refactor: refactor TsJestTransformer

e2e/__cases__/ts-jest-checks/index.spec.ts

@@ -1,12 +1,9 @@
-import { createTransformer } from 'ts-jest'
 import { readFileSync } from 'fs'
+import { ConfigSet } from 'ts-jest/dist/config/config-set'
 
-describe('tsConfig', () => {
-  it('should have digest and versions', () => {
-    const tr = createTransformer()
-    const cs = tr.configsFor(Object.create(null))
-    expect(cs.tsJestDigest).toHaveLength(40)
-    expect(cs.tsJestDigest).toBe(readFileSync(require.resolve('ts-jest/.ts-jest-digest'), 'utf8'))
-    expect(cs.versions['ts-jest']).toBe(require('ts-jest/package.json').version)
-  })
+it('should have digest and versions', () => {
+  const cs = new ConfigSet(Object.create(null))
+  expect(cs.tsJestDigest).toHaveLength(40)
+  expect(cs.tsJestDigest).toBe(readFileSync(require.resolve('ts-jest/.ts-jest-digest'), 'utf8'))
+  expect(cs.versions['ts-jest']).toBe(require('ts-jest/package.json').version)
 })

e2e/__tests__/__snapshots__/logger.test.ts.snap

@@ -7,7 +7,6 @@ Array [
   "[level:20] creating Importer singleton",
   "[level:20] checking version of jest: OK",
   "[level:20] created new transformer",
-  "[level:20] computing cache key for <cwd>/Hello.spec.ts",
   "[level:30] no matching config-set found, creating a new one",
   "[level:20] backporting config",
   "[level:20] normalized jest config",
@@ -18,6 +17,7 @@ Array [
   "[level:20] checking version of typescript: OK",
   "[level:20] readTsConfig(): reading <cwd>/tsconfig.json",
   "[level:20] normalized typescript config",
+  "[level:20] computing cache key for <cwd>/Hello.spec.ts",
   "[level:20] processing <cwd>/Hello.spec.ts",
   "[level:20] initializeLanguageServiceInstance(): create typescript compiler",
   "[level:20] file caching disabled",
@@ -44,7 +44,6 @@ Array [
   "[level:20] creating Importer singleton",
   "[level:20] checking version of jest: OK",
   "[level:20] created new transformer",
-  "[level:20] computing cache key for <cwd>/Hello.spec.ts",
   "[level:30] no matching config-set found, creating a new one",
   "[level:20] backporting config",
   "[level:20] normalized jest config",
@@ -55,6 +54,7 @@ Array [
   "[level:20] checking version of typescript: OK",
   "[level:20] readTsConfig(): reading <cwd>/tsconfig.json",
   "[level:20] normalized typescript config",
+  "[level:20] computing cache key for <cwd>/Hello.spec.ts",
   "[level:20] processing <cwd>/Hello.spec.ts",
   "[level:20] creating babel-jest transformer",
   "[level:20] loaded module babel-jest",
@@ -87,7 +87,6 @@ Array [
   "[level:20] creating Importer singleton",
   "[level:20] checking version of jest: OK",
   "[level:20] created new transformer",
-  "[level:20] computing cache key for <cwd>/Hello.spec.ts",
   "[level:30] no matching config-set found, creating a new one",
   "[level:20] backporting config",
   "[level:20] normalized jest config",
@@ -99,6 +98,7 @@ Array [
   "[level:20] checking version of typescript: OK",
   "[level:20] readTsConfig(): reading <cwd>/tsconfig.json",
   "[level:20] normalized typescript config",
+  "[level:20] computing cache key for <cwd>/Hello.spec.ts",
   "[level:20] processing <cwd>/Hello.spec.ts",
   "[level:20] creating babel-jest transformer",
   "[level:20] loaded module babel-jest",

package.json

@@ -56,6 +56,7 @@
   },
   "homepage": "https://kulshekhar.github.io/ts-jest",
   "dependencies": {
+    "@jest/create-cache-key-function": "^26.5.0",
     "@types/jest": "26.x",
     "bs-logger": "0.x",
     "buffer-from": "1.x",

src/__snapshots__/ts-jest-transformer.spec.ts.snap

@@ -0,0 +1,16 @@
+// Jest Snapshot v1, https://goo.gl/fbAQLP
+
+exports[`TsJestTransformer process should process file with babel-jest 1`] = `
+"foo;
+//# "
+`;
+
+exports[`TsJestTransformer process should process file with babel-jest 2`] = `
+"[level:40] Got a unknown file type to compile (file: foo.bar). To fix this, in your Jest config change the \`transform\` key which value is \`ts-jest\` so that it does not match this kind of files anymore. If you still want Babel to process it, add another entry to the \`transform\` option with value \`babel-jest\` which key matches this type of files.
+"
+`;
+
+exports[`TsJestTransformer process should process file with babel-jest 3`] = `
+"foo;
+//# "
+`;

src/compiler/instance.ts

@@ -10,7 +10,7 @@ import { stringify } from '../utils/json'
 /**
  * Rely on TypeScript compiled output generation which contains this prefix to point to sourcemap location.
  */
-const SOURCE_MAPPING_PREFIX = 'sourceMappingURL='
+export const SOURCE_MAPPING_PREFIX = 'sourceMappingURL='
 
 /**
  * Update the output remapping the source map.

src/config/__snapshots__/config-set.spec.ts.snap

@@ -1,7 +1,5 @@
 // Jest Snapshot v1, https://goo.gl/fbAQLP
 
-exports[`cacheKey should be a string 1`] = `"{\\"digest\\":\\"a0d51ca854194df8191d0e65c0ca4730f510f332\\",\\"jest\\":{\\"__backported\\":true,\\"globals\\":{}},\\"transformers\\":[\\"hoisting-jest-mock@4\\"],\\"tsJest\\":{\\"compiler\\":\\"typescript\\",\\"diagnostics\\":{\\"ignoreCodes\\":[6059,18002,18003],\\"pretty\\":true,\\"throws\\":true},\\"isolatedModules\\":false,\\"packageJson\\":{\\"kind\\":\\"file\\"},\\"transformers\\":{},\\"tsConfig\\":{\\"kind\\":\\"file\\",\\"value\\":\\"\\"}},\\"tsconfig\\":{\\"options\\":{\\"configFilePath\\":\\"\\",\\"declaration\\":false,\\"inlineSourceMap\\":false,\\"inlineSources\\":true,\\"module\\":1,\\"noEmit\\":false,\\"removeComments\\":false,\\"sourceMap\\":true,\\"target\\":1,\\"types\\":[]},\\"raw\\":{\\"compileOnSave\\":false,\\"compilerOptions\\":{\\"composite\\":true,\\"declaration\\":true,\\"types\\":[]},\\"exclude\\":[\\"foo/**/*\\"],\\"include\\":[\\"bar/**/*\\"]}}}"`;
-
 exports[`isTestFile should return a boolean value whether the file matches test pattern 1`] = `true`;
 
 exports[`isTestFile should return a boolean value whether the file matches test pattern 2`] = `true`;
@@ -10,74 +8,6 @@ exports[`isTestFile should return a boolean value whether the file matches test
 
 exports[`isTestFile should return a boolean value whether the file matches test pattern 4`] = `true`;
 
-exports[`jsonValue should create jsonValue based on each config and version 1`] = `
-Object {
-  "babel": undefined,
-  "digest": "a0d51ca854194df8191d0e65c0ca4730f510f332",
-  "jest": Object {
-    "__backported": true,
-    "cacheDirectory": undefined,
-    "globals": Object {},
-    "name": undefined,
-  },
-  "transformers": Array [
-    "hoisting-jest-mock@4",
-  ],
-  "tsJest": Object {
-    "babelConfig": undefined,
-    "compiler": "typescript",
-    "diagnostics": Object {
-      "ignoreCodes": Array [
-        6059,
-        18002,
-        18003,
-      ],
-      "pretty": true,
-      "throws": true,
-    },
-    "isolatedModules": false,
-    "packageJson": Object {
-      "kind": "file",
-      "value": undefined,
-    },
-    "stringifyContentPathRegex": undefined,
-    "transformers": Object {},
-    "tsConfig": Object {
-      "kind": "file",
-      "value": "",
-    },
-  },
-  "tsconfig": Object {
-    "options": Object {
-      "configFilePath": "",
-      "declaration": false,
-      "inlineSourceMap": false,
-      "inlineSources": true,
-      "module": 1,
-      "noEmit": false,
-      "removeComments": false,
-      "sourceMap": true,
-      "target": 1,
-      "types": Array [],
-    },
-    "raw": Object {
-      "compileOnSave": false,
-      "compilerOptions": Object {
-        "composite": true,
-        "declaration": true,
-        "types": Array [],
-      },
-      "exclude": Array [
-        "foo/**/*",
-      ],
-      "include": Array [
-        "bar/**/*",
-      ],
-    },
-  },
-}
-`;
-
 exports[`readTsConfig resolve configFileName normally module in tsConfig is not the same as forced module and allowSyntheticDefaultImports is false in tsConfig should use correct paths when searching 1`] = `
 Array [
   Object {