow) + ") || a || 3).toString() ";
case 14:
return " /[abc4]/.test(((" + createExpression(recurmax, COMMA_OK, stmtDepth, canThrow) + ") || b || 5).toString()) ";
} }
} }
@@ -562,7 +582,7 @@ function _createSimpleBinaryExpr(recurmax, noComma) {
} }
function createTypeofExpr() { function createTypeofExpr() {
switch (rng(5)) { switch (rng(8)) {
case 0: case 0:
return 'typeof ' + createVarName(MANDATORY, DONT_STORE) + ' === "' + TYPEOF_OUTCOMES[rng(TYPEOF_OUTCOMES.length)] + '"'; return 'typeof ' + createVarName(MANDATORY, DONT_STORE) + ' === "' + TYPEOF_OUTCOMES[rng(TYPEOF_OUTCOMES.length)] + '"';
case 1: case 1:
@@ -573,6 +593,10 @@ function createTypeofExpr() {
return 'typeof ' + createVarName(MANDATORY, DONT_STORE) + ' != "' + TYPEOF_OUTCOMES[rng(TYPEOF_OUTCOMES.length)] + '"'; return 'typeof ' + createVarName(MANDATORY, DONT_STORE) + ' != "' + TYPEOF_OUTCOMES[rng(TYPEOF_OUTCOMES.length)] + '"';
case 4: case 4:
return 'typeof ' + createVarName(MANDATORY, DONT_STORE); return 'typeof ' + createVarName(MANDATORY, DONT_STORE);
case 5:
case 6:
case 7:
return '(typeof ' + createExpression(3, COMMA_OK, 2, true) + ')';
} }
} }