From 50e9be7bf8943ed7aa2d820a8759ffbb2a33d764 Mon Sep 17 00:00:00 2001
From: kulshekhar <kulshekhar@users.noreply.github.com>
Date: Mon, 19 Mar 2018 02:37:36 +0530
Subject: [PATCH 1/2] bump version patch

---
 package.json | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/package.json b/package.json
index 5f175a7921..160dbd3955 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "ts-jest",
-  "version": "22.4.1",
+  "version": "22.4.2",
   "main": "index.js",
   "types": "./dist/index.d.ts",
   "description": "A preprocessor with sourcemap support to help use Typescript with Jest",

From e4bb8a9fdd234acc5e2497c29d596bd7d0c5d366 Mon Sep 17 00:00:00 2001
From: kulshekhar <kulshekhar@users.noreply.github.com>
Date: Mon, 19 Mar 2018 02:38:11 +0530
Subject: [PATCH 2/2] allow disabling sourcemap support

---
 src/jest-types.ts                             |  1 +
 src/preprocessor.ts                           |  9 ++--
 .../disable-sourcemap-support.spec.ts         | 43 +++++++++++++++++++
 3 files changed, 48 insertions(+), 5 deletions(-)
 create mode 100644 tests/__tests__/disable-sourcemap-support.spec.ts

diff --git a/src/jest-types.ts b/src/jest-types.ts
index 893e917d14..cc60c276c7 100644
--- a/src/jest-types.ts
+++ b/src/jest-types.ts
@@ -85,4 +85,5 @@ export interface TsJestConfig {
   tsConfigFile?: string;
   enableInternalCache?: boolean;
   enableTsDiagnostics?: boolean;
+  disableSourceMapSupport?: boolean;
 }
diff --git a/src/preprocessor.ts b/src/preprocessor.ts
index e5aa403fd6..3026b43f0a 100644
--- a/src/preprocessor.ts
+++ b/src/preprocessor.ts
@@ -68,11 +68,10 @@ export function process(
     transformOptions,
   );
 
-  const modified = injectSourcemapHook(
-    filePath,
-    tsTranspiled.outputText,
-    outputText,
-  );
+  const modified =
+    tsJestConfig.disableSourceMapSupport === true
+      ? outputText
+      : injectSourcemapHook(filePath, tsTranspiled.outputText, outputText);
 
   flushLogs();
 
diff --git a/tests/__tests__/disable-sourcemap-support.spec.ts b/tests/__tests__/disable-sourcemap-support.spec.ts
new file mode 100644
index 0000000000..89f614f4e6
--- /dev/null
+++ b/tests/__tests__/disable-sourcemap-support.spec.ts
@@ -0,0 +1,43 @@
+import runJest from '../__helpers__/runJest';
+import { process } from '../../src/preprocessor';
+import * as utils from '../../src/utils';
+
+describe('sourcemap-support', () => {
+  function runProcess(jestConfig = {}) {
+    return process('input_code', 'fake_file.ts', jestConfig, {
+      instrument: false,
+    });
+  }
+
+  it('should be used by default', () => {
+    const spy = jest.spyOn(utils, 'injectSourcemapHook');
+
+    runProcess();
+    expect(spy).toHaveBeenCalled();
+
+    spy.mockReset();
+    spy.mockRestore();
+  });
+
+  it(`should not be used when the disableSourceMapSupport flag is set to true`, async () => {
+    const spy = jest.spyOn(utils, 'injectSourcemapHook');
+
+    runProcess({ globals: { 'ts-jest': { disableSourceMapSupport: true } } });
+    expect(spy).not.toHaveBeenCalled();
+
+    spy.mockReset();
+    spy.mockRestore();
+  });
+
+  it(`should be used when the disableSourceMapSupport flag is set to anything other than true`, async () => {
+    const spy = jest.spyOn(utils, 'injectSourcemapHook');
+
+    runProcess({ globals: { 'ts-jest': { disableSourceMapSupport: 'true' } } });
+    expect(spy).toHaveBeenCalled();
+    runProcess({ globals: { 'ts-jest': { disableSourceMapSupport: 1 } } });
+    expect(spy).toHaveBeenCalled();
+
+    spy.mockReset();
+    spy.mockRestore();
+  });
+});