From 122689eac737b9d20a39314990647780e726765f Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Marko=20=C5=BDarkovi=C4=87?= Date: Wed, 24 Jan 2018 17:34:05 +0100 Subject: [PATCH 1/7] Add support for object spread/rest operator. Before this commit, using rewire on a module that had object spread/rest operator in it would throw an exception. Now it doesn't. --- lib/moduleEnv.js | 5 ++++- package-lock.json | 14 ++++++++++++++ package.json | 3 ++- testLib/objectRestOperator.js | 2 ++ testLib/objectSpreadOperator.js | 1 + testLib/sharedTestCases.js | 12 ++++++++++++ 6 files changed, 35 insertions(+), 2 deletions(-) create mode 100644 testLib/objectRestOperator.js create mode 100644 testLib/objectSpreadOperator.js diff --git a/lib/moduleEnv.js b/lib/moduleEnv.js index a9f410a..cbd5e25 100644 --- a/lib/moduleEnv.js +++ b/lib/moduleEnv.js @@ -76,7 +76,10 @@ function jsExtension(module, filename) { module._compile = function (content, filename) { content = babelCore.transform(content, { - plugins: [require.resolve("babel-plugin-transform-es2015-block-scoping")], + plugins: [ + require.resolve("babel-plugin-transform-es2015-block-scoping"), + require.resolve("babel-plugin-transform-object-rest-spread") + ], retainLines: true, filename: filename, babelrc: false diff --git a/package-lock.json b/package-lock.json index 7cbcd08..19647ab 100644 --- a/package-lock.json +++ b/package-lock.json @@ -105,6 +105,11 @@ "babel-runtime": "6.26.0" } }, + "babel-plugin-syntax-object-rest-spread": { + "version": "6.13.0", + "resolved": "https://registry.npmjs.org/babel-plugin-syntax-object-rest-spread/-/babel-plugin-syntax-object-rest-spread-6.13.0.tgz", + "integrity": "sha1-/WU28rzhODb/o6VFjEkDpZe7O/U=" + }, "babel-plugin-transform-es2015-block-scoping": { "version": "6.26.0", "resolved": "https://registry.npmjs.org/babel-plugin-transform-es2015-block-scoping/-/babel-plugin-transform-es2015-block-scoping-6.26.0.tgz", @@ -117,6 +122,15 @@ "lodash": "4.17.4" } }, + "babel-plugin-transform-object-rest-spread": { + "version": "6.26.0", + "resolved": "https://registry.npmjs.org/babel-plugin-transform-object-rest-spread/-/babel-plugin-transform-object-rest-spread-6.26.0.tgz", + "integrity": "sha1-DzZpLVD+9rfi1LOsFHgTepY7ewY=", + "requires": { + "babel-plugin-syntax-object-rest-spread": "6.13.0", + "babel-runtime": "6.26.0" + } + }, "babel-register": { "version": "6.26.0", "resolved": "https://registry.npmjs.org/babel-register/-/babel-register-6.26.0.tgz", diff --git a/package.json b/package.json index 1079122..579b88f 100644 --- a/package.json +++ b/package.json @@ -41,6 +41,7 @@ }, "dependencies": { "babel-core": "^6.26.0", - "babel-plugin-transform-es2015-block-scoping": "^6.26.0" + "babel-plugin-transform-es2015-block-scoping": "^6.26.0", + "babel-plugin-transform-object-rest-spread": "^6.26.0" } } diff --git a/testLib/objectRestOperator.js b/testLib/objectRestOperator.js new file mode 100644 index 0000000..4a2753d --- /dev/null +++ b/testLib/objectRestOperator.js @@ -0,0 +1,2 @@ +let { ...a } = {}; +module.exports = a; diff --git a/testLib/objectSpreadOperator.js b/testLib/objectSpreadOperator.js new file mode 100644 index 0000000..83b7414 --- /dev/null +++ b/testLib/objectSpreadOperator.js @@ -0,0 +1 @@ +module.exports = { ...{} }; diff --git a/testLib/sharedTestCases.js b/testLib/sharedTestCases.js index b6caf6a..991453b 100644 --- a/testLib/sharedTestCases.js +++ b/testLib/sharedTestCases.js @@ -238,6 +238,18 @@ module.exports = function () { }).to.not.throwException(); }); + it("should not be a problem to have a module that uses object spread operator", function() { + expect(function() { + var rewired = rewire("./objectSpreadOperator.js"); + }).to.not.throwException(); + }); + + it("should not be a problem to have a module that uses object rest operator", function() { + expect(function() { + var rewired = rewire("./objectRestOperator.js"); + }).to.not.throwException(); + }); + it("should not influence the original require if nothing has been required within the rewired module", function () { rewire("./emptyModule.js"); // nothing happens here because emptyModule doesn't require anything expect(require("./moduleA.js").__set__).to.be(undefined); // if restoring the original node require didn't worked, the module would have a setter From 5adaa1d26dac48b500d0a592b2be0ee601f6ee79 Mon Sep 17 00:00:00 2001 From: Johannes Ewald Date: Mon, 9 Apr 2018 17:46:32 +0200 Subject: [PATCH 2/7] Remove unused path import --- lib/rewire.js | 1 - 1 file changed, 1 deletion(-) diff --git a/lib/rewire.js b/lib/rewire.js index e678f37..3ac2042 100644 --- a/lib/rewire.js +++ b/lib/rewire.js @@ -1,6 +1,5 @@ var Module = require("module"), fs = require("fs"), - path = require("path"), getImportGlobalsSrc = require("./getImportGlobalsSrc.js"), getDefinePropertySrc = require("./getDefinePropertySrc.js"), detectStrictMode = require("./detectStrictMode.js"), From cbb2802ea5e30b47003298f2756c62ce20b41bb0 Mon Sep 17 00:00:00 2001 From: Johannes Ewald Date: Mon, 9 Apr 2018 17:53:21 +0200 Subject: [PATCH 3/7] Refactor babel plugin initialization in moduleEnv.js --- lib/moduleEnv.js | 15 ++++++++------- package-lock.json | 33 +++++++++------------------------ 2 files changed, 17 insertions(+), 31 deletions(-) diff --git a/lib/moduleEnv.js b/lib/moduleEnv.js index cbd5e25..6754273 100644 --- a/lib/moduleEnv.js +++ b/lib/moduleEnv.js @@ -3,14 +3,15 @@ var Module = require("module"), fs = require("fs"), babelCore = require("babel-core"), - // Requiring the babel plugin here because otherwise it will be lazy-loaded by Babel during rewire() - transformBlockScoping = require("babel-plugin-transform-es2015-block-scoping"), coffee; var moduleWrapper0 = Module.wrapper[0], moduleWrapper1 = Module.wrapper[1], originalExtensions = {}, - matchCoffeeExt = /\.coffee$/, + babelPlugins = [ + "babel-plugin-transform-es2015-block-scoping", + "babel-plugin-transform-object-rest-spread" + ], nodeRequire, currentModule; @@ -76,10 +77,7 @@ function jsExtension(module, filename) { module._compile = function (content, filename) { content = babelCore.transform(content, { - plugins: [ - require.resolve("babel-plugin-transform-es2015-block-scoping"), - require.resolve("babel-plugin-transform-object-rest-spread") - ], + plugins: babelPlugins, retainLines: true, filename: filename, babelrc: false @@ -115,6 +113,9 @@ function stripBOM(content) { return content; } +// Prepopulate require.cache with babel plugins because otherwise it will be lazy-loaded by Babel during rewire() +babelPlugins.forEach(require); + try { coffee = require("coffee-script"); } catch (err) { diff --git a/package-lock.json b/package-lock.json index 19647ab..ef0eab7 100644 --- a/package-lock.json +++ b/package-lock.json @@ -30,7 +30,7 @@ "integrity": "sha1-rzL3izGm/O8RnIew/Y2XU/A6C7g=", "requires": { "babel-code-frame": "6.26.0", - "babel-generator": "6.26.0", + "babel-generator": "6.26.1", "babel-helpers": "6.24.1", "babel-messages": "6.23.0", "babel-register": "6.26.0", @@ -39,7 +39,7 @@ "babel-traverse": "6.26.0", "babel-types": "6.26.0", "babylon": "6.18.0", - "convert-source-map": "1.5.0", + "convert-source-map": "1.5.1", "debug": "2.6.9", "json5": "0.5.1", "lodash": "4.17.4", @@ -57,26 +57,13 @@ "requires": { "ms": "2.0.0" } - }, - "minimatch": { - "version": "3.0.4", - "resolved": "https://registry.npmjs.org/minimatch/-/minimatch-3.0.4.tgz", - "integrity": "sha512-yJHVQEhyqPLUTgt9B83PXu6W3rx4MvvHvSUvToogpwoGDOUQ+yDrR0HRot+yOCdCO7u4hX3pWft6kWBBcqh0UA==", - "requires": { - "brace-expansion": "1.1.8" - } - }, - "ms": { - "version": "2.0.0", - "resolved": "https://registry.npmjs.org/ms/-/ms-2.0.0.tgz", - "integrity": "sha1-VgiurfwAvmwpAd9fmGF4jeDVl8g=" } } }, "babel-generator": { - "version": "6.26.0", - "resolved": "https://registry.npmjs.org/babel-generator/-/babel-generator-6.26.0.tgz", - "integrity": "sha1-rBriAHC3n248odMmlhMFN3TyDcU=", + "version": "6.26.1", + "resolved": "https://registry.npmjs.org/babel-generator/-/babel-generator-6.26.1.tgz", + "integrity": "sha512-HyfwY6ApZj7BYTcJURpM5tznulaBvyio7/0d4zFOeMPUmfxkCjHocCuoLa2SAGzBI8AREcH3eP3758F672DppA==", "requires": { "babel-messages": "6.23.0", "babel-runtime": "6.26.0", @@ -270,9 +257,9 @@ "integrity": "sha1-2Klr13/Wjfd5OnMDajug1UBdR3s=" }, "convert-source-map": { - "version": "1.5.0", - "resolved": "https://registry.npmjs.org/convert-source-map/-/convert-source-map-1.5.0.tgz", - "integrity": "sha1-ms1whRxtXf3ZPZKC5e35SgP/RrU=" + "version": "1.5.1", + "resolved": "https://registry.npmjs.org/convert-source-map/-/convert-source-map-1.5.1.tgz", + "integrity": "sha1-uCeAl7m8IpNl3lxiz1/K7YtVmeU=" }, "core-js": { "version": "2.5.1", @@ -442,7 +429,6 @@ "version": "3.0.4", "resolved": "https://registry.npmjs.org/minimatch/-/minimatch-3.0.4.tgz", "integrity": "sha512-yJHVQEhyqPLUTgt9B83PXu6W3rx4MvvHvSUvToogpwoGDOUQ+yDrR0HRot+yOCdCO7u4hX3pWft6kWBBcqh0UA==", - "dev": true, "requires": { "brace-expansion": "1.1.8" } @@ -489,8 +475,7 @@ "ms": { "version": "2.0.0", "resolved": "https://registry.npmjs.org/ms/-/ms-2.0.0.tgz", - "integrity": "sha1-VgiurfwAvmwpAd9fmGF4jeDVl8g=", - "dev": true + "integrity": "sha1-VgiurfwAvmwpAd9fmGF4jeDVl8g=" }, "number-is-nan": { "version": "1.0.1", From 9b77ed9a293c538ec3eb5160bcb933e012ce517f Mon Sep 17 00:00:00 2001 From: Johannes Ewald Date: Mon, 9 Apr 2018 20:49:49 +0200 Subject: [PATCH 4/7] Replace babel with a regex-based transformation This regex replacement is not 100% safe because transforming JavaScript requires an actual parser. However, parsing (e.g. via babel) comes with its own problems because now the parser needs to be aware of syntax extensions which might not be supported by the parser, but the underlying JavaScript engine. In fact, rewire used to have babel in place but required an extra transform for the object spread operator (check out commit d9a81c0cdacf6995b24d205b4a2068adbd8b34ff or see https://github.com/jhnns/rewire/pull/128). It was also notable slower (see https://github.com/jhnns/rewire/issues/132). There is another issue: replacing const with let is not safe because of their different behavior. That's why we also have ESLint in place which tries to identify this error case. There is one edge case though: when a new syntax is used *and* a const re-assignment happens, rewire would compile happily in this situation but the actual code wouldn't work. However, since most projects have a seperate linting step which catches these const re-assignment errors anyway, it's probably still a reasonable trade-off. Fixes https://github.com/jhnns/rewire/issues/132 --- lib/moduleEnv.js | 68 +- package-lock.json | 1166 +++++++++++++++++++++++++++-------- package.json | 4 +- testLib/constModule.js | 49 +- testLib/sharedTestCases.js | 51 +- testLib/throwError.js | 2 +- testLib/wrongConstModule.js | 4 + 7 files changed, 1018 insertions(+), 326 deletions(-) create mode 100644 testLib/wrongConstModule.js diff --git a/lib/moduleEnv.js b/lib/moduleEnv.js index 6754273..cbb76d9 100644 --- a/lib/moduleEnv.js +++ b/lib/moduleEnv.js @@ -1,17 +1,48 @@ "use strict"; +// TODO: Use https://www.npmjs.com/package/pirates here? + var Module = require("module"), fs = require("fs"), - babelCore = require("babel-core"), + eslint = require("eslint"), coffee; var moduleWrapper0 = Module.wrapper[0], moduleWrapper1 = Module.wrapper[1], originalExtensions = {}, - babelPlugins = [ - "babel-plugin-transform-es2015-block-scoping", - "babel-plugin-transform-object-rest-spread" - ], + linter = new eslint.Linter(), + eslintOptions = { + env: { + es6: true, + }, + parserOptions: { + ecmaVersion: 6, + ecmaFeatures: { + globalReturn: true, + jsx: true, + experimentalObjectRestSpread: true + }, + }, + rules: { + "no-const-assign": 2 + } + }, + // The following regular expression is used to replace const declarations with let. + // This regex replacement is not 100% safe because transforming JavaScript requires an actual parser. + // However, parsing (e.g. via babel) comes with its own problems because now the parser needs to + // be aware of syntax extensions which might not be supported by the parser, but the underlying + // JavaScript engine. In fact, rewire used to have babel in place here but required an extra + // transform for the object spread operator (check out commit d9a81c0cdacf6995b24d205b4a2068adbd8b34ff + // or see https://github.com/jhnns/rewire/pull/128). It was also notable slower + // (see https://github.com/jhnns/rewire/issues/132). + // There is another issue: replacing const with let is not safe because of their different behavior. + // That's why we also have ESLint in place which tries to identify this error case. + // There is one edge case though: when a new syntax is used *and* a const re-assignment happens, + // rewire would compile happily in this situation but the actual code wouldn't work. + // However, since most projects have a seperate linting step which catches these const re-assignment + // errors anyway, it's probably still a reasonable trade-off. + // Test the regular expresssion at https://regex101.com/r/dvnZPv/2 and also check out testLib/constModule.js. + matchConst = /(^|\s|\}|;)const(\/\*|\s)/gm, nodeRequire, currentModule; @@ -72,17 +103,27 @@ function restoreExtensions() { } } +function isNoConstAssignMessage(message) { + return message.ruleId === "no-const-assign"; +} + function jsExtension(module, filename) { var _compile = module._compile; module._compile = function (content, filename) { - content = babelCore.transform(content, { - plugins: babelPlugins, - retainLines: true, - filename: filename, - babelrc: false - }).code; - _compile.call(module, content, filename); + const noConstAssignMessage = linter.verify(content, eslintOptions).find(isNoConstAssignMessage); + + if (noConstAssignMessage !== undefined) { + const { line, column } = noConstAssignMessage; + + throw new TypeError(`Assignment to constant variable at ${ filename }:${ line }:${ column }`); + } + + _compile.call( + module, + content.replace(matchConst, "$1let$2"), // replace const with let + filename + ); }; restoreExtensions(); @@ -113,9 +154,6 @@ function stripBOM(content) { return content; } -// Prepopulate require.cache with babel plugins because otherwise it will be lazy-loaded by Babel during rewire() -babelPlugins.forEach(require); - try { coffee = require("coffee-script"); } catch (err) { diff --git 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"sha1-J1hIEIkUVqQXHI0CJkQa3pDLyus=" }, "wrappy": { "version": "1.0.2", "resolved": "https://registry.npmjs.org/wrappy/-/wrappy-1.0.2.tgz", - "integrity": "sha1-tSQ9jz7BqjXxNkYFvA0QNuMKtp8=", - "dev": true + "integrity": "sha1-tSQ9jz7BqjXxNkYFvA0QNuMKtp8=" + }, + "write": { + "version": "0.2.1", + "resolved": "https://registry.npmjs.org/write/-/write-0.2.1.tgz", + "integrity": "sha1-X8A4KOJkzqP+kUVUdvejxWbLB1c=", + "requires": { + "mkdirp": "0.5.1" + } + }, + "yallist": { + "version": "2.1.2", + "resolved": "https://registry.npmjs.org/yallist/-/yallist-2.1.2.tgz", + "integrity": "sha1-HBH5IY8HYImkfdUS+TxmmaaoHVI=" } } } diff --git a/package.json b/package.json index 579b88f..436dbf0 100644 --- a/package.json +++ b/package.json @@ -40,8 +40,6 @@ "coverage": "istanbul cover ./node_modules/mocha/bin/_mocha" }, "dependencies": { - "babel-core": "^6.26.0", - "babel-plugin-transform-es2015-block-scoping": "^6.26.0", - "babel-plugin-transform-object-rest-spread": "^6.26.0" + "eslint": "^4.19.1" } } diff --git a/testLib/constModule.js b/testLib/constModule.js index 77396d9..efff495 100644 --- a/testLib/constModule.js +++ b/testLib/constModule.js @@ -1,13 +1,42 @@ -const someOtherModule = require("./someOtherModule"); -const language = "nl"; +const j = "j"; // At the beginning of the file +// This module contains some weird combinations where valid const declarations could appear. +// Syntax oddities are totally on purpose here. +const a = require("./someOtherModule");const b = "b"; const e = "e" +const c = "c"; +{}const d = "d"; + const f = "f"; // there's an irregular whitespace before and after const +const +g = "g"; +const/*wtf this is valid*/h = "h"; +const /*and this is also*/i = "i"; -exports.getLang = () => { - return language; +exports.a = function () { + return a; }; - -exports.getOtherModuleName = () => { - return someOtherModule.name; +exports.b = function () { + return b; +}; +exports.c = function () { + return c; +}; +exports.d = function () { + return d; +}; +exports.e = function () { + return e; +}; +exports.f = function () { + return f; +}; +exports.g = function () { + return g; +}; +exports.h = function () { + return h; +}; +exports.i = function () { + return i; +}; +exports.j = function () { + return j; }; - -exports.filename = __filename; -exports.dirname = __dirname; diff --git a/testLib/sharedTestCases.js b/testLib/sharedTestCases.js index 991453b..611a1d6 100644 --- a/testLib/sharedTestCases.js +++ b/testLib/sharedTestCases.js @@ -220,34 +220,24 @@ module.exports = function () { expect(rewired.__get__("someVar")).to.be("hello"); }); - it("should not be a problem to have a module that exports a boolean", function() { - expect(function() { - var rewired = rewire("./boolean.js"); - }).to.not.throwException(); + it("should not be a problem to have a module that exports a boolean", function( ) { + rewire("./boolean.js"); // should not throw }); - it("should not be a problem to have a module that exports null", function() { - expect(function() { - var rewired = rewire("./null.js"); - }).to.not.throwException(); + it("should not be a problem to have a module that exports null", function () { + rewire("./null.js"); // should not throw }); - it("should not be a problem to have a module that exports a sealed object", function() { - expect(function() { - var rewired = rewire("./sealedObject.js"); - }).to.not.throwException(); + it("should not be a problem to have a module that exports a sealed object", function () { + rewire("./sealedObject.js"); // should not throw }); - it("should not be a problem to have a module that uses object spread operator", function() { - expect(function() { - var rewired = rewire("./objectSpreadOperator.js"); - }).to.not.throwException(); + it("should not be a problem to have a module that uses object spread operator", function () { + rewire("./objectSpreadOperator.js"); // should not throw }); - it("should not be a problem to have a module that uses object rest operator", function() { - expect(function() { - var rewired = rewire("./objectRestOperator.js"); - }).to.not.throwException(); + it("should not be a problem to have a module that uses object rest operator", function () { + rewire("./objectRestOperator.js"); // should not throw }); it("should not influence the original require if nothing has been required within the rewired module", function () { @@ -384,22 +374,19 @@ module.exports = function () { revert(); }); - it("should be possible to mock a set a const variable using __set__ syntax", function() { + it("should be possible to set a const variable", function () { var constModule = rewire("./constModule"); - constModule.__set__("language", "de"); - constModule.__set__("someOtherModule", { - name: "differentModule" + "abcdefghij".split("").forEach(letter => { + constModule.__set__(letter, "this has been changed"); // should not throw + expect(constModule[letter]()).to.equal("this has been changed"); }); - expect(constModule.getLang()).to.equal("de"); - expect(constModule.getOtherModuleName()).to.equal("differentModule"); - }) - - it("should have correct __filename and __dirname when mocked using convertConst", function() { - var constModule = rewire("./constModule"); + }); - expect(constModule.filename).to.equal(require("./constModule").filename); - expect(constModule.dirname).to.equal(require("./constModule").dirname); + it("should fail with a helpful TypeError when const is re-assigned", function () { + expect(function () { + rewire("./wrongConstModule"); + }).to.throwException(/^Assignment to constant variable at .+?wrongConstModule\.js:4:1$/); }); }; diff --git a/testLib/throwError.js b/testLib/throwError.js index ffb6a71..e85ea36 100644 --- a/testLib/throwError.js +++ b/testLib/throwError.js @@ -1,4 +1,4 @@ -// Using const here because we know that Babel will transform that part +// Using deliberately const here because we know that we're transform const to let const test = 1; module.exports = function () { diff --git a/testLib/wrongConstModule.js b/testLib/wrongConstModule.js new file mode 100644 index 0000000..901892c --- /dev/null +++ b/testLib/wrongConstModule.js @@ -0,0 +1,4 @@ +// Assigning to a const should fail +const a = "a"; + +a = "b"; From 13cb24e35f670343d9ea6959f544e1d30cf8ea12 Mon Sep 17 00:00:00 2001 From: Johannes Ewald Date: Mon, 9 Apr 2018 23:54:34 +0200 Subject: [PATCH 5/7] Maintain column width when transforming consts --- lib/moduleEnv.js | 10 ++++++---- testLib/sharedTestCases.js | 5 +---- testLib/throwError.js | 7 +++---- 3 files changed, 10 insertions(+), 12 deletions(-) diff --git a/lib/moduleEnv.js b/lib/moduleEnv.js index cbb76d9..688401e 100644 --- a/lib/moduleEnv.js +++ b/lib/moduleEnv.js @@ -111,17 +111,19 @@ function jsExtension(module, filename) { var _compile = module._compile; module._compile = function (content, filename) { - const noConstAssignMessage = linter.verify(content, eslintOptions).find(isNoConstAssignMessage); + var noConstAssignMessage = linter.verify(content, eslintOptions).find(isNoConstAssignMessage); + var line; + var column; if (noConstAssignMessage !== undefined) { - const { line, column } = noConstAssignMessage; - + line = noConstAssignMessage.line; + column = noConstAssignMessage.column; throw new TypeError(`Assignment to constant variable at ${ filename }:${ line }:${ column }`); } _compile.call( module, - content.replace(matchConst, "$1let$2"), // replace const with let + content.replace(matchConst, "$1let $2"), // replace const with let, while maintaining the column width filename ); }; diff --git a/testLib/sharedTestCases.js b/testLib/sharedTestCases.js index 611a1d6..aa18516 100644 --- a/testLib/sharedTestCases.js +++ b/testLib/sharedTestCases.js @@ -260,14 +260,11 @@ module.exports = function () { it("should not modify line numbers in stack traces", function () { var throwError = rewire("./throwError.js"); - if (process.env.running_under_istanbul === "1") { - return; - } try { throwError(); } catch (err) { if (err.stack) { - expect(err.stack.split("\n")[1]).to.match(/:7:11/); + expect(err.stack.split("\n")[1]).to.match(/:6:26/); } } }); diff --git a/testLib/throwError.js b/testLib/throwError.js index e85ea36..0993618 100644 --- a/testLib/throwError.js +++ b/testLib/throwError.js @@ -1,8 +1,7 @@ // Using deliberately const here because we know that we're transform const to let -const test = 1; +const a = "a"; module.exports = function () { - let test = 1; - - throw new Error(); + // Ensure that column numbers are correct + const b = "b"; throw new Error(); }; From e9437cc4fc137e3024163c59349866d1f30235ac Mon Sep 17 00:00:00 2001 From: Johannes Ewald Date: Tue, 10 Apr 2018 00:31:49 +0200 Subject: [PATCH 6/7] Drop official node v4 support --- .travis.yml | 1 - testLib/sharedTestCases.js | 25 ++++++++++++++++++++----- 2 files changed, 20 insertions(+), 6 deletions(-) diff --git a/.travis.yml b/.travis.yml index 5f98a89..bd4662b 100644 --- a/.travis.yml +++ b/.travis.yml @@ -1,6 +1,5 @@ language: node_js node_js: - - "4" - "6" - "8" - "9" diff --git a/testLib/sharedTestCases.js b/testLib/sharedTestCases.js index aa18516..6cd9b2e 100644 --- a/testLib/sharedTestCases.js +++ b/testLib/sharedTestCases.js @@ -13,6 +13,23 @@ var expect = require("expect.js"), __get__Src = require("../lib/__get__.js").toString(), __with__Src = require("../lib/__with__.js").toString(); +var supportsObjectSpread = (function () { + try { + eval("({...{}})"); + return true; + } catch (err) { + return false; + } +})(); +var supportsObjectRest = (function () { + try { + eval("const {...a} = {}"); + return true; + } catch (err) { + return false; + } +})(); + function checkForTypeError(err) { expect(err.constructor).to.be(TypeError); } @@ -232,11 +249,11 @@ module.exports = function () { rewire("./sealedObject.js"); // should not throw }); - it("should not be a problem to have a module that uses object spread operator", function () { + (supportsObjectSpread ? it : it.skip)("should not be a problem to have a module that uses object spread operator", function () { rewire("./objectSpreadOperator.js"); // should not throw }); - it("should not be a problem to have a module that uses object rest operator", function () { + (supportsObjectRest ? it : it.skip)("should not be a problem to have a module that uses object rest operator", function () { rewire("./objectRestOperator.js"); // should not throw }); @@ -263,9 +280,7 @@ module.exports = function () { try { throwError(); } catch (err) { - if (err.stack) { - expect(err.stack.split("\n")[1]).to.match(/:6:26/); - } + expect(err.stack.split("\n")[1]).to.match(/:6:26/); } }); From b0a287097865721d1f22a7bf8f61d2cb2e16ad10 Mon Sep 17 00:00:00 2001 From: Johannes Ewald Date: Tue, 10 Apr 2018 00:39:55 +0200 Subject: [PATCH 7/7] Fix wrong badge link in README --- README.md | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/README.md b/README.md index c8a589d..db80abb 100644 --- a/README.md +++ b/README.md @@ -5,7 +5,7 @@ rewire [![](https://img.shields.io/npm/v/rewire.svg)](https://www.npmjs.com/package/rewire) [![](https://img.shields.io/npm/dm/rewire.svg)](https://www.npmjs.com/package/rewire) [![Dependency Status](https://david-dm.org/jhnns/rewire.svg)](https://david-dm.org/jhnns/rewire) -[![Build Status](https://travis-ci.org/jhnns/rewire.svg?branch=master)](https://travis-ci.org/rewire/jhnns) +[![Build Status](https://travis-ci.org/jhnns/rewire.svg?branch=master)](https://travis-ci.org/jhnns/rewire) [![Coverage Status](https://img.shields.io/coveralls/jhnns/rewire.svg)](https://coveralls.io/r/jhnns/rewire?branch=master) rewire adds a special setter and getter to modules so you can modify their behaviour for better unit testing. You may