feat(coverage): add thresholds.<glob>.100 option (#6174)

Co-authored-by: Ari Perkkiö <[email protected]>

Author: thor-juhasz

Diff for: docs/config/index.md

@@ -1377,6 +1377,31 @@ This is different from Jest behavior.
 }
 ```
 
+##### coverage.thresholds[glob-pattern].100
+
+- **Type:** `boolean`
+- **Default:** `false`
+- **Available for providers:** `'v8' | 'istanbul'`
+
+Sets thresholds to 100 for files matching the glob pattern.
+
+<!-- eslint-skip -->
+```ts
+{
+  coverage: {
+    thresholds: {
+      // Thresholds for all files
+      functions: 95,
+      branches: 70,
+
+      // Thresholds for matching glob pattern
+      'src/utils/**.ts': { 100: true },
+      '**/math.ts': { 100: true }
+    }
+  }
+}
+```
+
 #### coverage.ignoreEmptyLines
 
 - **Type:** `boolean`

Diff for: packages/vitest/src/types/coverage.ts

@@ -222,7 +222,7 @@ export interface BaseCoverageOptions {
     | ({
       [glob: string]: Pick<
         Thresholds,
-          'statements' | 'functions' | 'branches' | 'lines'
+          100 | 'statements' | 'functions' | 'branches' | 'lines'
       >
     } & Thresholds)
 

Diff for: packages/vitest/src/utils/coverage.ts

@@ -301,6 +301,15 @@ function resolveGlobThresholds(
     return {}
   }
 
+  if (100 in thresholds && thresholds[100] === true) {
+    return {
+      lines: 100,
+      branches: 100,
+      functions: 100,
+      statements: 100,
+    }
+  }
+
   return {
     lines:
       'lines' in thresholds && typeof thresholds.lines === 'number'

Diff for: test/coverage-test/test/configuration-options.test-d.ts

@@ -38,6 +38,7 @@ test('provider options, generic', () => {
       'statements': 100,
 
       '**/some-file.ts': {
+        100: true,
         lines: 12,
         branches: 12,
         functions: 12,
@@ -54,9 +55,14 @@ test('provider options, generic', () => {
       statements: [80, 95],
     },
     thresholds: {
-      '100': true,
+      '100': false,
+      'lines': 1,
+      'autoUpdate': true,
+      'perFile': true,
+      'statements': 100,
 
       '**/some-file.ts': {
+        100: false,
         lines: 12,
         branches: 12,
         functions: 12,

Diff for: test/coverage-test/test/threshold-glob.test.ts

@@ -26,6 +26,45 @@ test('threshold glob patterns count in global coverage', async () => {
   })
 })
 
+test('{ thresholds: { 100: true } } on glob pattern', async () => {
+  const { stderr, exitCode } = await runVitest({
+    include: [normalizeURL(import.meta.url)],
+    coverage: {
+      include: [
+        '**/fixtures/src/even.ts',
+        '**/fixtures/src/math.ts',
+      ],
+      thresholds: {
+        '**/fixtures/src/even.ts': {
+          100: true,
+        },
+        '**/fixtures/src/math.ts': {
+          100: true,
+        },
+      },
+    },
+  }, { throwOnError: false })
+
+  expect(exitCode).toBe(1)
+
+  if (isV8Provider()) {
+    expect(stderr).toMatchInlineSnapshot(`
+      "ERROR: Coverage for lines (50%) does not meet "**/fixtures/src/math.ts" threshold (100%)
+      ERROR: Coverage for functions (25%) does not meet "**/fixtures/src/math.ts" threshold (100%)
+      ERROR: Coverage for statements (50%) does not meet "**/fixtures/src/math.ts" threshold (100%)
+      "
+    `)
+  }
+  else {
+    expect(stderr).toMatchInlineSnapshot(`
+      "ERROR: Coverage for lines (25%) does not meet "**/fixtures/src/math.ts" threshold (100%)
+      ERROR: Coverage for functions (25%) does not meet "**/fixtures/src/math.ts" threshold (100%)
+      ERROR: Coverage for statements (25%) does not meet "**/fixtures/src/math.ts" threshold (100%)
+      "
+    `)
+  }
+})
+
 coverageTest('cover some lines, but not too much', () => {
   expect(sum(1, 2)).toBe(3)
   expect(isEven(4)).toBe(true)