62 lines
2.2 KiB
JavaScript
62 lines
2.2 KiB
JavaScript
(function(exports) {
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var tests = [];
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var acorn = typeof require == "undefined" ? window.acorn : require("../acorn.js");
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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.runTests = function(callback) {
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var opts = {linePositions: true};
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for (var i = 0; i < tests.length; ++i) {
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var test = tests[i];
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try {
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var ast = acorn.parse(test.code, test.options || opts);
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if (test.error) callback("fail", test.code,
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"Expected error message: " + test.error + "\nBut parsing succeeded.");
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else {
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var mis = misMatch(test.ast, ast);
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if (!mis) callback("ok", test.code);
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else callback("fail", test.code, mis);
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}
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} catch(e) {
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if (test.error && e instanceof SyntaxError) {
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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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}
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}
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};
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function ppJSON(v) { return 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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function misMatch(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.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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})(typeof exports == "undefined" ? window : exports);
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