Added options for CLI flags to end-to-end tests

package.json

@@ -61,8 +61,8 @@
         "prettier": "prettier \"./src/*.{js,json,ts,xml,yaml}\" \"./src/**/*.{js,json,ts,xml,yaml}\" --ignore-path .prettierignore",
         "prettier:write": "npm run prettier -- --write",
         "test:unit": "jest",
-        "test:end-to-end": "jest --config=test/jest.config.js",
-        "test:end-to-end:accept": "jest --config=test/jest.config.js --globals=\"{\\\"acceptTestChanges\\\": true }\"",
+        "test:end-to-end": "jest --config=test/jest.config.js --runInBand",
+        "test:end-to-end:accept": "jest --config=test/jest.config.js --globals=\"{\\\"acceptTestChanges\\\": true }\"  --runInBand",
         "tsc": "tsc"
     },
     "version": "0.2.2"

test/createTestArgs.ts

@@ -4,13 +4,13 @@ import { promisify } from "util";
 
 const readdir = promisify(fs.readdir);
 
-export const createTestArgs = async (cwd: string) => {
+export const createTestArgs = async (cwd: string, extraArgs: string[]) => {
     const items = new Set(await readdir(cwd));
     const flags = ["--config", path.join(cwd, ".eslintrc.json")];
 
     if (items.has("tslint.json")) {
         flags.push("--tslint", path.join(cwd, "tslint.json"));
     }
 
-    return flags.map(flag => `"${flag}"`).join(" ");
+    return [...flags.map(flag => `"${flag}"`).join(" "), ...extraArgs];
 };

test/createTests.ts

@@ -4,45 +4,70 @@ import * as path from "path";
 import { promisify } from "util";
 
 import { createTestArgs } from "./createTestArgs";
-import { PromiseValue } from "../src/utils";
 import { assertFileContents } from "./expectFileContains";
 
 const exec = promisify(cp.exec);
 const readFile = promisify(fs.readFile);
 
-export const createTests = (cwd: string) => {
+export type TestSettings = {
+    /**
+     * Expected location of the output ESLint configuration file.
+     */
+    eslint?: string;
+
+    /**
+     * Any extra commands to pass to the CLI.
+     */
+    extraArgs?: string[];
+};
+
+jest.setTimeout(10000);
+
+const act = async (testArgs: string[]) => {
+    try {
+        return await exec(`ts-node bin/tslint-to-eslint-config ${testArgs.join(" ")}`);
+    } catch (error) {
+        return error;
+    }
+};
+
+export const createTests = (
+    cwd: string,
+    { eslint = "./.eslintrc.json", extraArgs = [] }: TestSettings = {},
+) => {
     const testName = path.basename(cwd);
     const accept = "acceptTestChanges" in globalThis;
     const cwdPath = (fileName: string) => path.join(cwd, fileName);
     const readTestFile = async (fileName: string) => (await readFile(cwdPath(fileName))).toString();
 
     describe(testName, () => {
-        let result: PromiseValue<ReturnType<typeof exec>>;
-        beforeAll(async () => {
+        test("configuration output", async () => {
             // Arrange
-            const args = await createTestArgs(cwd);
+            const testArgs = await createTestArgs(cwd, extraArgs);
 
             // Act
-            try {
-                result = await exec(`ts-node bin/tslint-to-eslint-config ${args}`);
-            } catch (error) {
-                result = error;
-            }
-        });
+            await act(testArgs);
 
-        test("configuration output", async () => {
-            await assertFileContents(
-                cwdPath("expected.json"),
-                await readTestFile(".eslintrc.json"),
-                accept,
-            );
+            await assertFileContents(cwdPath("expected.json"), await readTestFile(eslint), accept);
         });
 
         test("stderr", async () => {
+            // Arrange
+            const testArgs = await createTestArgs(cwd, extraArgs);
+
+            // Act
+            const result = await act(testArgs);
+
             await assertFileContents(cwdPath("stderr.txt"), result.stderr, accept);
         });
 
         test("stdout", async () => {
+            // Arrange
+            const testArgs = await createTestArgs(cwd, extraArgs);
+
+            // Act
+            const result = await act(testArgs);
+
             await assertFileContents(cwdPath("stdout.txt"), result.stdout, accept);
         });
     });

test/tests/custom eslint path/eslintrc.js

@@ -0,0 +1,31 @@
+module.exports = {
+    env: {
+        es6: true,
+        node: true,
+    },
+    parser: "@typescript-eslint/parser",
+    parserOptions: {
+        project: "tsconfig.json",
+        sourceType: "module",
+    },
+    plugins: ["@typescript-eslint", "@typescript-eslint/tslint"],
+    rules: {
+        "@typescript-eslint/array-type": "error",
+        "@typescript-eslint/interface-name-prefix": "error",
+        "no-magic-numbers": "off",
+        "prefer-template": "off",
+        "@typescript-eslint/tslint/config": [
+            "error",
+            {
+                rules: {
+                    "no-implicit-dependencies": [true, "dev"],
+                    "strict-boolean-expressions": [
+                        true,
+                        "allow-boolean-or-undefined",
+                        "allow-number",
+                    ],
+                },
+            },
+        ],
+    },
+};

test/tests/custom eslint path/expected.json

@@ -0,0 +1,31 @@
+module.exports = {
+    env: {
+        es6: true,
+        node: true,
+    },
+    parser: "@typescript-eslint/parser",
+    parserOptions: {
+        project: "tsconfig.json",
+        sourceType: "module",
+    },
+    plugins: ["@typescript-eslint", "@typescript-eslint/tslint"],
+    rules: {
+        "@typescript-eslint/array-type": "error",
+        "@typescript-eslint/interface-name-prefix": "error",
+        "no-magic-numbers": "off",
+        "prefer-template": "off",
+        "@typescript-eslint/tslint/config": [
+            "error",
+            {
+                rules: {
+                    "no-implicit-dependencies": [true, "dev"],
+                    "strict-boolean-expressions": [
+                        true,
+                        "allow-boolean-or-undefined",
+                        "allow-number",
+                    ],
+                },
+            },
+        ],
+    },
+};

test/tests/custom eslint path/stderr.txt

@@ -0,0 +1,4 @@
+❌ Could not start tslint-to-eslint: ❌
+Command failed: tslint --print-config "./tslint.json"
+Could not find configuration path. Try passing a --config to your tslint.json.
+

test/tests/custom eslint path/test.ts

@@ -0,0 +1,8 @@
+import { createTests } from "../../createTests";
+
+const eslint = "./eslintrc.js";
+
+createTests(__dirname, {
+    eslint,
+    extraArgs: ["--eslint", eslint],
+});

test/tests/custom eslint path/tslint.json

@@ -0,0 +1,35 @@
+{
+    "rules": {
+        "array-type": [true, "array"],
+        "arrow-return-shorthand": false,
+        "completed-docs": false,
+        "comment-format": false,
+        "file-name-casing": false,
+        "linebreak-style": false,
+        "interface-name": [true, "never-prefix"],
+        "member-ordering": false,
+        "newline-before-return": false,
+        "no-any": false,
+        "no-bitwise": false,
+        "no-empty": false,
+        "no-magic-numbers": false,
+        "no-import-side-effect": false,
+        "no-implicit-dependencies": [true, "dev"],
+        "no-null-keyword": false,
+        "no-parameter-reassignment": false,
+        "no-parameter-properties": false,
+        "no-submodule-imports": false,
+        "no-unbound-method": false,
+        "no-unused-variable": false,
+        "no-use-before-declare": false,
+        "prefer-conditional-expression": false,
+        "prefer-method-signature": false,
+        "prefer-switch": false,
+        "prefer-template": false,
+        "promise-function-async": false,
+        "strict-boolean-expressions": [true, "allow-boolean-or-undefined", "allow-number"],
+        "switch-default": false,
+        "switch-final-break": false,
+        "typedef": false
+    }
+}

test/tests/custom package path/expected.json

@@ -0,0 +1,31 @@
+module.exports = {
+    env: {
+        es6: true,
+        node: true,
+    },
+    parser: "@typescript-eslint/parser",
+    parserOptions: {
+        project: "tsconfig.json",
+        sourceType: "module",
+    },
+    plugins: ["@typescript-eslint", "@typescript-eslint/tslint"],
+    rules: {
+        "@typescript-eslint/array-type": "error",
+        "@typescript-eslint/interface-name-prefix": "error",
+        "no-magic-numbers": "off",
+        "prefer-template": "off",
+        "@typescript-eslint/tslint/config": [
+            "error",
+            {
+                rules: {
+                    "no-implicit-dependencies": [true, "dev"],
+                    "strict-boolean-expressions": [
+                        true,
+                        "allow-boolean-or-undefined",
+                        "allow-number",
+                    ],
+                },
+            },
+        ],
+    },
+};

test/tests/custom package path/my-package.json

@@ -0,0 +1,24 @@
+{
+    "dependencies": {
+        "chalk": "2.4.2",
+        "commander": "2.20.0",
+        "tslint": "5.18.0",
+        "typescript": "3.5.3"
+    },
+    "devDependencies": {
+        "@babel/core": "7.5.5",
+        "@babel/preset-env": "7.5.5",
+        "@babel/preset-typescript": "7.3.3",
+        "@types/jest": "24.0.15",
+        "@types/node": "12.6.8",
+        "@typescript-eslint/eslint-plugin": "1.12.0",
+        "@typescript-eslint/parser": "1.12.0",
+        "babel-jest": "24.8.0",
+        "eslint": "6.0.1",
+        "eslint-config-airbnb": "17.1.1",
+        "eslint-config-airbnb-base": "13.2.0",
+        "eslint-config-prettier": "6.0.0",
+        "eslint-plugin-import": "2.18.2"
+    },
+    "version": "1.2.3"
+}

test/tests/custom package path/stderr.txt

@@ -0,0 +1,4 @@
+❌ Could not start tslint-to-eslint: ❌
+Command failed: tslint --print-config "./tslint.json"
+Could not find configuration path. Try passing a --config to your tslint.json.
+

test/tests/custom package path/test.ts

@@ -0,0 +1,5 @@
+import { createTests } from "../../createTests";
+
+createTests(__dirname, {
+    extraArgs: ["--package", "my-package.json"],
+});

test/tests/custom package path/tslint.json

@@ -0,0 +1,35 @@
+{
+    "rules": {
+        "array-type": [true, "array"],
+        "arrow-return-shorthand": false,
+        "completed-docs": false,
+        "comment-format": false,
+        "file-name-casing": false,
+        "linebreak-style": false,
+        "interface-name": [true, "never-prefix"],
+        "member-ordering": false,
+        "newline-before-return": false,
+        "no-any": false,
+        "no-bitwise": false,
+        "no-empty": false,
+        "no-magic-numbers": false,
+        "no-import-side-effect": false,
+        "no-implicit-dependencies": [true, "dev"],
+        "no-null-keyword": false,
+        "no-parameter-reassignment": false,
+        "no-parameter-properties": false,
+        "no-submodule-imports": false,
+        "no-unbound-method": false,
+        "no-unused-variable": false,
+        "no-use-before-declare": false,
+        "prefer-conditional-expression": false,
+        "prefer-method-signature": false,
+        "prefer-switch": false,
+        "prefer-template": false,
+        "promise-function-async": false,
+        "strict-boolean-expressions": [true, "allow-boolean-or-undefined", "allow-number"],
+        "switch-default": false,
+        "switch-final-break": false,
+        "typedef": false
+    }
+}

test/tests/missing tslint.json/stderr.txt

@@ -1,5 +1,4 @@
-❌ Could not start tslint-to-eslint: ❌
-Command failed: tslint --print-config "./tslint.json"
-Could not find configuration path. Try passing a --config to your tslint.json.
-
-
+❌ Could not start tslint-to-eslint: ❌
+Command failed: tslint --print-config "./tslint.json"
+Could not find configuration path. Try passing a --config to your tslint.json.
+

test/tests/standalone tslint.json/stderr.txt

@@ -0,0 +1,4 @@
+❌ Could not start tslint-to-eslint: ❌
+Command failed: tslint --print-config "./tslint.json"
+Could not find configuration path. Try passing a --config to your tslint.json.
+

test/tests/standalone tslint.json/stdout.txt

@@ -1,4 +0,0 @@
-✨ 17 rules replaced with their ESLint equivalents. ✨
-️👀 2 rules do not yet have ESLint equivalents; defaulting to eslint-plugin-tslint. 👀
-✅ All is well! ✅
-