diff --git a/src/main.test.ts b/src/main.test.ts
index 2afc7b1..7676b96 100644
--- a/src/main.test.ts
+++ b/src/main.test.ts
@@ -73,7 +73,15 @@ describe('main', () => {
             JSON.stringify({
               packageManager: 'yarn',
               engines: { node: 'test' },
-              devDependencies: { eslint: '1.1.0' },
+              devDependencies: {
+                eslint: '1.1.0',
+                jest: '1.0.0',
+                'jest-it-up': '1.0.0',
+              },
+              scripts: {
+                test: 'test script',
+                'test:watch': 'test watch script',
+              },
             }),
           );
           await writeFile(
@@ -84,6 +92,10 @@ describe('main', () => {
             path.join(repository.directoryPath, '.nvmrc'),
             'content for .nvmrc',
           );
+          await writeFile(
+            path.join(repository.directoryPath, 'jest.config.js'),
+            'content for jest.config.js',
+          );
         }
         const outputLogger = new FakeOutputLogger();
 
@@ -108,6 +120,8 @@ repo-1
   - Does the \`packageManager\` field in \`package.json\` conform? ✅
   - Does the \`engines.node\` field in \`package.json\` conform? ✅
   - Do the lint-related \`devDependencies\` in \`package.json\` conform? ✅
+  - Do the jest-related \`devDependencies\` in \`package.json\` conform? ✅
+  - Do the test-related \`scripts\` in \`package.json\` conform? ✅
 - Is \`README.md\` present? ✅
   - Does the README conform by recommending the correct Yarn version to install? ✅
   - Does the README conform by recommending node install from nodejs.org? ✅
@@ -115,8 +129,9 @@ repo-1
   - Does the README conform by recommending the correct Yarn version to install? ✅
 - Does the \`src/\` directory exist? ✅
 - Is \`.nvmrc\` present, and does it conform? ✅
+- Is \`jest.config.js\` present, and does it conform? ✅
 
-Results:       12 passed, 0 failed, 12 total
+Results:       15 passed, 0 failed, 15 total
 Elapsed time:  0 ms
 
 
@@ -128,6 +143,8 @@ repo-2
   - Does the \`packageManager\` field in \`package.json\` conform? ✅
   - Does the \`engines.node\` field in \`package.json\` conform? ✅
   - Do the lint-related \`devDependencies\` in \`package.json\` conform? ✅
+  - Do the jest-related \`devDependencies\` in \`package.json\` conform? ✅
+  - Do the test-related \`scripts\` in \`package.json\` conform? ✅
 - Is \`README.md\` present? ✅
   - Does the README conform by recommending the correct Yarn version to install? ✅
   - Does the README conform by recommending node install from nodejs.org? ✅
@@ -135,8 +152,9 @@ repo-2
   - Does the README conform by recommending the correct Yarn version to install? ✅
 - Does the \`src/\` directory exist? ✅
 - Is \`.nvmrc\` present, and does it conform? ✅
+- Is \`jest.config.js\` present, and does it conform? ✅
 
-Results:       12 passed, 0 failed, 12 total
+Results:       15 passed, 0 failed, 15 total
 Elapsed time:  0 ms
 
 `,
@@ -195,8 +213,10 @@ repo-1
   - \`src/\` does not exist in this project.
 - Is \`.nvmrc\` present, and does it conform? ❌
   - \`.nvmrc\` does not exist in this project.
+- Is \`jest.config.js\` present, and does it conform? ❌
+  - \`jest.config.js\` does not exist in this project.
 
-Results:       0 passed, 6 failed, 6 total
+Results:       0 passed, 7 failed, 7 total
 Elapsed time:  0 ms
 
 
@@ -217,8 +237,10 @@ repo-2
   - \`src/\` does not exist in this project.
 - Is \`.nvmrc\` present, and does it conform? ❌
   - \`.nvmrc\` does not exist in this project.
+- Is \`jest.config.js\` present, and does it conform? ❌
+  - \`jest.config.js\` does not exist in this project.
 
-Results:       0 passed, 6 failed, 6 total
+Results:       0 passed, 7 failed, 7 total
 Elapsed time:  0 ms
 
 `,
@@ -283,8 +305,10 @@ repo-2
   - \`src/\` does not exist in this project.
 - Is \`.nvmrc\` present, and does it conform? ❌
   - \`.nvmrc\` does not exist in this project.
+- Is \`jest.config.js\` present, and does it conform? ❌
+  - \`jest.config.js\` does not exist in this project.
 
-Results:       1 passed, 5 failed, 6 total
+Results:       1 passed, 6 failed, 7 total
 Elapsed time:  0 ms
 
 `.trimStart(),
@@ -340,7 +364,15 @@ Elapsed time:  0 ms
             JSON.stringify({
               packageManager: 'yarn',
               engines: { node: 'test' },
-              devDependencies: { eslint: '1.1.0' },
+              devDependencies: {
+                eslint: '1.1.0',
+                jest: '1.0.0',
+                'jest-it-up': '1.0.0',
+              },
+              scripts: {
+                test: 'test script',
+                'test:watch': 'test watch script',
+              },
             }),
           );
           await writeFile(
@@ -351,6 +383,10 @@ Elapsed time:  0 ms
             path.join(repository.directoryPath, '.nvmrc'),
             'content for .nvmrc',
           );
+          await writeFile(
+            path.join(repository.directoryPath, 'jest.config.js'),
+            'content for jest.config.js',
+          );
         }
         const outputLogger = new FakeOutputLogger();
 
@@ -375,6 +411,8 @@ repo-1
   - Does the \`packageManager\` field in \`package.json\` conform? ✅
   - Does the \`engines.node\` field in \`package.json\` conform? ✅
   - Do the lint-related \`devDependencies\` in \`package.json\` conform? ✅
+  - Do the jest-related \`devDependencies\` in \`package.json\` conform? ✅
+  - Do the test-related \`scripts\` in \`package.json\` conform? ✅
 - Is \`README.md\` present? ✅
   - Does the README conform by recommending the correct Yarn version to install? ✅
   - Does the README conform by recommending node install from nodejs.org? ✅
@@ -382,8 +420,9 @@ repo-1
   - Does the README conform by recommending the correct Yarn version to install? ✅
 - Does the \`src/\` directory exist? ✅
 - Is \`.nvmrc\` present, and does it conform? ✅
+- Is \`jest.config.js\` present, and does it conform? ✅
 
-Results:       12 passed, 0 failed, 12 total
+Results:       15 passed, 0 failed, 15 total
 Elapsed time:  0 ms
 
 
@@ -395,6 +434,8 @@ repo-2
   - Does the \`packageManager\` field in \`package.json\` conform? ✅
   - Does the \`engines.node\` field in \`package.json\` conform? ✅
   - Do the lint-related \`devDependencies\` in \`package.json\` conform? ✅
+  - Do the jest-related \`devDependencies\` in \`package.json\` conform? ✅
+  - Do the test-related \`scripts\` in \`package.json\` conform? ✅
 - Is \`README.md\` present? ✅
   - Does the README conform by recommending the correct Yarn version to install? ✅
   - Does the README conform by recommending node install from nodejs.org? ✅
@@ -402,8 +443,9 @@ repo-2
   - Does the README conform by recommending the correct Yarn version to install? ✅
 - Does the \`src/\` directory exist? ✅
 - Is \`.nvmrc\` present, and does it conform? ✅
+- Is \`jest.config.js\` present, and does it conform? ✅
 
-Results:       12 passed, 0 failed, 12 total
+Results:       15 passed, 0 failed, 15 total
 Elapsed time:  0 ms
 
 `,
@@ -462,8 +504,10 @@ repo-1
   - \`src/\` does not exist in this project.
 - Is \`.nvmrc\` present, and does it conform? ❌
   - \`.nvmrc\` does not exist in this project.
+- Is \`jest.config.js\` present, and does it conform? ❌
+  - \`jest.config.js\` does not exist in this project.
 
-Results:       0 passed, 6 failed, 6 total
+Results:       0 passed, 7 failed, 7 total
 Elapsed time:  0 ms
 
 
@@ -484,8 +528,10 @@ repo-2
   - \`src/\` does not exist in this project.
 - Is \`.nvmrc\` present, and does it conform? ❌
   - \`.nvmrc\` does not exist in this project.
+- Is \`jest.config.js\` present, and does it conform? ❌
+  - \`jest.config.js\` does not exist in this project.
 
-Results:       0 passed, 6 failed, 6 total
+Results:       0 passed, 7 failed, 7 total
 Elapsed time:  0 ms
 
 `,
@@ -549,8 +595,10 @@ repo-2
   - \`src/\` does not exist in this project.
 - Is \`.nvmrc\` present, and does it conform? ❌
   - \`.nvmrc\` does not exist in this project.
+- Is \`jest.config.js\` present, and does it conform? ❌
+  - \`jest.config.js\` does not exist in this project.
 
-Results:       1 passed, 5 failed, 6 total
+Results:       1 passed, 6 failed, 7 total
 Elapsed time:  0 ms
 
 `,
diff --git a/src/rules/index.ts b/src/rules/index.ts
index ced17c7..c31fb49 100644
--- a/src/rules/index.ts
+++ b/src/rules/index.ts
@@ -1,10 +1,13 @@
 import allYarnModernFilesConform from './all-yarn-modern-files-conform';
 import classicYarnConfigFileAbsent from './classic-yarn-config-file-absent';
 import packageEnginesNodeFieldConforms from './package-engines-node-field-conforms';
+import packageJestDependenciesConform from './package-jest-dependencies-conform';
 import packageLintDependenciesConform from './package-lint-dependencies-conform';
 import packagePackageManagerFieldConforms from './package-package-manager-field-conforms';
+import packageTestScriptsConform from './package-test-scripts-conform';
 import readmeListsCorrectYarnVersion from './readme-lists-correct-yarn-version';
 import readmeListsNodejsWebsite from './readme-recommends-node-install';
+import requireJestConfig from './require-jest-config';
 import requireNvmrc from './require-nvmrc';
 import requireReadme from './require-readme';
 import requireSourceDirectory from './require-source-directory';
@@ -22,4 +25,7 @@ export const rules = [
   packageEnginesNodeFieldConforms,
   readmeListsNodejsWebsite,
   packageLintDependenciesConform,
+  packageJestDependenciesConform,
+  requireJestConfig,
+  packageTestScriptsConform,
 ] as const;
diff --git a/src/rules/package-engines-node-field-conforms.test.ts b/src/rules/package-engines-node-field-conforms.test.ts
index 412c2bf..03f7daa 100644
--- a/src/rules/package-engines-node-field-conforms.test.ts
+++ b/src/rules/package-engines-node-field-conforms.test.ts
@@ -18,6 +18,7 @@ describe('Rule: package-engines-node-field-conforms', () => {
           packageManager: 'a',
           engines: { node: 'test' },
           devDependencies: { eslint: '1.0.0' },
+          scripts: { test: 'jest && jest-it-up' },
         }),
       );
       const project = buildMetaMaskRepository({
@@ -30,6 +31,7 @@ describe('Rule: package-engines-node-field-conforms', () => {
           packageManager: 'a',
           engines: { node: 'test' },
           devDependencies: { eslint: '1.0.0' },
+          scripts: { test: 'jest && jest-it-up' },
         }),
       );
 
@@ -58,6 +60,7 @@ describe('Rule: package-engines-node-field-conforms', () => {
           packageManager: 'a',
           engines: { node: 'test1' },
           devDependencies: { eslint: '1.0.0' },
+          scripts: { test: 'jest && jest-it-up' },
         }),
       );
       const project = buildMetaMaskRepository({
@@ -70,6 +73,7 @@ describe('Rule: package-engines-node-field-conforms', () => {
           packageManager: 'a',
           engines: { node: 'test2' },
           devDependencies: { eslint: '1.0.0' },
+          scripts: { test: 'jest && jest-it-up' },
         }),
       );
 
diff --git a/src/rules/package-jest-dependencies-conform.test.ts b/src/rules/package-jest-dependencies-conform.test.ts
new file mode 100644
index 0000000..128bae3
--- /dev/null
+++ b/src/rules/package-jest-dependencies-conform.test.ts
@@ -0,0 +1,223 @@
+import { writeFile } from '@metamask/utils/node';
+import path from 'path';
+
+import packageJestDependenciesConform from './package-jest-dependencies-conform';
+import { buildMetaMaskRepository, withinSandbox } from '../../tests/helpers';
+import { fail, pass } from '../rule-helpers';
+
+describe('Rule: package-jest-dependencies-conform', () => {
+  it("passes if the jest related dependencies in the project's package.json match the ones in the template's package.json", async () => {
+    await withinSandbox(async (sandbox) => {
+      const template = buildMetaMaskRepository({
+        shortname: 'template',
+        directoryPath: path.join(sandbox.directoryPath, 'template'),
+      });
+      await writeFile(
+        path.join(template.directoryPath, 'package.json'),
+        JSON.stringify({
+          packageManager: 'a',
+          engines: { node: 'test' },
+          devDependencies: {
+            jest: '1.0.0',
+            'jest-it-up': '1.0.0',
+          },
+          scripts: {
+            test: '',
+          },
+        }),
+      );
+      const project = buildMetaMaskRepository({
+        shortname: 'project',
+        directoryPath: path.join(sandbox.directoryPath, 'project'),
+      });
+      await writeFile(
+        path.join(project.directoryPath, 'package.json'),
+        JSON.stringify({
+          packageManager: 'a',
+          engines: { node: 'test' },
+          devDependencies: {
+            jest: '1.0.0',
+            'jest-it-up': '1.0.0',
+          },
+          scripts: {
+            test: '',
+          },
+        }),
+      );
+
+      const result = await packageJestDependenciesConform.execute({
+        template,
+        project,
+        pass,
+        fail,
+      });
+
+      expect(result).toStrictEqual({
+        passed: true,
+      });
+    });
+  });
+
+  it("fails if the version of a jest related dependency in the project's package.json does not match the version of the same dependency in the template's package.json", async () => {
+    await withinSandbox(async (sandbox) => {
+      const template = buildMetaMaskRepository({
+        shortname: 'template',
+        directoryPath: path.join(sandbox.directoryPath, 'template'),
+      });
+      await writeFile(
+        path.join(template.directoryPath, 'package.json'),
+        JSON.stringify({
+          packageManager: 'a',
+          engines: { node: 'test' },
+          devDependencies: {
+            jest: '1.1.0',
+            'jest-it-up': '1.0.0',
+          },
+          scripts: {
+            test: '',
+          },
+        }),
+      );
+      const project = buildMetaMaskRepository({
+        shortname: 'project',
+        directoryPath: path.join(sandbox.directoryPath, 'project'),
+      });
+      await writeFile(
+        path.join(project.directoryPath, 'package.json'),
+        JSON.stringify({
+          packageManager: 'a',
+          engines: { node: 'test' },
+          devDependencies: {
+            jest: '1.0.0',
+            'jest-it-up': '1.0.0',
+          },
+          scripts: {
+            test: '',
+          },
+        }),
+      );
+
+      const result = await packageJestDependenciesConform.execute({
+        template,
+        project,
+        pass,
+        fail,
+      });
+
+      expect(result).toStrictEqual({
+        passed: false,
+        failures: [
+          { message: '`jest` is "1.0.0", when it should be "1.1.0".' },
+        ],
+      });
+    });
+  });
+
+  it("fails if the jest related dependency exists in the template's package.json, but not in the project's package.json", async () => {
+    await withinSandbox(async (sandbox) => {
+      const template = buildMetaMaskRepository({
+        shortname: 'template',
+        directoryPath: path.join(sandbox.directoryPath, 'template'),
+      });
+      await writeFile(
+        path.join(template.directoryPath, 'package.json'),
+        JSON.stringify({
+          packageManager: 'a',
+          engines: { node: 'test' },
+          devDependencies: {
+            jest: '1.1.0',
+            'jest-it-up': '1.0.0',
+          },
+          scripts: {
+            test: '',
+          },
+        }),
+      );
+      const project = buildMetaMaskRepository({
+        shortname: 'project',
+        directoryPath: path.join(sandbox.directoryPath, 'project'),
+      });
+      await writeFile(
+        path.join(project.directoryPath, 'package.json'),
+        JSON.stringify({
+          packageManager: 'a',
+          engines: { node: 'test' },
+          devDependencies: {
+            'jest-it-up': '1.0.0',
+          },
+          scripts: {
+            test: '',
+          },
+        }),
+      );
+
+      const result = await packageJestDependenciesConform.execute({
+        template,
+        project,
+        pass,
+        fail,
+      });
+
+      expect(result).toStrictEqual({
+        passed: false,
+        failures: [
+          {
+            message:
+              '`package.json` should list `"jest": "1.1.0"` in `devDependencies`, but does not.',
+          },
+        ],
+      });
+    });
+  });
+
+  it("throws error if required jest related dependency in the template's package.json does not exist", async () => {
+    await withinSandbox(async (sandbox) => {
+      const template = buildMetaMaskRepository({
+        shortname: 'template',
+        directoryPath: path.join(sandbox.directoryPath, 'template'),
+      });
+      await writeFile(
+        path.join(template.directoryPath, 'package.json'),
+        JSON.stringify({
+          packageManager: 'a',
+          engines: { node: 'test' },
+          devDependencies: {
+            'jest-it-up': '1.0.0',
+          },
+          scripts: {
+            test: '',
+          },
+        }),
+      );
+      const project = buildMetaMaskRepository({
+        shortname: 'project',
+        directoryPath: path.join(sandbox.directoryPath, 'project'),
+      });
+      await writeFile(
+        path.join(project.directoryPath, 'package.json'),
+        JSON.stringify({
+          packageManager: 'a',
+          engines: { node: 'test' },
+          devDependencies: {
+            jest: '1.0.0',
+            'jest-it-up': '1.0.0',
+          },
+          scripts: {
+            test: '',
+          },
+        }),
+      );
+
+      await expect(
+        packageJestDependenciesConform.execute({
+          template,
+          project,
+          pass,
+          fail,
+        }),
+      ).rejects.toThrow(
+        'Could not find "jest" in `devDependencies` of template\'s package.json. This is not the fault of the project, but is rather a bug in a rule.',
+      );
+    });
+  });
+});
diff --git a/src/rules/package-jest-dependencies-conform.ts b/src/rules/package-jest-dependencies-conform.ts
new file mode 100644
index 0000000..8242b18
--- /dev/null
+++ b/src/rules/package-jest-dependencies-conform.ts
@@ -0,0 +1,69 @@
+import { buildRule } from './build-rule';
+import { PackageManifestSchema, RuleName } from './types';
+import type { RuleExecutionFailure } from '../execute-rules';
+
+export default buildRule({
+  name: RuleName.PackageJestDependenciesConform,
+  description:
+    'Do the jest-related `devDependencies` in `package.json` conform?',
+  dependencies: [RuleName.RequireValidPackageManifest],
+  execute: async ({ project, template, pass, fail }) => {
+    const entryPath = 'package.json';
+
+    const templateManifest = await template.fs.readJsonFileAs(
+      entryPath,
+      PackageManifestSchema,
+    );
+
+    const projectManifest = await project.fs.readJsonFileAs(
+      entryPath,
+      PackageManifestSchema,
+    );
+
+    const failures: RuleExecutionFailure[] = await jestConform(
+      templateManifest.devDependencies,
+      projectManifest.devDependencies,
+    );
+
+    return failures.length === 0 ? pass() : fail(failures);
+  },
+});
+
+/**
+ * Validates whether target project has all the required jest packages with versions matching with template project.
+ *
+ * @param templateDependencies - The record of jest package name and version from template.
+ * @param projectDependencies - The record of jest package name and version from project.
+ */
+async function jestConform(
+  templateDependencies: Record<string, string>,
+  projectDependencies: Record<string, string>,
+): Promise<RuleExecutionFailure[]> {
+  const jestPackagesRequired = ['jest', 'jest-it-up'];
+  const failures: RuleExecutionFailure[] = [];
+  for (const jestPackage of jestPackagesRequired) {
+    const templatePackageVersion = templateDependencies[jestPackage];
+    if (!templatePackageVersion) {
+      throw new Error(
+        `Could not find "${jestPackage}" in \`devDependencies\` of template's package.json. This is not the fault of the project, but is rather a bug in a rule.`,
+      );
+    }
+
+    const projectPackageVersion = projectDependencies[jestPackage];
+    if (!projectPackageVersion) {
+      failures.push({
+        message: `\`package.json\` should list \`"${jestPackage}": "${templatePackageVersion}"\` in \`devDependencies\`, but does not.`,
+      });
+
+      continue;
+    }
+
+    if (projectPackageVersion !== templatePackageVersion) {
+      failures.push({
+        message: `\`${jestPackage}\` is "${projectPackageVersion}", when it should be "${templatePackageVersion}".`,
+      });
+    }
+  }
+
+  return failures;
+}
diff --git a/src/rules/package-lint-dependencies-conform.test.ts b/src/rules/package-lint-dependencies-conform.test.ts
index 14394e1..ee800bf 100644
--- a/src/rules/package-lint-dependencies-conform.test.ts
+++ b/src/rules/package-lint-dependencies-conform.test.ts
@@ -27,6 +27,7 @@ describe('Rule: package-lint-dependencies-conform', () => {
             'prettier-plugin-foo': '1.0.0',
             'prettier-config-foo': '1.0.0',
           },
+          scripts: { test: '' },
         }),
       );
       const project = buildMetaMaskRepository({
@@ -48,6 +49,7 @@ describe('Rule: package-lint-dependencies-conform', () => {
             'prettier-plugin-foo': '1.0.0',
             'prettier-config-foo': '1.0.0',
           },
+          scripts: { test: '' },
         }),
       );
 
@@ -76,6 +78,7 @@ describe('Rule: package-lint-dependencies-conform', () => {
           packageManager: 'a',
           engines: { node: 'test' },
           devDependencies: { eslint: '1.1.0' },
+          scripts: { test: '' },
         }),
       );
       const project = buildMetaMaskRepository({
@@ -88,6 +91,7 @@ describe('Rule: package-lint-dependencies-conform', () => {
           packageManager: 'a',
           engines: { node: 'test' },
           devDependencies: { eslint: '1.0.0' },
+          scripts: { test: '' },
         }),
       );
 
@@ -119,6 +123,7 @@ describe('Rule: package-lint-dependencies-conform', () => {
           packageManager: 'a',
           engines: { node: 'test' },
           devDependencies: { eslint: '1.1.0' },
+          scripts: { test: '' },
         }),
       );
       const project = buildMetaMaskRepository({
@@ -131,6 +136,7 @@ describe('Rule: package-lint-dependencies-conform', () => {
           packageManager: 'a',
           engines: { node: 'test' },
           devDependencies: { testlint: '1.0.0' },
+          scripts: { test: '' },
         }),
       );
 
@@ -167,6 +173,7 @@ describe('Rule: package-lint-dependencies-conform', () => {
           devDependencies: {
             '@metamask/test-config-foo': '1.0.0',
           },
+          scripts: { test: '' },
         }),
       );
       const project = buildMetaMaskRepository({
@@ -188,6 +195,7 @@ describe('Rule: package-lint-dependencies-conform', () => {
             'prettier-plugin-foo': '1.0.0',
             'prettier-config-foo': '1.0.0',
           },
+          scripts: { test: '' },
         }),
       );
 
diff --git a/src/rules/package-package-manager-field-conforms.test.ts b/src/rules/package-package-manager-field-conforms.test.ts
index 7631c7f..fce2622 100644
--- a/src/rules/package-package-manager-field-conforms.test.ts
+++ b/src/rules/package-package-manager-field-conforms.test.ts
@@ -18,6 +18,7 @@ describe('Rule: package-manager-field-conforms', () => {
           packageManager: 'a',
           engines: { node: 'test' },
           devDependencies: { eslint: '1.0.0' },
+          scripts: { test: '' },
         }),
       );
       const project = buildMetaMaskRepository({
@@ -30,6 +31,7 @@ describe('Rule: package-manager-field-conforms', () => {
           packageManager: 'a',
           engines: { node: 'test' },
           devDependencies: { eslint: '1.0.0' },
+          scripts: { test: '' },
         }),
       );
 
@@ -58,6 +60,7 @@ describe('Rule: package-manager-field-conforms', () => {
           packageManager: 'a',
           engines: { node: 'test' },
           devDependencies: { eslint: '1.0.0' },
+          scripts: { test: '' },
         }),
       );
       const project = buildMetaMaskRepository({
@@ -70,6 +73,7 @@ describe('Rule: package-manager-field-conforms', () => {
           packageManager: 'b',
           engines: { node: 'test' },
           devDependencies: { eslint: '1.0.0' },
+          scripts: { test: '' },
         }),
       );
 
diff --git a/src/rules/package-test-scripts-conform.test.ts b/src/rules/package-test-scripts-conform.test.ts
new file mode 100644
index 0000000..6197b0c
--- /dev/null
+++ b/src/rules/package-test-scripts-conform.test.ts
@@ -0,0 +1,218 @@
+import { writeFile } from '@metamask/utils/node';
+import path from 'path';
+
+import packageTestScriptsConform from './package-test-scripts-conform';
+import { buildMetaMaskRepository, withinSandbox } from '../../tests/helpers';
+import { fail, pass } from '../rule-helpers';
+
+describe('Rule: package-test-scripts-conform', () => {
+  it("passes if the test related scripts in the project's package.json match the ones in the template's package.json", async () => {
+    await withinSandbox(async (sandbox) => {
+      const template = buildMetaMaskRepository({
+        shortname: 'template',
+        directoryPath: path.join(sandbox.directoryPath, 'template'),
+      });
+      await writeFile(
+        path.join(template.directoryPath, 'package.json'),
+        JSON.stringify({
+          packageManager: 'a',
+          engines: { node: 'test' },
+          devDependencies: {
+            jest: '1.0.0',
+            'jest-it-up': '1.0.0',
+          },
+          scripts: {
+            test: 'test script',
+            'test:watch': 'test watch script',
+          },
+        }),
+      );
+      const project = buildMetaMaskRepository({
+        shortname: 'project',
+        directoryPath: path.join(sandbox.directoryPath, 'project'),
+      });
+      await writeFile(
+        path.join(project.directoryPath, 'package.json'),
+        JSON.stringify({
+          packageManager: 'a',
+          engines: { node: 'test' },
+          devDependencies: {
+            jest: '1.0.0',
+            'jest-it-up': '1.0.0',
+          },
+          scripts: {
+            test: 'test script',
+            'test:watch': 'test watch script',
+          },
+        }),
+      );
+
+      const result = await packageTestScriptsConform.execute({
+        template,
+        project,
+        pass,
+        fail,
+      });
+
+      expect(result).toStrictEqual({
+        passed: true,
+      });
+    });
+  });
+
+  it("fails if a test related script in the project's package.json does not match the same one in the template's package.json", async () => {
+    await withinSandbox(async (sandbox) => {
+      const template = buildMetaMaskRepository({
+        shortname: 'template',
+        directoryPath: path.join(sandbox.directoryPath, 'template'),
+      });
+      await writeFile(
+        path.join(template.directoryPath, 'package.json'),
+        JSON.stringify({
+          packageManager: 'a',
+          engines: { node: 'test' },
+          devDependencies: { jest: '1.1.0' },
+          scripts: {
+            test: 'test script',
+            'test:watch': 'test watch script',
+          },
+        }),
+      );
+      const project = buildMetaMaskRepository({
+        shortname: 'project',
+        directoryPath: path.join(sandbox.directoryPath, 'project'),
+      });
+      await writeFile(
+        path.join(project.directoryPath, 'package.json'),
+        JSON.stringify({
+          packageManager: 'a',
+          engines: { node: 'test' },
+          devDependencies: { jest: '1.0.0' },
+          scripts: {
+            test: 'test',
+            'test:watch': 'test watch script',
+          },
+        }),
+      );
+
+      const result = await packageTestScriptsConform.execute({
+        template,
+        project,
+        pass,
+        fail,
+      });
+
+      expect(result).toStrictEqual({
+        passed: false,
+        failures: [
+          { message: '`test` is "test", when it should be "test script".' },
+        ],
+      });
+    });
+  });
+
+  it("fails if a test related script exists in the template's package.json, but not in the project's package.json", async () => {
+    await withinSandbox(async (sandbox) => {
+      const template = buildMetaMaskRepository({
+        shortname: 'template',
+        directoryPath: path.join(sandbox.directoryPath, 'template'),
+      });
+      await writeFile(
+        path.join(template.directoryPath, 'package.json'),
+        JSON.stringify({
+          packageManager: 'a',
+          engines: { node: 'test' },
+          devDependencies: { jest: '1.1.0' },
+          scripts: {
+            test: 'test script',
+            'test:watch': 'test watch script',
+          },
+        }),
+      );
+      const project = buildMetaMaskRepository({
+        shortname: 'project',
+        directoryPath: path.join(sandbox.directoryPath, 'project'),
+      });
+      await writeFile(
+        path.join(project.directoryPath, 'package.json'),
+        JSON.stringify({
+          packageManager: 'a',
+          engines: { node: 'test' },
+          devDependencies: { test: '1.0.0' },
+          scripts: {
+            'test:watch': 'test watch script',
+          },
+        }),
+      );
+
+      const result = await packageTestScriptsConform.execute({
+        template,
+        project,
+        pass,
+        fail,
+      });
+
+      expect(result).toStrictEqual({
+        passed: false,
+        failures: [
+          {
+            message:
+              '`package.json` should list `"test": "test script"` in `scripts`, but does not.',
+          },
+        ],
+      });
+    });
+  });
+
+  it("throws error if there are no test related scripts in the template's package.json", async () => {
+    await withinSandbox(async (sandbox) => {
+      const template = buildMetaMaskRepository({
+        shortname: 'template',
+        directoryPath: path.join(sandbox.directoryPath, 'template'),
+      });
+      await writeFile(
+        path.join(template.directoryPath, 'package.json'),
+        JSON.stringify({
+          packageManager: 'a',
+          engines: { node: 'test' },
+          devDependencies: {
+            foo: '1.0.0',
+          },
+          scripts: {
+            'test:watch': 'test watch script',
+          },
+        }),
+      );
+      const project = buildMetaMaskRepository({
+        shortname: 'project',
+        directoryPath: path.join(sandbox.directoryPath, 'project'),
+      });
+      await writeFile(
+        path.join(project.directoryPath, 'package.json'),
+        JSON.stringify({
+          packageManager: 'a',
+          engines: { node: 'test' },
+          devDependencies: {
+            jest: '1.0.0',
+            'jest-it-up': '1.0.0',
+          },
+          scripts: {
+            test: 'test scripts',
+            'test:watch': 'test watch scripts',
+          },
+        }),
+      );
+
+      await expect(
+        packageTestScriptsConform.execute({
+          template,
+          project,
+          pass,
+          fail,
+        }),
+      ).rejects.toThrow(
+        'Could not find "test" in `scripts` of template\'s package.json. This is not the fault of the project, but is rather a bug in a rule.',
+      );
+    });
+  });
+});
diff --git a/src/rules/package-test-scripts-conform.ts b/src/rules/package-test-scripts-conform.ts
new file mode 100644
index 0000000..9d154f7
--- /dev/null
+++ b/src/rules/package-test-scripts-conform.ts
@@ -0,0 +1,68 @@
+import { buildRule } from './build-rule';
+import { PackageManifestSchema, RuleName } from './types';
+import type { RuleExecutionFailure } from '../execute-rules';
+
+export default buildRule({
+  name: RuleName.PackageTestScriptsConform,
+  description: 'Do the test-related `scripts` in `package.json` conform?',
+  dependencies: [RuleName.RequireValidPackageManifest],
+  execute: async ({ project, template, pass, fail }) => {
+    const entryPath = 'package.json';
+
+    const templateManifest = await template.fs.readJsonFileAs(
+      entryPath,
+      PackageManifestSchema,
+    );
+
+    const projectManifest = await project.fs.readJsonFileAs(
+      entryPath,
+      PackageManifestSchema,
+    );
+
+    const failures: RuleExecutionFailure[] = await testScriptsConform(
+      templateManifest.scripts,
+      projectManifest.scripts,
+    );
+
+    return failures.length === 0 ? pass() : fail(failures);
+  },
+});
+
+/**
+ * Validates whether target project has all the required test scripts matching with template project.
+ *
+ * @param templateScripts - The record of key and value from template scripts.
+ * @param projectScripts - The record of key and value from project scripts.
+ */
+async function testScriptsConform(
+  templateScripts: Record<string, string>,
+  projectScripts: Record<string, string>,
+): Promise<RuleExecutionFailure[]> {
+  const testScriptsRequired = ['test', 'test:watch'];
+  const failures: RuleExecutionFailure[] = [];
+  for (const testScriptKey of testScriptsRequired) {
+    const templateScript = templateScripts[testScriptKey];
+    if (!templateScript) {
+      throw new Error(
+        `Could not find "${testScriptKey}" in \`scripts\` of template's package.json. This is not the fault of the project, but is rather a bug in a rule.`,
+      );
+    }
+
+    const projectScript = projectScripts[testScriptKey];
+    if (!projectScript) {
+      failures.push({
+        message: `\`package.json\` should list \`"${testScriptKey}": "${templateScript}"\` in \`scripts\`, but does not.`,
+      });
+
+      continue;
+    }
+
+    if (projectScript !== templateScript) {
+      failures.push({
+        message: `\`${testScriptKey}\` is "${projectScript}", when it should be "${templateScript}".`,
+      });
+    }
+  }
+
+  return failures;
+}
diff --git a/src/rules/require-jest-config.ts b/src/rules/require-jest-config.ts
new file mode 100644
index 0000000..4d8f1e1
--- /dev/null
+++ b/src/rules/require-jest-config.ts
@@ -0,0 +1,12 @@
+import { buildRule } from './build-rule';
+import { RuleName } from './types';
+import { fileConforms } from '../rule-helpers';
+
+export default buildRule({
+  name: RuleName.RequireJestConfig,
+  description: 'Is `jest.config.js` present, and does it conform?',
+  dependencies: [],
+  execute: async (ruleExecutionArguments) => {
+    return await fileConforms('jest.config.js', ruleExecutionArguments);
+  },
+});
diff --git a/src/rules/require-valid-package-manifest.test.ts b/src/rules/require-valid-package-manifest.test.ts
index 44d5cf8..bffa2cf 100644
--- a/src/rules/require-valid-package-manifest.test.ts
+++ b/src/rules/require-valid-package-manifest.test.ts
@@ -18,6 +18,7 @@ describe('Rule: require-package-manifest', () => {
           packageManager: 'foo',
           engines: { node: 'test' },
           devDependencies: { eslint: '1.0.0' },
+          scripts: { test: 'test script' },
         }),
       );
 
@@ -82,7 +83,7 @@ describe('Rule: require-package-manifest', () => {
         failures: [
           {
             message:
-              'Invalid `package.json`: Missing `packageManager`; Missing `engines`; Missing `devDependencies`.',
+              'Invalid `package.json`: Missing `packageManager`; Missing `engines`; Missing `scripts`; Missing `devDependencies`.',
           },
         ],
       });
diff --git a/src/rules/types.ts b/src/rules/types.ts
index 0e7c34c..f3a8e68 100644
--- a/src/rules/types.ts
+++ b/src/rules/types.ts
@@ -15,6 +15,9 @@ export enum RuleName {
   PackageEnginesNodeFieldConforms = 'package-engines-node-field-conforms',
   ReadmeRecommendsNodeInstall = 'readme-recommends-node-install',
   PackageLintDependenciesConform = 'package-lint-dependencies-conform',
+  PackageJestDependenciesConform = 'package-jest-dependencies-conform',
+  RequireJestConfig = 'require-jest-config',
+  PackageTestScriptsConform = 'package-test-scripts-conform',
 }
 
 export const PackageManifestSchema = type({
@@ -22,5 +25,6 @@ export const PackageManifestSchema = type({
   engines: type({
     node: string(),
   }),
+  scripts: record(string(), string()),
   devDependencies: record(string(), string()),
 });