babel/test/core/api.js
2015-06-25 23:32:43 +01:00

414 lines
12 KiB
JavaScript

require("../../lib/babel/api/node");
var buildExternalHelpers = require("../../lib/babel/tools/build-external-helpers");
var PluginManager = require("../../lib/babel/transformation/file/plugin-manager");
var Transformer = require("../../lib/babel/transformation/transformer");
var transform = require("../../lib/babel/transformation");
var assert = require("assert");
var File = require("../../lib/babel/transformation/file");
suite("api", function () {
test("code option false", function () {
var result = transform("foo('bar');", { code: false });
assert.ok(!result.code);
});
test("ast option false", function () {
var result = transform("foo('bar');", { ast: false });
assert.ok(!result.ast);
});
test("auxiliaryCommentBefore option", function () {
assert.ok(transform("class Foo {}", {
auxiliaryCommentBefore: "foobar"
}).code.indexOf("foobar") >= 0);
assert.ok(transform("for (let i in bar) { foo(function () { i; }); break; continue; }", {
auxiliaryCommentBefore: "foobar"
}).code.indexOf("foobar") >= 0);
});
test("auxiliaryCommentAfter option", function () {
assert.ok(transform("class Foo {}", {
auxiliaryCommentAfter: "foobar"
}).code.indexOf("foobar") >= 0);
assert.ok(transform("for (let i in bar) { foo(function () { i; }); break; continue; }", {
auxiliaryCommentAfter: "foobar"
}).code.indexOf("foobar") >= 0);
});
test("modules metadata", function () {
assert.deepEqual(transform('import { externalName as localName } from "external";').metadata.modules.imports[0], {
source: "external",
imported: ["externalName"],
specifiers: [{
kind: "named",
imported: "externalName",
local: "localName"
}]
});
assert.deepEqual(transform('import * as localName2 from "external";').metadata.modules.imports[0], {
source: "external",
imported: ["*"],
specifiers: [{
kind: "namespace",
local: "localName2"
}]
});
assert.deepEqual(transform('import localName3 from "external";').metadata.modules.imports[0], {
source: "external",
imported: ["default"],
specifiers: [{
kind: "named",
imported: "default",
local: "localName3"
}]
});
assert.deepEqual(transform('import localName from "./array";', {
resolveModuleSource: function() {
return 'override-source';
}
}).metadata.modules.imports, [
{
source: "override-source",
imported: ["default"],
specifiers: [
{
"kind": "named",
"imported": "default",
"local": "localName"
}
]
}
]);
assert.deepEqual(transform('export * as externalName1 from "external";', {
stage: 0
}).metadata.modules.exports, {
exported: ['externalName1'],
specifiers: [{
kind: "external-namespace",
exported: "externalName1",
source: "external",
}]
});
assert.deepEqual(transform('export externalName2 from "external";', {
stage: 0
}).metadata.modules.exports, {
exported: ["externalName2"],
specifiers: [{
kind: "external",
local: "externalName2",
exported: "externalName2",
source: "external"
}]
});
assert.deepEqual(transform('export function namedFunction() {}').metadata.modules.exports, {
exported: ["namedFunction"],
specifiers: [{
kind: "local",
local: "namedFunction",
exported: "namedFunction"
}]
});
assert.deepEqual(transform('export var foo = "bar";').metadata.modules.exports, {
"exported": ["foo"],
specifiers: [{
kind: "local",
local: "foo",
exported: "foo"
}]
});
assert.deepEqual(transform("export { localName as externalName3 };").metadata.modules.exports, {
exported: ["externalName3"],
specifiers: [{
kind: "local",
local: "localName",
exported: "externalName3"
}]
});
assert.deepEqual(transform('export { externalName4 } from "external";').metadata.modules.exports, {
exported: ["externalName4"],
specifiers: [{
kind: "external",
local: "externalName4",
exported: "externalName4",
source: "external"
}]
});
assert.deepEqual(transform('export * from "external";').metadata.modules.exports, {
exported: [],
specifiers: [{
kind: "external-all",
source: "external"
}]
});
assert.deepEqual(transform("export default function defaultFunction() {}").metadata.modules.exports, {
exported: ["defaultFunction"],
specifiers: [{
kind: "local",
local: "defaultFunction",
exported: "default"
}]
});
});
test("ignore option", function () {
assert.ok(transform("", {
ignore: "node_modules",
filename: "/foo/node_modules/bar"
}).ignored);
assert.ok(transform("", {
ignore: "foo/node_modules",
filename: "/foo/node_modules/bar"
}).ignored);
assert.ok(transform("", {
ignore: "foo/node_modules/*.bar",
filename: "/foo/node_modules/foo.bar"
}).ignored);
});
test("only option", function () {
assert.ok(!transform("", {
only: "node_modules",
filename: "/foo/node_modules/bar"
}).ignored);
assert.ok(!transform("", {
only: "foo/node_modules",
filename: "/foo/node_modules/bar"
}).ignored);
assert.ok(!transform("", {
only: "foo/node_modules/*.bar",
filename: "/foo/node_modules/foo.bar"
}).ignored);
assert.ok(transform("", {
only: "node_modules",
filename: "/foo/node_module/bar"
}).ignored);
assert.ok(transform("", {
only: "foo/node_modules",
filename: "/bar/node_modules/foo"
}).ignored);
assert.ok(transform("", {
only: "foo/node_modules/*.bar",
filename: "/foo/node_modules/bar.foo"
}).ignored);
});
suite("getModuleId option", function () {
// As of this commit, `getModuleId` is the only option that isn't JSON
// compatible which is why it's not inside /test/core/fixtures/transformation
function getModuleNameTest(moduleFormat, expected) {
var result = transform("foo('bar');", {
filename: "/foo/bar/index",
modules: moduleFormat,
moduleIds: true,
getModuleId: function (name) {
return name.replace(/\/index$/, "");
}
});
assert.equal(result.code, expected);
}
test("amd", function () {
var expected = [
"define('/foo/bar', ['exports'], function (exports) {",
" 'use strict';",
"",
" foo('bar');",
"});"
].join("\n");
getModuleNameTest("amd", expected);
});
test("umd", function () {
var expected = [
"(function (global, factory) {",
" if (typeof define === 'function' && define.amd) {",
" define('/foo/bar', ['exports'], factory);",
" } else if (typeof exports !== 'undefined') {",
" factory(exports);",
" } else {",
" var mod = {",
" exports: {}",
" };",
" factory(mod.exports);",
" global.fooBar = mod.exports;",
" }",
"})(this, function (exports) {",
" 'use strict';",
"",
" foo('bar');",
"});",
].join("\n");
getModuleNameTest("umd", expected);
});
test("system", function () {
var expected = [
"System.register('/foo/bar', [], function (_export) {",
" 'use strict';",
"",
" return {",
" setters: [],",
" execute: function () {",
" foo('bar');",
" }",
" };",
"});",
].join("\n");
getModuleNameTest("system", expected);
});
});
suite("env option", function () {
var oldBabelEnv = process.env.BABEL_ENV;
var oldNodeEnv = process.env.NODE_ENV;
before(function () {
delete process.env.BABEL_ENV;
delete process.env.NODE_ENV;
});
after(function () {
process.env.BABEL_ENV = oldBabelEnv;
process.env.NODE_ENV = oldNodeEnv;
});
test("default", function () {
assert.equal(transform("foo;", {
env: {
development: { blacklist: "strict" }
}
}).code, "foo;");
});
test("BABEL_ENV", function () {
process.env.BABEL_ENV = "foo";
assert.equal(transform("foo;", {
env: {
foo: { blacklist: "strict" }
}
}).code, "foo;");
});
test("NODE_ENV", function () {
process.env.NODE_ENV = "foo";
assert.equal(transform("foo;", {
env: {
foo: { blacklist: "strict" }
}
}).code, "foo;");
});
});
test("addHelper unknown", function () {
var file = new File({}, transform.pipeline);
assert.throws(function () {
file.addHelper("foob");
}, /Unknown helper foob/);
});
test("resolveModuleSource option", function () {
var actual = 'import foo from "foo-import-default";\nimport "foo-import-bare";\nexport { foo } from "foo-export-named";';
var expected = 'import foo from "resolved/foo-import-default";\nimport "resolved/foo-import-bare";\nexport { foo } from "resolved/foo-export-named";';
actual = transform(actual, {
blacklist: ["es6.modules", "strict"],
resolveModuleSource: function (originalSource) {
return "resolved/" + originalSource;
}
}).code.trim();
assert.equal(actual, expected);
});
test("extra options", function () {
var file1 = new File({ extra: { foo: "bar" } }, transform.pipeline);
assert.equal(file1.opts.extra.foo, "bar");
var file2 = new File({}, transform.pipeline);
var file3 = new File({}, transform.pipeline);
assert.ok(file2.opts.extra !== file3.opts.extra);
});
suite("buildExternalHelpers", function () {
test("all", function () {
var script = buildExternalHelpers();
assert.ok(script.indexOf("classCallCheck") >= -1);
assert.ok(script.indexOf("inherits") >= 0);
});
test("whitelist", function () {
var script = buildExternalHelpers(["inherits"]);
assert.ok(script.indexOf("classCallCheck") === -1);
assert.ok(script.indexOf("inherits") >= 0);
});
test("empty whitelist", function () {
var script = buildExternalHelpers([]);
assert.ok(script.indexOf("classCallCheck") === -1);
assert.ok(script.indexOf("inherits") === -1);
});
});
suite("plugins", function () {
test("unknown plugin", function () {
assert.throws(function () {
new PluginManager().subnormaliseString("foo bar");
}, /Unknown plugin/);
});
test("key collision", function () {
assert.throws(function () {
new PluginManager({
transformers: { "es6.arrowFunctions": true }
}).validate("foobar", { key: "es6.arrowFunctions" });
}, /collides with another/);
});
test("not transformer", function () {
assert.throws(function () {
new PluginManager().validate("foobar", {});
}, /didn't export a Plugin instance/);
assert.throws(function () {
new PluginManager().validate("foobar", "");
}, /didn't export a Plugin instance/);
assert.throws(function () {
new PluginManager().validate("foobar", []);
}, /didn't export a Plugin instance/);
});
test("object request");
test("string request");
test("transformer request");
});
});