babel/test/utils/runFixtureTests.js
Daniel Tschinder 13bebfdf45 Fail tests that have expected.json and throws-option (#285)
* Fail tests that have expected.json and throws

* Remove obsolete test files
2017-01-12 22:38:41 +01:00

104 lines
3.0 KiB
JavaScript

var test = require("ava");
var getFixtures = require("babel-helper-fixtures").multiple;
module.exports = function runFixtureTests(fixturesPath, parseFunction) {
var fixtures = getFixtures(fixturesPath);
Object.keys(fixtures).forEach(function (name) {
fixtures[name].forEach(function (testSuite) {
testSuite.tests.forEach(function (task) {
var testFn = task.disabled ? test.skip : test;
testFn(name + "/" + testSuite.title + "/" + task.title, function () {
try {
return runTest(task, parseFunction);
} catch (err) {
err.message = name + "/" + task.actual.filename + ": " + err.message;
throw err;
}
});
});
});
});
};
function save(test, ast) {
delete ast.tokens;
if (!ast.comments.length) delete ast.comments;
require("fs").writeFileSync(test.expect.loc, JSON.stringify(ast, null, " "));
}
function runTest(test, parseFunction) {
var opts = test.options;
opts.locations = true;
opts.ranges = true;
if (opts.throws && test.expect.code) {
throw new Error("File expected.json exists although options specify throws. Remove expected.json.");
}
try {
var ast = parseFunction(test.actual.code, opts);
} catch (err) {
if (opts.throws) {
if (err.message === opts.throws) {
return;
} else {
err.message = "Expected error message: " + opts.throws + ". Got error message: " + err.message;
throw err;
}
}
throw err;
}
if (!test.expect.code && !opts.throws && !process.env.CI) {
test.expect.loc += "on";
return save(test, ast);
}
if (opts.throws) {
throw new Error("Expected error message: " + opts.throws + ". But parsing succeeded.");
} else {
var mis = misMatch(JSON.parse(test.expect.code), ast);
if (mis) {
//save(test, ast);
throw new Error(mis);
}
}
}
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 + ")";
} else {
return str + " (" + pt + ")";
}
}
function misMatch(exp, act) {
if (!exp || !act || (typeof exp != "object") || (typeof act != "object")) {
if (exp !== act && typeof exp != "function")
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);
}
}
}