fix(vitest): support more array cli options (#5162)

Author: hi-ogawa

packages/vitest/src/node/cli/cli-config.ts

@@ -140,6 +140,7 @@ export const cliOptionsConfig: VitestCLIOptions = {
     description: 'Specify reporters',
     argument: '<name>',
     subcommands: null, // don't support custom objects
+    array: true,
   },
   outputFile: {
     argument: '<filename/-s>',
@@ -175,6 +176,7 @@ export const cliOptionsConfig: VitestCLIOptions = {
       extension: {
         description: 'Extension to be included in coverage. May be specified more than once when using multiple extensions (default: [".js", ".cjs", ".mjs", ".ts", ".mts", ".cts", ".tsx", ".jsx", ".vue", ".svelte"])',
         argument: '<extension>',
+        array: true,
       },
       clean: {
         description: 'Clean coverage results before running tests (default: true)',
@@ -191,6 +193,7 @@ export const cliOptionsConfig: VitestCLIOptions = {
         description: 'Coverage reporters to use. Visit https://vitest.dev/config/#coverage-reporter for more information (default: ["text", "html", "clover", "json"])',
         argument: '<name>',
         subcommands: null, // don't support custom objects
+        array: true,
       },
       reportOnFailure: {
         description: 'Generate coverage report even when tests fail (default: false)',

test/core/test/cli-test.test.ts

@@ -64,7 +64,7 @@ test('nested coverage options have correct types', async () => {
     --coverage.thresholds.branches 25
   `).coverage).toEqual({
     enabled: true,
-    reporter: 'text',
+    reporter: ['text'],
     all: true,
     provider: 'v8',
     clean: false,
@@ -119,3 +119,40 @@ test('even if coverage is boolean, don\'t fail', () => {
     provider: 'v8',
   })
 })
+
+test('array options', () => {
+  expect(parseArguments('--reporter json --coverage.reporter=html --coverage.extension ts')).toMatchInlineSnapshot(`
+    {
+      "coverage": {
+        "extension": [
+          "ts",
+        ],
+        "reporter": [
+          "html",
+        ],
+      },
+      "reporter": [
+        "json",
+      ],
+    }
+  `)
+
+  expect(parseArguments('--reporter json --reporter=default --coverage.reporter=json --coverage.reporter html --coverage.extension=ts --coverage.extension=tsx')).toMatchInlineSnapshot(`
+    {
+      "coverage": {
+        "extension": [
+          "ts",
+          "tsx",
+        ],
+        "reporter": [
+          "json",
+          "html",
+        ],
+      },
+      "reporter": [
+        "json",
+        "default",
+      ],
+    }
+  `)
+})