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