From 6f5b09d5fabccf06fbca25d8a6f507f66a5070a0 Mon Sep 17 00:00:00 2001
From: Elizabeth Craig <elcraig@microsoft.com>
Date: Tue, 29 Mar 2022 16:31:22 -0700
Subject: [PATCH 1/2] Remove enzyme test setup code from converged packages

---
 packages/priority-overflow/config/tests.js    |  6 -----
 packages/react-accordion/config/tests.js      |  6 -----
 packages/react-aria/config/tests.js           |  6 -----
 packages/react-avatar/config/tests.js         |  6 -----
 packages/react-badge/config/tests.js          |  6 -----
 packages/react-button/config/tests.js         |  5 ----
 packages/react-card/config/tests.js           |  5 ----
 packages/react-checkbox/config/tests.js       |  6 -----
 packages/react-combobox/config/tests.js       |  6 -----
 packages/react-dialog/config/tests.js         |  6 -----
 packages/react-divider/config/tests.js        |  6 -----
 packages/react-image/config/tests.js          |  5 ----
 packages/react-input/config/tests.js          |  6 -----
 packages/react-label/config/tests.js          |  6 -----
 packages/react-link/config/tests.js           |  6 -----
 packages/react-menu/config/tests.js           |  6 -----
 packages/react-popover/config/tests.js        |  6 -----
 packages/react-portal/config/tests.js         |  6 -----
 packages/react-provider/config/tests.js       |  6 -----
 packages/react-radio/config/tests.js          |  6 -----
 packages/react-select/config/tests.js         |  6 -----
 .../react-shared-contexts/config/tests.js     |  5 ----
 packages/react-slider/config/tests.js         |  6 -----
 packages/react-spinbutton/config/tests.js     |  6 -----
 packages/react-spinner/config/tests.js        |  6 -----
 packages/react-switch/config/tests.js         |  6 -----
 packages/react-tabs/config/tests.js           |  6 -----
 packages/react-text/config/tests.js           |  6 -----
 packages/react-textarea/config/tests.js       |  6 -----
 packages/react-theme/config/tests.js          |  6 -----
 packages/react-toolbar/config/tests.js        |  6 -----
 packages/react-tooltip/config/tests.js        |  6 -----
 packages/react-utilities/config/tests.js      |  6 -----
 scripts/beachball/.beachballrc.base.json      |  1 +
 .../plop-templates-react/config/tests.js      |  6 -----
 .../migrate-converged-pkg/index.spec.ts       | 26 ++-----------------
 .../generators/migrate-converged-pkg/index.ts | 14 +++++++++-
 37 files changed, 16 insertions(+), 225 deletions(-)

diff --git a/packages/priority-overflow/config/tests.js b/packages/priority-overflow/config/tests.js
index 3882d3702ddc99..2e211ae9e21420 100644
--- a/packages/priority-overflow/config/tests.js
+++ b/packages/priority-overflow/config/tests.js
@@ -1,7 +1 @@
 /** Jest test setup file. */
-
-const { configure } = require('enzyme');
-const Adapter = require('enzyme-adapter-react-16');
-
-// Configure enzyme.
-configure({ adapter: new Adapter() });
diff --git a/packages/react-accordion/config/tests.js b/packages/react-accordion/config/tests.js
index 3882d3702ddc99..2e211ae9e21420 100644
--- a/packages/react-accordion/config/tests.js
+++ b/packages/react-accordion/config/tests.js
@@ -1,7 +1 @@
 /** Jest test setup file. */
-
-const { configure } = require('enzyme');
-const Adapter = require('enzyme-adapter-react-16');
-
-// Configure enzyme.
-configure({ adapter: new Adapter() });
diff --git a/packages/react-aria/config/tests.js b/packages/react-aria/config/tests.js
index 3882d3702ddc99..2e211ae9e21420 100644
--- a/packages/react-aria/config/tests.js
+++ b/packages/react-aria/config/tests.js
@@ -1,7 +1 @@
 /** Jest test setup file. */
-
-const { configure } = require('enzyme');
-const Adapter = require('enzyme-adapter-react-16');
-
-// Configure enzyme.
-configure({ adapter: new Adapter() });
diff --git a/packages/react-avatar/config/tests.js b/packages/react-avatar/config/tests.js
index 3882d3702ddc99..2e211ae9e21420 100644
--- a/packages/react-avatar/config/tests.js
+++ b/packages/react-avatar/config/tests.js
@@ -1,7 +1 @@
 /** Jest test setup file. */
-
-const { configure } = require('enzyme');
-const Adapter = require('enzyme-adapter-react-16');
-
-// Configure enzyme.
-configure({ adapter: new Adapter() });
diff --git a/packages/react-badge/config/tests.js b/packages/react-badge/config/tests.js
index 3882d3702ddc99..2e211ae9e21420 100644
--- a/packages/react-badge/config/tests.js
+++ b/packages/react-badge/config/tests.js
@@ -1,7 +1 @@
 /** Jest test setup file. */
-
-const { configure } = require('enzyme');
-const Adapter = require('enzyme-adapter-react-16');
-
-// Configure enzyme.
-configure({ adapter: new Adapter() });
diff --git a/packages/react-button/config/tests.js b/packages/react-button/config/tests.js
index 9d42be853e4657..2e211ae9e21420 100644
--- a/packages/react-button/config/tests.js
+++ b/packages/react-button/config/tests.js
@@ -1,6 +1 @@
 /** Jest test setup file. */
-const { configure } = require('enzyme');
-const Adapter = require('enzyme-adapter-react-16');
-
-// Configure enzyme.
-configure({ adapter: new Adapter() });
diff --git a/packages/react-card/config/tests.js b/packages/react-card/config/tests.js
index 9d42be853e4657..2e211ae9e21420 100644
--- a/packages/react-card/config/tests.js
+++ b/packages/react-card/config/tests.js
@@ -1,6 +1 @@
 /** Jest test setup file. */
-const { configure } = require('enzyme');
-const Adapter = require('enzyme-adapter-react-16');
-
-// Configure enzyme.
-configure({ adapter: new Adapter() });
diff --git a/packages/react-checkbox/config/tests.js b/packages/react-checkbox/config/tests.js
index 3882d3702ddc99..2e211ae9e21420 100644
--- a/packages/react-checkbox/config/tests.js
+++ b/packages/react-checkbox/config/tests.js
@@ -1,7 +1 @@
 /** Jest test setup file. */
-
-const { configure } = require('enzyme');
-const Adapter = require('enzyme-adapter-react-16');
-
-// Configure enzyme.
-configure({ adapter: new Adapter() });
diff --git a/packages/react-combobox/config/tests.js b/packages/react-combobox/config/tests.js
index 3882d3702ddc99..2e211ae9e21420 100644
--- a/packages/react-combobox/config/tests.js
+++ b/packages/react-combobox/config/tests.js
@@ -1,7 +1 @@
 /** Jest test setup file. */
-
-const { configure } = require('enzyme');
-const Adapter = require('enzyme-adapter-react-16');
-
-// Configure enzyme.
-configure({ adapter: new Adapter() });
diff --git a/packages/react-dialog/config/tests.js b/packages/react-dialog/config/tests.js
index 3882d3702ddc99..2e211ae9e21420 100644
--- a/packages/react-dialog/config/tests.js
+++ b/packages/react-dialog/config/tests.js
@@ -1,7 +1 @@
 /** Jest test setup file. */
-
-const { configure } = require('enzyme');
-const Adapter = require('enzyme-adapter-react-16');
-
-// Configure enzyme.
-configure({ adapter: new Adapter() });
diff --git a/packages/react-divider/config/tests.js b/packages/react-divider/config/tests.js
index 3882d3702ddc99..2e211ae9e21420 100644
--- a/packages/react-divider/config/tests.js
+++ b/packages/react-divider/config/tests.js
@@ -1,7 +1 @@
 /** Jest test setup file. */
-
-const { configure } = require('enzyme');
-const Adapter = require('enzyme-adapter-react-16');
-
-// Configure enzyme.
-configure({ adapter: new Adapter() });
diff --git a/packages/react-image/config/tests.js b/packages/react-image/config/tests.js
index 9d42be853e4657..2e211ae9e21420 100644
--- a/packages/react-image/config/tests.js
+++ b/packages/react-image/config/tests.js
@@ -1,6 +1 @@
 /** Jest test setup file. */
-const { configure } = require('enzyme');
-const Adapter = require('enzyme-adapter-react-16');
-
-// Configure enzyme.
-configure({ adapter: new Adapter() });
diff --git a/packages/react-input/config/tests.js b/packages/react-input/config/tests.js
index 3882d3702ddc99..2e211ae9e21420 100644
--- a/packages/react-input/config/tests.js
+++ b/packages/react-input/config/tests.js
@@ -1,7 +1 @@
 /** Jest test setup file. */
-
-const { configure } = require('enzyme');
-const Adapter = require('enzyme-adapter-react-16');
-
-// Configure enzyme.
-configure({ adapter: new Adapter() });
diff --git a/packages/react-label/config/tests.js b/packages/react-label/config/tests.js
index 3882d3702ddc99..2e211ae9e21420 100644
--- a/packages/react-label/config/tests.js
+++ b/packages/react-label/config/tests.js
@@ -1,7 +1 @@
 /** Jest test setup file. */
-
-const { configure } = require('enzyme');
-const Adapter = require('enzyme-adapter-react-16');
-
-// Configure enzyme.
-configure({ adapter: new Adapter() });
diff --git a/packages/react-link/config/tests.js b/packages/react-link/config/tests.js
index 3882d3702ddc99..2e211ae9e21420 100644
--- a/packages/react-link/config/tests.js
+++ b/packages/react-link/config/tests.js
@@ -1,7 +1 @@
 /** Jest test setup file. */
-
-const { configure } = require('enzyme');
-const Adapter = require('enzyme-adapter-react-16');
-
-// Configure enzyme.
-configure({ adapter: new Adapter() });
diff --git a/packages/react-menu/config/tests.js b/packages/react-menu/config/tests.js
index 191015c9f4a2d0..c6c67de97059e8 100644
--- a/packages/react-menu/config/tests.js
+++ b/packages/react-menu/config/tests.js
@@ -1,9 +1,3 @@
 /** Jest test setup file. */
 
 require('@testing-library/jest-dom');
-
-const { configure } = require('enzyme');
-const Adapter = require('enzyme-adapter-react-16');
-
-// Configure enzyme.
-configure({ adapter: new Adapter() });
diff --git a/packages/react-popover/config/tests.js b/packages/react-popover/config/tests.js
index 3882d3702ddc99..2e211ae9e21420 100644
--- a/packages/react-popover/config/tests.js
+++ b/packages/react-popover/config/tests.js
@@ -1,7 +1 @@
 /** Jest test setup file. */
-
-const { configure } = require('enzyme');
-const Adapter = require('enzyme-adapter-react-16');
-
-// Configure enzyme.
-configure({ adapter: new Adapter() });
diff --git a/packages/react-portal/config/tests.js b/packages/react-portal/config/tests.js
index 3882d3702ddc99..2e211ae9e21420 100644
--- a/packages/react-portal/config/tests.js
+++ b/packages/react-portal/config/tests.js
@@ -1,7 +1 @@
 /** Jest test setup file. */
-
-const { configure } = require('enzyme');
-const Adapter = require('enzyme-adapter-react-16');
-
-// Configure enzyme.
-configure({ adapter: new Adapter() });
diff --git a/packages/react-provider/config/tests.js b/packages/react-provider/config/tests.js
index 3882d3702ddc99..2e211ae9e21420 100644
--- a/packages/react-provider/config/tests.js
+++ b/packages/react-provider/config/tests.js
@@ -1,7 +1 @@
 /** Jest test setup file. */
-
-const { configure } = require('enzyme');
-const Adapter = require('enzyme-adapter-react-16');
-
-// Configure enzyme.
-configure({ adapter: new Adapter() });
diff --git a/packages/react-radio/config/tests.js b/packages/react-radio/config/tests.js
index 3882d3702ddc99..2e211ae9e21420 100644
--- a/packages/react-radio/config/tests.js
+++ b/packages/react-radio/config/tests.js
@@ -1,7 +1 @@
 /** Jest test setup file. */
-
-const { configure } = require('enzyme');
-const Adapter = require('enzyme-adapter-react-16');
-
-// Configure enzyme.
-configure({ adapter: new Adapter() });
diff --git a/packages/react-select/config/tests.js b/packages/react-select/config/tests.js
index 3882d3702ddc99..2e211ae9e21420 100644
--- a/packages/react-select/config/tests.js
+++ b/packages/react-select/config/tests.js
@@ -1,7 +1 @@
 /** Jest test setup file. */
-
-const { configure } = require('enzyme');
-const Adapter = require('enzyme-adapter-react-16');
-
-// Configure enzyme.
-configure({ adapter: new Adapter() });
diff --git a/packages/react-shared-contexts/config/tests.js b/packages/react-shared-contexts/config/tests.js
index 9d42be853e4657..2e211ae9e21420 100644
--- a/packages/react-shared-contexts/config/tests.js
+++ b/packages/react-shared-contexts/config/tests.js
@@ -1,6 +1 @@
 /** Jest test setup file. */
-const { configure } = require('enzyme');
-const Adapter = require('enzyme-adapter-react-16');
-
-// Configure enzyme.
-configure({ adapter: new Adapter() });
diff --git a/packages/react-slider/config/tests.js b/packages/react-slider/config/tests.js
index 3882d3702ddc99..2e211ae9e21420 100644
--- a/packages/react-slider/config/tests.js
+++ b/packages/react-slider/config/tests.js
@@ -1,7 +1 @@
 /** Jest test setup file. */
-
-const { configure } = require('enzyme');
-const Adapter = require('enzyme-adapter-react-16');
-
-// Configure enzyme.
-configure({ adapter: new Adapter() });
diff --git a/packages/react-spinbutton/config/tests.js b/packages/react-spinbutton/config/tests.js
index 3882d3702ddc99..2e211ae9e21420 100644
--- a/packages/react-spinbutton/config/tests.js
+++ b/packages/react-spinbutton/config/tests.js
@@ -1,7 +1 @@
 /** Jest test setup file. */
-
-const { configure } = require('enzyme');
-const Adapter = require('enzyme-adapter-react-16');
-
-// Configure enzyme.
-configure({ adapter: new Adapter() });
diff --git a/packages/react-spinner/config/tests.js b/packages/react-spinner/config/tests.js
index 3882d3702ddc99..2e211ae9e21420 100644
--- a/packages/react-spinner/config/tests.js
+++ b/packages/react-spinner/config/tests.js
@@ -1,7 +1 @@
 /** Jest test setup file. */
-
-const { configure } = require('enzyme');
-const Adapter = require('enzyme-adapter-react-16');
-
-// Configure enzyme.
-configure({ adapter: new Adapter() });
diff --git a/packages/react-switch/config/tests.js b/packages/react-switch/config/tests.js
index 3882d3702ddc99..2e211ae9e21420 100644
--- a/packages/react-switch/config/tests.js
+++ b/packages/react-switch/config/tests.js
@@ -1,7 +1 @@
 /** Jest test setup file. */
-
-const { configure } = require('enzyme');
-const Adapter = require('enzyme-adapter-react-16');
-
-// Configure enzyme.
-configure({ adapter: new Adapter() });
diff --git a/packages/react-tabs/config/tests.js b/packages/react-tabs/config/tests.js
index 3882d3702ddc99..2e211ae9e21420 100644
--- a/packages/react-tabs/config/tests.js
+++ b/packages/react-tabs/config/tests.js
@@ -1,7 +1 @@
 /** Jest test setup file. */
-
-const { configure } = require('enzyme');
-const Adapter = require('enzyme-adapter-react-16');
-
-// Configure enzyme.
-configure({ adapter: new Adapter() });
diff --git a/packages/react-text/config/tests.js b/packages/react-text/config/tests.js
index 191015c9f4a2d0..c6c67de97059e8 100644
--- a/packages/react-text/config/tests.js
+++ b/packages/react-text/config/tests.js
@@ -1,9 +1,3 @@
 /** Jest test setup file. */
 
 require('@testing-library/jest-dom');
-
-const { configure } = require('enzyme');
-const Adapter = require('enzyme-adapter-react-16');
-
-// Configure enzyme.
-configure({ adapter: new Adapter() });
diff --git a/packages/react-textarea/config/tests.js b/packages/react-textarea/config/tests.js
index 3882d3702ddc99..2e211ae9e21420 100644
--- a/packages/react-textarea/config/tests.js
+++ b/packages/react-textarea/config/tests.js
@@ -1,7 +1 @@
 /** Jest test setup file. */
-
-const { configure } = require('enzyme');
-const Adapter = require('enzyme-adapter-react-16');
-
-// Configure enzyme.
-configure({ adapter: new Adapter() });
diff --git a/packages/react-theme/config/tests.js b/packages/react-theme/config/tests.js
index 3882d3702ddc99..2e211ae9e21420 100644
--- a/packages/react-theme/config/tests.js
+++ b/packages/react-theme/config/tests.js
@@ -1,7 +1 @@
 /** Jest test setup file. */
-
-const { configure } = require('enzyme');
-const Adapter = require('enzyme-adapter-react-16');
-
-// Configure enzyme.
-configure({ adapter: new Adapter() });
diff --git a/packages/react-toolbar/config/tests.js b/packages/react-toolbar/config/tests.js
index 3882d3702ddc99..2e211ae9e21420 100644
--- a/packages/react-toolbar/config/tests.js
+++ b/packages/react-toolbar/config/tests.js
@@ -1,7 +1 @@
 /** Jest test setup file. */
-
-const { configure } = require('enzyme');
-const Adapter = require('enzyme-adapter-react-16');
-
-// Configure enzyme.
-configure({ adapter: new Adapter() });
diff --git a/packages/react-tooltip/config/tests.js b/packages/react-tooltip/config/tests.js
index 3882d3702ddc99..2e211ae9e21420 100644
--- a/packages/react-tooltip/config/tests.js
+++ b/packages/react-tooltip/config/tests.js
@@ -1,7 +1 @@
 /** Jest test setup file. */
-
-const { configure } = require('enzyme');
-const Adapter = require('enzyme-adapter-react-16');
-
-// Configure enzyme.
-configure({ adapter: new Adapter() });
diff --git a/packages/react-utilities/config/tests.js b/packages/react-utilities/config/tests.js
index 3882d3702ddc99..2e211ae9e21420 100644
--- a/packages/react-utilities/config/tests.js
+++ b/packages/react-utilities/config/tests.js
@@ -1,7 +1 @@
 /** Jest test setup file. */
-
-const { configure } = require('enzyme');
-const Adapter = require('enzyme-adapter-react-16');
-
-// Configure enzyme.
-configure({ adapter: new Adapter() });
diff --git a/scripts/beachball/.beachballrc.base.json b/scripts/beachball/.beachballrc.base.json
index 4e5bbf9fdcc021..264258512b8147 100644
--- a/scripts/beachball/.beachballrc.base.json
+++ b/scripts/beachball/.beachballrc.base.json
@@ -10,6 +10,7 @@
     "**/__fixtures__/**",
     "**/__mocks__/**",
     "**/common/isConformant.ts",
+    "**/config/tests.js",
     "**/jest.config.js",
     "**/SPEC*.md",
     "**/tests/**"
diff --git a/scripts/create-package/plop-templates-react/config/tests.js b/scripts/create-package/plop-templates-react/config/tests.js
index 3882d3702ddc99..2e211ae9e21420 100644
--- a/scripts/create-package/plop-templates-react/config/tests.js
+++ b/scripts/create-package/plop-templates-react/config/tests.js
@@ -1,7 +1 @@
 /** Jest test setup file. */
-
-const { configure } = require('enzyme');
-const Adapter = require('enzyme-adapter-react-16');
-
-// Configure enzyme.
-configure({ adapter: new Adapter() });
diff --git a/tools/generators/migrate-converged-pkg/index.spec.ts b/tools/generators/migrate-converged-pkg/index.spec.ts
index 3b6ccd9f975328..2c24e71933c584 100644
--- a/tools/generators/migrate-converged-pkg/index.spec.ts
+++ b/tools/generators/migrate-converged-pkg/index.spec.ts
@@ -444,28 +444,12 @@ describe('migrate-converged-pkg generator', () => {
       }
 
       let content = getJestSetupFile();
-      expect(content).toMatchInlineSnapshot(`
-        "/** Jest test setup file. */
-
-        const { configure } = require('enzyme');
-        const Adapter = require('enzyme-adapter-react-16');
-
-        // Configure enzyme.
-        configure({ adapter: new Adapter() });"
-      `);
+      expect(content).toMatchInlineSnapshot(`"/** Jest test setup file. */"`);
 
       await generator(tree, options);
 
       content = getJestSetupFile();
-      expect(content).toMatchInlineSnapshot(`
-        "/** Jest test setup file. */
-
-        const { configure } = require('enzyme');
-        const Adapter = require('enzyme-adapter-react-16');
-
-        // Configure enzyme.
-        configure({ adapter: new Adapter() });"
-      `);
+      expect(content).toMatchInlineSnapshot(`"/** Jest test setup file. */"`);
 
       tree.delete(jestSetupFilePath);
       expect(tree.exists(jestSetupFilePath)).toBeFalsy();
@@ -1242,12 +1226,6 @@ function setupDummyPackage(
     `,
     jestSetupFile: stripIndents`
      /** Jest test setup file. */
-
-    const { configure } = require('enzyme');
-    const Adapter = require('enzyme-adapter-react-16');
-
-    // Configure enzyme.
-    configure({ adapter: new Adapter() });
     `,
     npmConfig: stripIndents`
       *.api.json
diff --git a/tools/generators/migrate-converged-pkg/index.ts b/tools/generators/migrate-converged-pkg/index.ts
index bf1c189ee3dbf9..1e26aa57fdce1e 100644
--- a/tools/generators/migrate-converged-pkg/index.ts
+++ b/tools/generators/migrate-converged-pkg/index.ts
@@ -753,7 +753,19 @@ function updateLocalJestConfig(tree: Tree, options: NormalizedSchema) {
 
   tree.write(options.paths.jestConfig, templates.jest(config));
 
-  if (!tree.exists(jestSetupFilePath)) {
+  if (tree.exists(jestSetupFilePath)) {
+    const content = tree.read(jestSetupFilePath)!.toString('utf-8');
+    const newContent = content.replace(
+      stripIndents`const { configure } = require('enzyme');
+        const Adapter = require('enzyme-adapter-react-16');
+
+        // Configure enzyme.
+        configure({ adapter: new Adapter() });"
+      `,
+      '',
+    );
+    tree.write(jestSetupFilePath, newContent);
+  } else {
     tree.write(jestSetupFilePath, templates.jestSetup);
   }
 

From f22b93d10f31850b803c1e2f32c2e2bee5cb01f4 Mon Sep 17 00:00:00 2001
From: Elizabeth Craig <elcraig@microsoft.com>
Date: Wed, 6 Apr 2022 19:00:30 -0700
Subject: [PATCH 2/2] revert generator and update test

---
 .../generators/migrate-converged-pkg/index.spec.ts | 12 ++----------
 tools/generators/migrate-converged-pkg/index.ts    | 14 +-------------
 2 files changed, 3 insertions(+), 23 deletions(-)

diff --git a/tools/generators/migrate-converged-pkg/index.spec.ts b/tools/generators/migrate-converged-pkg/index.spec.ts
index 2c24e71933c584..a6ebd52b637180 100644
--- a/tools/generators/migrate-converged-pkg/index.spec.ts
+++ b/tools/generators/migrate-converged-pkg/index.spec.ts
@@ -443,21 +443,13 @@ describe('migrate-converged-pkg generator', () => {
         return tree.read(jestSetupFilePath)?.toString('utf-8');
       }
 
-      let content = getJestSetupFile();
-      expect(content).toMatchInlineSnapshot(`"/** Jest test setup file. */"`);
-
-      await generator(tree, options);
-
-      content = getJestSetupFile();
-      expect(content).toMatchInlineSnapshot(`"/** Jest test setup file. */"`);
-
       tree.delete(jestSetupFilePath);
       expect(tree.exists(jestSetupFilePath)).toBeFalsy();
 
       await generator(tree, options);
 
-      content = getJestSetupFile();
-      expect(content).toMatchInlineSnapshot(`"/** Jest test setup file. */"`);
+      expect(tree.exists(jestSetupFilePath)).toBeTruthy();
+      expect(getJestSetupFile()).toMatchInlineSnapshot(`"/** Jest test setup file. */"`);
     });
   });
 
diff --git a/tools/generators/migrate-converged-pkg/index.ts b/tools/generators/migrate-converged-pkg/index.ts
index 1e26aa57fdce1e..bf1c189ee3dbf9 100644
--- a/tools/generators/migrate-converged-pkg/index.ts
+++ b/tools/generators/migrate-converged-pkg/index.ts
@@ -753,19 +753,7 @@ function updateLocalJestConfig(tree: Tree, options: NormalizedSchema) {
 
   tree.write(options.paths.jestConfig, templates.jest(config));
 
-  if (tree.exists(jestSetupFilePath)) {
-    const content = tree.read(jestSetupFilePath)!.toString('utf-8');
-    const newContent = content.replace(
-      stripIndents`const { configure } = require('enzyme');
-        const Adapter = require('enzyme-adapter-react-16');
-
-        // Configure enzyme.
-        configure({ adapter: new Adapter() });"
-      `,
-      '',
-    );
-    tree.write(jestSetupFilePath, newContent);
-  } else {
+  if (!tree.exists(jestSetupFilePath)) {
     tree.write(jestSetupFilePath, templates.jestSetup);
   }