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test
testing-tools
vite
fix(coverage): use project specific `vitenode` for uncovered files (#6044)
authored by
Ari Perkkiö
and committed by
GitHub
(Aug 20, 2024, 9:43 AM +0200)
da52d23f
2c926bf2
+962
-7
+1
-3
docs/guide/workspace.md
+1
-3
docs/guide/workspace.md
···
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## Coverage
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-
Coverage for workspace projects works out of the box. But if you have [`all`](/config/#coverage-all) option enabled and use non-conventional extensions in some of your projects, you will need to have a plugin that handles this extension in your root configuration file.
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For example, if you have a package that uses Vue files and it has its own config file, but some of the files are not imported in your tests, coverage will fail trying to analyze the usage of unused files, because it relies on the root configuration rather than project configuration.
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Coverage for workspace projects works out of the box.
+3
-1
packages/coverage-istanbul/src/provider.ts
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-1
packages/coverage-istanbul/src/provider.ts
···
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const cacheKey = new Date().getTime()
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const coverageMap = libCoverage.createCoverageMap({})
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const transform = this.createUncoveredFileTransformer(this.ctx)
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// Note that these cannot be run parallel as synchronous instrumenter.lastFileCoverage
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// returns the coverage of the last transformed file
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for (const [index, filename] of uncoveredFiles.entries()) {
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debug('Uncovered file %s %d/%d', filename, index, uncoveredFiles.length)
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// Make sure file is not served from cache so that instrumenter loads up requested file coverage
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await this.ctx.vitenode.transformRequest(`${filename}?v=${cacheKey}`)
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await transform(`${filename}?v=${cacheKey}`)
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const lastCoverage = this.instrumenter.lastFileCoverage()
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coverageMap.addFileCoverage(lastCoverage)
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}
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-1
packages/coverage-v8/src/provider.ts
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-1
packages/coverage-v8/src/provider.ts
···
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const transformResults = normalizeTransformResults(
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this.ctx.vitenode.fetchCache,
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)
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const transform = this.createUncoveredFileTransformer(this.ctx)
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const allFiles = await this.testExclude.glob(this.ctx.config.root)
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let includedFiles = allFiles.map(file =>
···
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const { originalSource } = await this.getSources(
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filename.href,
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transformResults,
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file => this.ctx.vitenode.transformRequest(file),
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transform,
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)
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const coverage = {
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-2
test/coverage-test/test/all.test.ts
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-2
test/coverage-test/test/all.test.ts
···
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test('{ all: true } includes uncovered files', async () => {
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await runVitest({
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include: ['fixtures/test/**'],
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exclude: ['**/virtual-files-**'],
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exclude: ['**/virtual-files-**', '**/custom-1-syntax**'],
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coverage: {
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include: ['fixtures/src/**'],
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all: true,
···
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test('{ all: false } excludes uncovered files', async () => {
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await runVitest({
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include: ['fixtures/test/**'],
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exclude: ['**/virtual-files-**'],
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exclude: ['**/virtual-files-**', '**/custom-1-syntax**'],
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coverage: {
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include: ['fixtures/src/**'],
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all: false,
+1
test/coverage-test/test/changed.test.ts
+1
test/coverage-test/test/changed.test.ts
+43
test/coverage-test/test/workspace.multi-transform.test.ts
+43
test/coverage-test/test/workspace.multi-transform.test.ts
···
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import { expect } from 'vitest'
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import { isV8Provider, readCoverageMap, runVitest, test } from '../utils'
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test('{ all: true } includes uncovered files that require custom transform', async () => {
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await runVitest({
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workspace: 'fixtures/configs/vitest.workspace.multi-transforms.ts',
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coverage: {
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all: true,
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extension: ['.ts', '.custom-1', '.custom-2'],
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reporter: ['json', 'html'],
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include: ['**/*.custom-1', '**/*.custom-2', '**/math.ts'],
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},
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})
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const coverageMap = await readCoverageMap()
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const files = coverageMap.files()
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// All files from workspace should be picked
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expect(files).toMatchInlineSnapshot(`
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[
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"<process-cwd>/fixtures/src/covered.custom-1",
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"<process-cwd>/fixtures/src/math.ts",
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"<process-cwd>/fixtures/src/uncovered.custom-1",
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"<process-cwd>/fixtures/workspaces/custom-2/src/covered.custom-2",
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"<process-cwd>/fixtures/workspaces/custom-2/src/uncovered.custom-2",
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]
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`)
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const covered1 = coverageMap.fileCoverageFor('<process-cwd>/fixtures/src/covered.custom-1')
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const uncovered1 = coverageMap.fileCoverageFor('<process-cwd>/fixtures/src/uncovered.custom-1')
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const covered2 = coverageMap.fileCoverageFor('<process-cwd>/fixtures/workspaces/custom-2/src/covered.custom-2')
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const uncovered2 = coverageMap.fileCoverageFor('<process-cwd>/fixtures/workspaces/custom-2/src/uncovered.custom-2')
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// Coverage maps indicate whether source maps are correct. Check html-report if these change
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expect(JSON.stringify(covered1, null, 2)).toMatchFileSnapshot(snapshotName('covered-1'))
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expect(JSON.stringify(uncovered1, null, 2)).toMatchFileSnapshot(snapshotName('uncovered-1'))
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expect(JSON.stringify(covered2, null, 2)).toMatchFileSnapshot(snapshotName('covered-2'))
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expect(JSON.stringify(uncovered2, null, 2)).toMatchFileSnapshot(snapshotName('uncovered-2'))
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})
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function snapshotName(label: string) {
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return `__snapshots__/custom-file-${label}-${isV8Provider() ? 'v8' : 'istanbul'}.snapshot.json`
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}
+32
packages/vitest/src/utils/coverage.ts
+32
packages/vitest/src/utils/coverage.ts
···
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import { relative } from 'pathe'
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import mm from 'micromatch'
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import type { CoverageMap } from 'istanbul-lib-coverage'
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import type { Vitest } from '../node/core'
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import type { BaseCoverageOptions, ResolvedCoverageOptions } from '../node/types/coverage'
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import { resolveCoverageReporters } from '../node/config/resolveConfig'
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···
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return chunks
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}, [])
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}
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createUncoveredFileTransformer(ctx: Vitest) {
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const servers = [
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...ctx.projects.map(project => ({
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root: project.config.root,
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vitenode: project.vitenode,
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})),
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// Check core last as it will match all files anyway
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{ root: ctx.config.root, vitenode: ctx.vitenode },
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]
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return async function transformFile(filename: string) {
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let lastError
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for (const { root, vitenode } of servers) {
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if (!filename.startsWith(root)) {
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continue
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}
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try {
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return await vitenode.transformRequest(filename)
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}
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catch (error) {
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lastError = error
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}
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}
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// All vite-node servers failed to transform the file
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throw lastError
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}
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}
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}
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+78
test/coverage-test/fixtures/configs/vitest.workspace.multi-transforms.ts
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test/coverage-test/fixtures/configs/vitest.workspace.multi-transforms.ts
···
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import { readFileSync } from "node:fs";
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import { Plugin, defineWorkspace } from "vitest/config";
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import MagicString from "magic-string";
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export default defineWorkspace([
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// Project that uses its own "root" and custom transform plugin
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{
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test: {
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name: "custom-with-root",
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root: "fixtures/workspaces/custom-2",
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},
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plugins: [customFilePlugin("2")],
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},
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// Project that cannot transform "*.custom-x" files
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{
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test: {
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name: "normal",
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include: ["fixtures/test/math.test.ts"],
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},
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},
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// Project that uses default "root" and has custom transform plugin
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{
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test: {
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name: "custom",
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include: ["fixtures/test/custom-1-syntax.test.ts"],
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},
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plugins: [customFilePlugin("1")],
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},
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]);
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/**
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* Plugin for transforming `.custom-1` and/or `.custom-2` files to Javascript
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*/
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function customFilePlugin(postfix: "1" | "2"): Plugin {
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function transform(code: MagicString) {
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code.replaceAll(
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"<function covered>",
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`
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function covered() {
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return "Custom-${postfix} file loaded!"
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}
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`.trim()
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);
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code.replaceAll(
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"<function uncovered>",
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`
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function uncovered() {
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return "This should be uncovered!"
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}
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`.trim()
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);
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code.replaceAll("<default export covered>", "export default covered()");
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code.replaceAll("<default export uncovered>", "export default uncovered()");
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}
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return {
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name: `custom-${postfix}-file-plugin`,
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transform(_, id) {
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const filename = id.split("?")[0];
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if (filename.endsWith(`.custom-${postfix}`)) {
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const content = readFileSync(filename, "utf8");
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const s = new MagicString(content);
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transform(s);
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return {
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code: s.toString(),
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map: s.generateMap({ hires: "boundary" }),
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};
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}
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},
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};
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}
+5
test/coverage-test/fixtures/src/covered.custom-1
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test/coverage-test/fixtures/src/covered.custom-1
+3
test/coverage-test/fixtures/src/uncovered.custom-1
+3
test/coverage-test/fixtures/src/uncovered.custom-1
+8
test/coverage-test/fixtures/test/custom-1-syntax.test.ts
+8
test/coverage-test/fixtures/test/custom-1-syntax.test.ts
+83
test/coverage-test/test/__snapshots__/custom-file-covered-1-istanbul.snapshot.json
+83
test/coverage-test/test/__snapshots__/custom-file-covered-1-istanbul.snapshot.json
···
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{
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"path": "<process-cwd>/fixtures/src/covered.custom-1",
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"statementMap": {
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"0": {
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"start": {
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"line": 1,
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"column": 0
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},
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"end": {
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"line": 1,
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"column": 18
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}
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},
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"1": {
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"start": {
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"line": 3,
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"column": 0
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},
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"end": {
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"line": 3,
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"column": 20
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}
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}
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},
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"fnMap": {
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"0": {
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"name": "covered",
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"decl": {
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"start": {
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"line": 1,
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"column": 0
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},
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"end": {
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"line": 1,
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"column": 18
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}
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},
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"loc": {
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"start": {
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"line": 1,
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"column": 0
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},
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"end": {
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"line": 1,
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"column": 18
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}
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}
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},
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"1": {
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"name": "uncovered",
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"decl": {
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"start": {
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"line": 3,
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"column": 0
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},
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"end": {
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"line": 3,
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"column": 20
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}
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},
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"loc": {
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"start": {
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"line": 3,
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"column": 0
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},
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"end": {
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"line": 3,
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"column": 20
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}
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}
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}
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},
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"branchMap": {},
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"s": {
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"0": 1,
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"1": 0
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},
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"f": {
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"0": 1,
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"1": 0
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},
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"b": {}
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}
+150
test/coverage-test/test/__snapshots__/custom-file-covered-1-v8.snapshot.json
+150
test/coverage-test/test/__snapshots__/custom-file-covered-1-v8.snapshot.json
···
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{
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"path": "<process-cwd>/fixtures/src/covered.custom-1",
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"all": false,
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"statementMap": {
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"0": {
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"start": {
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"line": 1,
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"column": 0
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},
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"end": {
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"line": 1,
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"column": 18
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}
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},
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"1": {
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"start": {
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"line": 2,
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"column": 0
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},
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"end": {
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"line": 2,
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"column": 0
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}
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},
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"2": {
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"start": {
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"line": 3,
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"column": 0
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},
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"end": {
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"line": 3,
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"column": 20
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}
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},
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"3": {
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"start": {
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"line": 4,
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"column": 0
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},
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"end": {
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"line": 4,
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"column": 0
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}
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},
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"4": {
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"start": {
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"line": 5,
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"column": 0
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},
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"end": {
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"line": 5,
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"column": 24
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}
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}
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},
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"s": {
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"0": 1,
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"1": 1,
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"2": 0,
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"3": 1,
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"4": 1
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},
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"branchMap": {
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"0": {
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"type": "branch",
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"line": 1,
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"loc": {
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"start": {
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"line": 1,
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"column": 0
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},
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"end": {
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"line": 1,
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"column": 18
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}
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},
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"locations": [
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{
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"start": {
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"line": 1,
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"column": 0
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},
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"end": {
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"line": 1,
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"column": 18
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}
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}
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]
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}
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},
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"b": {
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"0": [
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1
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]
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},
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"fnMap": {
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"0": {
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"name": "covered",
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"decl": {
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"start": {
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"line": 1,
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"column": 0
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},
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"end": {
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+
"line": 1,
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"column": 18
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+
}
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},
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"loc": {
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+
"start": {
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"line": 1,
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+
"column": 0
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+
},
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"end": {
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+
"line": 1,
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"column": 18
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+
}
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},
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"line": 1
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+
},
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"1": {
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"name": "uncovered",
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"decl": {
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"start": {
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+
"line": 3,
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+
"column": 0
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+
},
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"end": {
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+
"line": 3,
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"column": 20
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+
}
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},
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"loc": {
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+
"start": {
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+
"line": 3,
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"column": 0
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+
},
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"end": {
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+
"line": 3,
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+
"column": 20
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+
}
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+
},
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"line": 3
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+
}
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+
},
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"f": {
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+
"0": 1,
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+
"1": 0
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+
}
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+
}
+83
test/coverage-test/test/__snapshots__/custom-file-covered-2-istanbul.snapshot.json
+83
test/coverage-test/test/__snapshots__/custom-file-covered-2-istanbul.snapshot.json
···
1
+
{
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+
"path": "<process-cwd>/fixtures/workspaces/custom-2/src/covered.custom-2",
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+
"statementMap": {
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+
"0": {
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+
"start": {
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+
"line": 1,
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+
"column": 0
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+
},
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"end": {
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"line": 1,
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+
"column": 18
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}
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+
},
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+
"1": {
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+
"start": {
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+
"line": 3,
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+
"column": 0
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+
},
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"end": {
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+
"line": 3,
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+
"column": 20
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+
}
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+
}
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+
},
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+
"fnMap": {
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+
"0": {
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+
"name": "covered",
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+
"decl": {
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+
"start": {
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+
"line": 1,
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+
"column": 0
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+
},
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+
"end": {
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+
"line": 1,
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+
"column": 18
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+
}
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+
},
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+
"loc": {
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+
"start": {
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+
"line": 1,
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+
"column": 0
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+
},
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+
"end": {
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+
"line": 1,
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+
"column": 18
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+
}
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+
}
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+
},
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+
"1": {
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+
"name": "uncovered",
51
+
"decl": {
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+
"start": {
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+
"line": 3,
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+
"column": 0
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+
},
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+
"end": {
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+
"line": 3,
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+
"column": 20
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+
}
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+
},
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+
"loc": {
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+
"start": {
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+
"line": 3,
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+
"column": 0
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+
},
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+
"end": {
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+
"line": 3,
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+
"column": 20
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+
}
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+
}
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+
}
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+
},
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+
"branchMap": {},
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+
"s": {
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+
"0": 1,
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+
"1": 0
77
+
},
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+
"f": {
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+
"0": 1,
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+
"1": 0
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+
},
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+
"b": {}
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+
}
+150
test/coverage-test/test/__snapshots__/custom-file-covered-2-v8.snapshot.json
+150
test/coverage-test/test/__snapshots__/custom-file-covered-2-v8.snapshot.json
···
1
+
{
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+
"path": "<process-cwd>/fixtures/workspaces/custom-2/src/covered.custom-2",
3
+
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test/coverage-test/test/__snapshots__/custom-file-uncovered-1-v8.snapshot.json
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test/coverage-test/test/__snapshots__/custom-file-uncovered-2-v8.snapshot.json
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test/coverage-test/fixtures/workspaces/custom-2/test/custom-2-syntax.test.ts
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test/coverage-test/fixtures/workspaces/custom-2/test/custom-2-syntax.test.ts