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var tests = [];
exports.test = function(code, ast, options) {
tests.push({code: code, ast: ast, options: options});
};
exports.testFail = function(code, message, options) {
tests.push({code: code, error: message, options: options});
};
exports.testAssert = function(code, assert, options) {
tests.push({code: code, assert: assert, options: options});
};
exports.runTests = function(config, callback) {
var parse = config.parse;
for (var i = 0; i < tests.length; ++i) {
var test = tests[i];
if (config.filter && !config.filter(test)) continue;
try {
var testOpts = test.options || {locations: true};
var expected = {};
if (expected.onComment = testOpts.onComment) {
testOpts.onComment = []
}
if (expected.onToken = testOpts.onToken) {
testOpts.onToken = [];
}
testOpts.plugins = testOpts.plugins || { jsx: true };
var ast = parse(test.code, testOpts);
if (test.error) {
if (config.loose) {
callback("ok", test.code);
} else {
callback("fail", test.code, "Expected error message: " + test.error + "\nBut parsing succeeded.");
}
}
else if (test.assert) {
var error = test.assert(ast);
if (error) callback("fail", test.code,
"\n Assertion failed:\n " + error);
else callback("ok", test.code);
} else {
var mis = misMatch(test.ast, ast);
for (var name in expected) {
if (mis) break;
if (expected[name]) {
mis = misMatch(expected[name], testOpts[name]);
testOpts[name] = expected[name];
}
}
if (mis) callback("fail", test.code, mis);
else callback("ok", test.code);
}
} catch(e) {
if (!(e instanceof SyntaxError)) {
throw e;
}
if (test.error) {
if (e.message == test.error) callback("ok", test.code);
else callback("fail", test.code,
"Expected error message: " + test.error + "\nGot error message: " + e.message);
} else {
callback("error", test.code, e.stack || e.toString());
}
}
}
};
function ppJSON(v) { return v instanceof RegExp ? v.toString() : JSON.stringify(v, null, 2); }
function addPath(str, pt) {
if (str.charAt(str.length-1) == ")")
return str.slice(0, str.length-1) + "/" + pt + ")";
return str + " (" + pt + ")";
}
var misMatch = exports.misMatch = function(exp, act) {
if (!exp || !act || (typeof exp != "object") || (typeof act != "object")) {
if (exp !== act) return ppJSON(exp) + " !== " + ppJSON(act);
} else if (exp instanceof RegExp || act instanceof RegExp) {
var left = ppJSON(exp), right = ppJSON(act);
if (left !== right) return left + " !== " + right;
} else if (exp.splice) {
if (!act.slice) return ppJSON(exp) + " != " + ppJSON(act);
if (act.length != exp.length) return "array length mismatch " + exp.length + " != " + act.length;
for (var i = 0; i < act.length; ++i) {
var mis = misMatch(exp[i], act[i]);
if (mis) return addPath(mis, i);
}
} else {
for (var prop in exp) {
var mis = misMatch(exp[prop], act[prop]);
if (mis) return addPath(mis, prop);
}
}
};
function mangle(ast) {
if (typeof ast != "object" || !ast) return;
if (ast.slice) {
for (var i = 0; i < ast.length; ++i) mangle(ast[i]);
} else {
var loc = ast.start && ast.end && {start: ast.start, end: ast.end};
if (loc) { delete ast.start; delete ast.end; }
for (var name in ast) if (ast.hasOwnProperty(name)) mangle(ast[name]);
if (loc) ast.loc = loc;
}
}
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