From a567e04162cff57cba0484318e15e7c6ba41a8f0 Mon Sep 17 00:00:00 2001
From: Brian Lewis <brian.lewis@code-intelligence.com>
Date: Tue, 14 Feb 2023 10:11:28 +0100
Subject: [PATCH 1/6] Add support for typescript jest test files

---
 .../.jazzerjsrc.json                          |  6 ++
 .../integration.fuzz.ts                       | 80 +++++++++++++++++++
 .../integration.test.ts                       | 39 +++++++++
 .../jest.config.js                            | 25 ++++++
 .../jest_typescript_integration/package.json  | 19 +++++
 .../jest_typescript_integration/target.ts     | 44 ++++++++++
 .../jest_typescript_integration/tsconfig.json | 18 +++++
 packages/instrumentor/instrument.ts           |  8 +-
 packages/jest-runner/package.json             |  5 +-
 packages/jest-runner/worker.ts                | 17 +++-
 10 files changed, 254 insertions(+), 7 deletions(-)
 create mode 100644 examples/jest_typescript_integration/.jazzerjsrc.json
 create mode 100644 examples/jest_typescript_integration/integration.fuzz.ts
 create mode 100644 examples/jest_typescript_integration/integration.test.ts
 create mode 100644 examples/jest_typescript_integration/jest.config.js
 create mode 100644 examples/jest_typescript_integration/package.json
 create mode 100644 examples/jest_typescript_integration/target.ts
 create mode 100644 examples/jest_typescript_integration/tsconfig.json

diff --git a/examples/jest_typescript_integration/.jazzerjsrc.json b/examples/jest_typescript_integration/.jazzerjsrc.json
new file mode 100644
index 000000000..ef5197333
--- /dev/null
+++ b/examples/jest_typescript_integration/.jazzerjsrc.json
@@ -0,0 +1,6 @@
+{
+	"includes": ["target", "integration.fuzz"],
+	"excludes": ["node_modules"],
+	"fuzzerOptions": ["-rss_limit_mb=16000"],
+	"extensions": [".ts", ".js"]
+}
diff --git a/examples/jest_typescript_integration/integration.fuzz.ts b/examples/jest_typescript_integration/integration.fuzz.ts
new file mode 100644
index 000000000..0ddc77966
--- /dev/null
+++ b/examples/jest_typescript_integration/integration.fuzz.ts
@@ -0,0 +1,80 @@
+/*
+ * Copyright 2023 Code Intelligence GmbH
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+import * as target from "./target";
+// this import is used to get the
+// eslint-disable-next-line @typescript-eslint/no-unused-vars
+import * as _ from "@jazzer.js/jest-runner/worker";
+
+describe("fuzz testing for target", () => {
+	it.fuzz("My fuzz test", (data: Buffer) => {
+		target.fuzzMe(data);
+	});
+
+	it.fuzz(
+		"My fuzz test with an explicit timeout (async)",
+		async (data: Buffer) => {
+			target.fuzzMe(data);
+		},
+		1000
+	);
+
+	it.fuzz(
+		"My fuzz test with an explicit timeout (sync)",
+		(data: Buffer) => {
+			target.fuzzMe(data);
+		},
+		1000
+	);
+
+	it.fuzz("My callback fuzz test", (data: Buffer, done: () => void) => {
+		target.callbackFuzzMe(data, done);
+	});
+
+	it.fuzz("My async fuzz test", async (data: Buffer) => {
+		await target.asyncFuzzMe(data);
+	});
+
+	// In regression mode sync timeouts can not be detected, as the main event
+	// loop is blocked and registered timeout handlers can not fire.
+	// This is not only the case in regression test mode, but also during
+	// fuzzing runs. As the main event loop is blocked, no errors can be
+	// propagated to Jest. But the timeout set in libFuzzer will trigger a
+	// finding and shut down the whole process with exit code 70.
+	it.skip.fuzz("Sync timeout", () => {
+		// eslint-disable-next-line no-constant-condition
+		while (true) {
+			// Ignore
+		}
+	});
+
+	// Timeouts for async fuzz test functions can be detected in regression and
+	// fuzzing mode. libFuzzer shuts down the process after Jest received the
+	// error and displayed its result.
+	it.skip.fuzz("Async timeout", async () => {
+		return new Promise(() => {
+			// don't resolve promise
+		});
+	});
+
+	// Timeouts for done callback fuzz test functions can be detected in
+	// regression and fuzzing mode. libFuzzer shuts down the process after Jest
+	// received the error and displayed its result.
+	// Two parameters are required to execute the done callback branch.
+	// eslint-disable-next-line @typescript-eslint/no-unused-vars
+	it.skip.fuzz("Done callback timeout", (ignore, ignore2) => {
+		// don't call done
+	});
+});
diff --git a/examples/jest_typescript_integration/integration.test.ts b/examples/jest_typescript_integration/integration.test.ts
new file mode 100644
index 000000000..3ad4519ca
--- /dev/null
+++ b/examples/jest_typescript_integration/integration.test.ts
@@ -0,0 +1,39 @@
+/*
+ * Copyright 2023 Code Intelligence GmbH
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/* eslint no-undef: 0 */
+
+import * as target from "./target";
+
+describe("My describe", () => {
+	it("My normal Jest test", () => {
+		expect(1).toEqual(1);
+	});
+
+	it("My done callback Jest test", (done) => {
+		expect(1).toEqual(1);
+		done();
+	});
+
+	it("My async Jest test", async () => {
+		expect(1).toEqual(1);
+	});
+
+	it("Test target function", () => {
+		const data = Buffer.from("a");
+		target.fuzzMe(data);
+	});
+});
diff --git a/examples/jest_typescript_integration/jest.config.js b/examples/jest_typescript_integration/jest.config.js
new file mode 100644
index 000000000..6ef03d875
--- /dev/null
+++ b/examples/jest_typescript_integration/jest.config.js
@@ -0,0 +1,25 @@
+process.env.JAZZER_FUZZ = 1;
+
+/** @type {import('ts-jest').JestConfigWithTsJest} */
+module.exports = {
+	projects: [
+		{
+			preset: "ts-jest",
+			displayName: "tests",
+			modulePathIgnorePatterns: ["dist"],
+		},
+		{
+			preset: "ts-jest",
+			runner: "@jazzer.js/jest-runner",
+			testEnvironment: "node",
+			modulePathIgnorePatterns: [
+				"dist",
+				"packages/fuzzer/build",
+				"tests/code_coverage",
+			],
+			testMatch: ["<rootDir>/*.fuzz.[jt]s"],
+			coveragePathIgnorePatterns: ["/node_modules/", "/dist/"],
+		},
+	],
+	collectCoverageFrom: ["**/*.ts"],
+};
diff --git a/examples/jest_typescript_integration/package.json b/examples/jest_typescript_integration/package.json
new file mode 100644
index 000000000..723b005bf
--- /dev/null
+++ b/examples/jest_typescript_integration/package.json
@@ -0,0 +1,19 @@
+{
+	"name": "jest_typescript_integration",
+	"version": "1.0.0",
+	"description": "An example showing how Jazzer.js integrates with Jest and TypeScript",
+	"scripts": {
+		"build": "tsc",
+		"dryRun": "jest",
+		"fuzz": "JAZZER_FUZZ=1 jest --coverage",
+		"coverage": "jest --coverage"
+	},
+	"devDependencies": {
+		"@jazzer.js/jest-runner": "file:../../packages/jest-runner",
+		"@types/jest": "^29.4.0",
+		"jest": "^29.4.1",
+		"ts-jest": "^29.0.5",
+		"typescript": "^4.9.5"
+	},
+	"dependencies": {}
+}
diff --git a/examples/jest_typescript_integration/target.ts b/examples/jest_typescript_integration/target.ts
new file mode 100644
index 000000000..ff6e0b55a
--- /dev/null
+++ b/examples/jest_typescript_integration/target.ts
@@ -0,0 +1,44 @@
+/*
+ * Copyright 2022 Code Intelligence GmbH
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+export function fuzzMe(data: Buffer) {
+	const s = data.toString();
+	if (s.length !== 16) {
+		return;
+	}
+	if (
+		s.slice(0, 8) === "Awesome " &&
+		s.slice(8, 15) === "Fuzzing" &&
+		s[15] === "!"
+	) {
+		throw Error("Welcome to Awesome Fuzzing!");
+	}
+}
+
+export function callbackFuzzMe(data: Buffer, done: () => void) {
+	// Use setImmediate here to unblock the event loop but still have better
+	// performance compared to setTimeout.
+	setImmediate(() => {
+		fuzzMe(data);
+		done();
+	});
+}
+
+export async function asyncFuzzMe(data: Buffer) {
+	return callbackFuzzMe(data, () => {
+		console.log("callback done");
+	});
+}
diff --git a/examples/jest_typescript_integration/tsconfig.json b/examples/jest_typescript_integration/tsconfig.json
new file mode 100644
index 000000000..43cb05473
--- /dev/null
+++ b/examples/jest_typescript_integration/tsconfig.json
@@ -0,0 +1,18 @@
+{
+	"compilerOptions": {
+		"target": "ES2022",
+		"module": "NodeNext",
+		"moduleResolution": "node",
+		"allowJs": true,
+		//"checkJs": true,
+		"rootDir": ".",
+		"outDir": "./dist",
+		"esModuleInterop": true,
+		"forceConsistentCasingInFileNames": true,
+		"strict": true,
+		"skipLibCheck": true,
+		"declaration": true,
+		"composite": true,
+		"sourceMap": true
+	}
+}
diff --git a/packages/instrumentor/instrument.ts b/packages/instrumentor/instrument.ts
index f1c13092b..635ca1434 100644
--- a/packages/instrumentor/instrument.ts
+++ b/packages/instrumentor/instrument.ts
@@ -73,6 +73,7 @@ export class Instrumentor {
 		const shouldInstrumentFile = this.shouldInstrumentForFuzzing(filename);
 
 		if (shouldInstrumentFile) {
+			console.log("FOUND FILE FOR INSTRUMENTATION: ", filename);
 			transformations.push(codeCoverage(this.idStrategy), compareHooks);
 		}
 
@@ -206,6 +207,11 @@ export function registerInstrumentor(instrumentor: Instrumentor) {
 		() => true,
 		(code: string, opts: TransformerOptions): string => {
 			return instrumentor.instrument(code, opts.filename);
-		}
+		},
+		// TODO: this doesn't appear to be strictly necessary for typescript tests to run but not having it here means
+		// that a warning printed when debugging (and seemingly only when debugging). It also will does not seem to
+		// instrument the typescript files when not here
+		// This should probably be handled via configuration
+		{ extensions: [".ts", ".js"] }
 	);
 }
diff --git a/packages/jest-runner/package.json b/packages/jest-runner/package.json
index 92bf3211f..cfab67ddf 100644
--- a/packages/jest-runner/package.json
+++ b/packages/jest-runner/package.json
@@ -16,10 +16,11 @@
 	"main": "dist/index.js",
 	"types": "dist/index.d.ts",
 	"dependencies": {
-		"@jazzer.js/core": "*",
+		"@jazzer.js/core": "../core",
 		"cosmiconfig": "^8.0.0",
 		"jest": "^29.4.2",
-		"istanbul-reports": "^3.1.5"
+		"istanbul-reports": "^3.1.5",
+		"ts-jest": "^29.0.5"
 	},
 	"devDependencies": {
 		"@types/istanbul-reports": "^3.0.1",
diff --git a/packages/jest-runner/worker.ts b/packages/jest-runner/worker.ts
index 43562556c..c4c8e947c 100644
--- a/packages/jest-runner/worker.ts
+++ b/packages/jest-runner/worker.ts
@@ -24,8 +24,9 @@ import { jestExpect as expect } from "@jest/expect";
 import * as circus from "jest-circus";
 import { formatResultsErrors } from "jest-message-util";
 import { inspect } from "util";
-import { fuzz, FuzzerStartError, skip } from "./fuzz";
+import { fuzz, FuzzerStartError, skip, FuzzTest } from "./fuzz";
 import { cleanupJestRunnerStack, removeTopFramesFromError } from "./errorUtils";
+import { createScriptTransformer } from "@jest/transform";
 
 function isGeneratorFunction(obj?: unknown): boolean {
 	return (
@@ -51,6 +52,15 @@ type JazzerTestResult = {
 	duration?: number;
 };
 
+declare global {
+	// eslint-disable-next-line @typescript-eslint/no-namespace
+	namespace jest {
+		interface It {
+			fuzz: FuzzTest;
+		}
+	}
+}
+
 export class JazzerWorker {
 	static #workerInitialized = false;
 	static #currentTestPath = "";
@@ -104,9 +114,7 @@ export class JazzerWorker {
 		globalThis.test.skip.fuzz = skip;
 		// @ts-ignore
 		globalThis.it = circus.it;
-		// @ts-ignore
 		globalThis.it.fuzz = fuzz;
-		// @ts-ignore
 		globalThis.it.skip.fuzz = skip;
 		// @ts-ignore
 		globalThis.describe = circus.describe;
@@ -146,7 +154,8 @@ export class JazzerWorker {
 
 	private async loadTests(test: Test): Promise<circus.State> {
 		circus.resetState();
-		await this.importFile(test.path);
+		const transformer = await createScriptTransformer(test.context.config);
+		await transformer.requireAndTranspileModule(test.path);
 		return circus.getState();
 	}
 

From bf08a58c6d841e211edb2110cb2b7828f613009d Mon Sep 17 00:00:00 2001
From: Brian Lewis <brian.lewis@code-intelligence.com>
Date: Tue, 14 Feb 2023 17:19:49 +0100
Subject: [PATCH 2/6] Clean up, add docs

---
 .../.jazzerjsrc.json                          |  3 +-
 .../jest_typescript_integration/README.md     | 68 +++++++++++++++++++
 .../integration.fuzz.ts                       |  4 +-
 .../jest.config.js                            |  5 +-
 .../jest_typescript_integration/target.ts     |  2 +-
 packages/instrumentor/instrument.ts           |  8 +--
 packages/jest-runner/jest-extension.ts        | 10 +++
 packages/jest-runner/package.json             |  2 +-
 packages/jest-runner/worker.ts                | 12 +---
 9 files changed, 90 insertions(+), 24 deletions(-)
 create mode 100644 examples/jest_typescript_integration/README.md
 create mode 100644 packages/jest-runner/jest-extension.ts

diff --git a/examples/jest_typescript_integration/.jazzerjsrc.json b/examples/jest_typescript_integration/.jazzerjsrc.json
index ef5197333..d18e831f8 100644
--- a/examples/jest_typescript_integration/.jazzerjsrc.json
+++ b/examples/jest_typescript_integration/.jazzerjsrc.json
@@ -1,6 +1,5 @@
 {
 	"includes": ["target", "integration.fuzz"],
 	"excludes": ["node_modules"],
-	"fuzzerOptions": ["-rss_limit_mb=16000"],
-	"extensions": [".ts", ".js"]
+	"fuzzerOptions": ["-rss_limit_mb=16000"]
 }
diff --git a/examples/jest_typescript_integration/README.md b/examples/jest_typescript_integration/README.md
new file mode 100644
index 000000000..b808d0267
--- /dev/null
+++ b/examples/jest_typescript_integration/README.md
@@ -0,0 +1,68 @@
+# Jest Typscript Integration Example
+
+Detailed documentation on the Jest integration is available in the main
+[Jazzer.js](https://github.com/CodeIntelligenceTesting/jazzer.js/blob/main/docs/jest-integration.md)
+documentation.
+
+## Quickstart
+
+To use the [Jest](https://jestjs.io/) integration install the
+`@jazzer.js/jest-runner` and `ts-jest` packages then configure `jest-runner` as
+a dedicated test runner in `package.json`.
+
+The example below shows how to configure the Jazzer.js Jest integration in
+combination with the normal Jest runner.
+
+```json
+  "jest": {
+    "projects": [
+      {
+        "preset": "ts-jest",
+        "displayName": "tests",
+        "modulePathIgnorePatterns": ["dist"],
+      },
+      {
+        "preset": "ts-jest",
+        "runner": "@jazzer.js/jest-runner",
+        "testEnvironment": "node",
+        "modulePathIgnorePatterns": [
+          "dist",
+          "packages/fuzzer/build",
+          "tests/code_coverage",
+        ],
+        "transformIgnorePatterns": ["node_modules"],
+        "testMatch": ["<rootDir>/*.fuzz.[jt]s"],
+        "coveragePathIgnorePatterns": ["/node_modules/", "/dist/"],
+      },
+    ],
+    "collectCoverageFrom": ["**/*.ts"],
+  }
+```
+
+Further configuration can be specified in `.jazzerjsrc.json` in the following
+format:
+
+```json
+{
+	"includes": ["*"],
+	"excludes": ["node_modules"],
+	"customHooks": [],
+	"fuzzerOptions": [],
+	"sync": false
+}
+```
+
+Write a fuzz test like:
+
+```typescript
+// file: jazzerjs.fuzz.ts
+import "@jazzer.js/jest-runner/jest-extension";
+describe("My describe", () => {
+	it.fuzz("My fuzz test", (data) => {
+		target.fuzzMe(data);
+	});
+});
+```
+
+**Note:** the `import` statement extends `jest`'s `It` interface to include the
+`fuzz` property and is necessary for Typescript to compile the test file.
diff --git a/examples/jest_typescript_integration/integration.fuzz.ts b/examples/jest_typescript_integration/integration.fuzz.ts
index 0ddc77966..7b6a9fce2 100644
--- a/examples/jest_typescript_integration/integration.fuzz.ts
+++ b/examples/jest_typescript_integration/integration.fuzz.ts
@@ -14,9 +14,7 @@
  * limitations under the License.
  */
 import * as target from "./target";
-// this import is used to get the
-// eslint-disable-next-line @typescript-eslint/no-unused-vars
-import * as _ from "@jazzer.js/jest-runner/worker";
+import "@jazzer.js/jest-runner/jest-extension";
 
 describe("fuzz testing for target", () => {
 	it.fuzz("My fuzz test", (data: Buffer) => {
diff --git a/examples/jest_typescript_integration/jest.config.js b/examples/jest_typescript_integration/jest.config.js
index 6ef03d875..6661902f2 100644
--- a/examples/jest_typescript_integration/jest.config.js
+++ b/examples/jest_typescript_integration/jest.config.js
@@ -1,5 +1,5 @@
-process.env.JAZZER_FUZZ = 1;
-
+// can be uncommented to force fuzzing on which may be useful in e.g. vscode's jest UI to run fuzzing on a single test
+// process.env.JAZZER_FUZZ = 1;
 /** @type {import('ts-jest').JestConfigWithTsJest} */
 module.exports = {
 	projects: [
@@ -17,6 +17,7 @@ module.exports = {
 				"packages/fuzzer/build",
 				"tests/code_coverage",
 			],
+			transformIgnorePatterns: ["node_modules"],
 			testMatch: ["<rootDir>/*.fuzz.[jt]s"],
 			coveragePathIgnorePatterns: ["/node_modules/", "/dist/"],
 		},
diff --git a/examples/jest_typescript_integration/target.ts b/examples/jest_typescript_integration/target.ts
index ff6e0b55a..5b05dc7f8 100644
--- a/examples/jest_typescript_integration/target.ts
+++ b/examples/jest_typescript_integration/target.ts
@@ -39,6 +39,6 @@ export function callbackFuzzMe(data: Buffer, done: () => void) {
 
 export async function asyncFuzzMe(data: Buffer) {
 	return callbackFuzzMe(data, () => {
-		console.log("callback done");
+		// can't have empty functions
 	});
 }
diff --git a/packages/instrumentor/instrument.ts b/packages/instrumentor/instrument.ts
index 635ca1434..1007d6c22 100644
--- a/packages/instrumentor/instrument.ts
+++ b/packages/instrumentor/instrument.ts
@@ -73,7 +73,6 @@ export class Instrumentor {
 		const shouldInstrumentFile = this.shouldInstrumentForFuzzing(filename);
 
 		if (shouldInstrumentFile) {
-			console.log("FOUND FILE FOR INSTRUMENTATION: ", filename);
 			transformations.push(codeCoverage(this.idStrategy), compareHooks);
 		}
 
@@ -208,10 +207,9 @@ export function registerInstrumentor(instrumentor: Instrumentor) {
 		(code: string, opts: TransformerOptions): string => {
 			return instrumentor.instrument(code, opts.filename);
 		},
-		// TODO: this doesn't appear to be strictly necessary for typescript tests to run but not having it here means
-		// that a warning printed when debugging (and seemingly only when debugging). It also will does not seem to
-		// instrument the typescript files when not here
-		// This should probably be handled via configuration
+		// required to allow jest to run typescript files
+		// jest's typescript integration will transform the typescript into javascript before giving it to the
+		// instrumentor but the filename will still have a .ts extension
 		{ extensions: [".ts", ".js"] }
 	);
 }
diff --git a/packages/jest-runner/jest-extension.ts b/packages/jest-runner/jest-extension.ts
new file mode 100644
index 000000000..27756c9c6
--- /dev/null
+++ b/packages/jest-runner/jest-extension.ts
@@ -0,0 +1,10 @@
+import { FuzzTest } from "./fuzz";
+
+declare global {
+	// eslint-disable-next-line @typescript-eslint/no-namespace
+	namespace jest {
+		interface It {
+			fuzz: FuzzTest;
+		}
+	}
+}
diff --git a/packages/jest-runner/package.json b/packages/jest-runner/package.json
index cfab67ddf..6d0e89f73 100644
--- a/packages/jest-runner/package.json
+++ b/packages/jest-runner/package.json
@@ -16,7 +16,7 @@
 	"main": "dist/index.js",
 	"types": "dist/index.d.ts",
 	"dependencies": {
-		"@jazzer.js/core": "../core",
+		"@jazzer.js/core": "*",
 		"cosmiconfig": "^8.0.0",
 		"jest": "^29.4.2",
 		"istanbul-reports": "^3.1.5",
diff --git a/packages/jest-runner/worker.ts b/packages/jest-runner/worker.ts
index c4c8e947c..f67c340e1 100644
--- a/packages/jest-runner/worker.ts
+++ b/packages/jest-runner/worker.ts
@@ -24,9 +24,10 @@ import { jestExpect as expect } from "@jest/expect";
 import * as circus from "jest-circus";
 import { formatResultsErrors } from "jest-message-util";
 import { inspect } from "util";
-import { fuzz, FuzzerStartError, skip, FuzzTest } from "./fuzz";
+import { fuzz, FuzzerStartError, skip } from "./fuzz";
 import { cleanupJestRunnerStack, removeTopFramesFromError } from "./errorUtils";
 import { createScriptTransformer } from "@jest/transform";
+import "./jest-extension";
 
 function isGeneratorFunction(obj?: unknown): boolean {
 	return (
@@ -52,15 +53,6 @@ type JazzerTestResult = {
 	duration?: number;
 };
 
-declare global {
-	// eslint-disable-next-line @typescript-eslint/no-namespace
-	namespace jest {
-		interface It {
-			fuzz: FuzzTest;
-		}
-	}
-}
-
 export class JazzerWorker {
 	static #workerInitialized = false;
 	static #currentTestPath = "";

From 1276f7e0925bf0bc2336e80fcc92ec4a49b67d5e Mon Sep 17 00:00:00 2001
From: Brian Lewis <brian.lewis@code-intelligence.com>
Date: Tue, 14 Feb 2023 17:27:00 +0100
Subject: [PATCH 3/6] Fix copyright

---
 examples/jest_typescript_integration/target.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/examples/jest_typescript_integration/target.ts b/examples/jest_typescript_integration/target.ts
index 5b05dc7f8..df3eede86 100644
--- a/examples/jest_typescript_integration/target.ts
+++ b/examples/jest_typescript_integration/target.ts
@@ -1,5 +1,5 @@
 /*
- * Copyright 2022 Code Intelligence GmbH
+ * Copyright 2023 Code Intelligence GmbH
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.

From d4525b08a965e37368a5a6a1419b0687254b24ab Mon Sep 17 00:00:00 2001
From: Brian Lewis <brian.lewis@code-intelligence.com>
Date: Tue, 14 Feb 2023 17:32:15 +0100
Subject: [PATCH 4/6] Add .vscode to prettierignore

---
 .prettierignore | 1 +
 1 file changed, 1 insertion(+)

diff --git a/.prettierignore b/.prettierignore
index c4582fe53..7dd8e70cc 100644
--- a/.prettierignore
+++ b/.prettierignore
@@ -3,4 +3,5 @@ build
 coverage
 node_modules
 .idea
+.vscode
 compile_commands.json

From 5376a9c4a1680b59fcebd59507dc64d718301b94 Mon Sep 17 00:00:00 2001
From: Brian Lewis <brian.lewis@code-intelligence.com>
Date: Tue, 14 Feb 2023 17:35:46 +0100
Subject: [PATCH 5/6] Add type annotation to example

---
 examples/jest_typescript_integration/README.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/examples/jest_typescript_integration/README.md b/examples/jest_typescript_integration/README.md
index b808d0267..c98159f0d 100644
--- a/examples/jest_typescript_integration/README.md
+++ b/examples/jest_typescript_integration/README.md
@@ -58,7 +58,7 @@ Write a fuzz test like:
 // file: jazzerjs.fuzz.ts
 import "@jazzer.js/jest-runner/jest-extension";
 describe("My describe", () => {
-	it.fuzz("My fuzz test", (data) => {
+	it.fuzz("My fuzz test", (data: Buffer) => {
 		target.fuzzMe(data);
 	});
 });

From c71d2b115ca0515ce445e08aaae3951a57c36a16 Mon Sep 17 00:00:00 2001
From: Brian Lewis <brian.lewis@code-intelligence.com>
Date: Wed, 15 Feb 2023 15:28:23 +0100
Subject: [PATCH 6/6] Add examples used by the other jest test

This allows the tests to actually run something when not in fuzzing mode
---
 .../integration.fuzz/fuzz_testing_for_target/Async_timeout/seed  | 0
 .../fuzz_testing_for_target/Done_callback_timeout/seed           | 0
 .../fuzz_testing_for_target/My_async_fuzz_test/three             | 1 +
 .../fuzz_testing_for_target/My_callback_fuzz_test/two            | 1 +
 .../integration.fuzz/fuzz_testing_for_target/My_fuzz_test/one    | 1 +
 .../My_fuzz_test_with_an_explicit_timeout_(async)/test           | 1 +
 .../My_fuzz_test_with_an_explicit_timeout_(sync)/test            | 1 +
 .../integration.fuzz/fuzz_testing_for_target/Sync_timeout/seed   | 0
 8 files changed, 5 insertions(+)
 create mode 100644 examples/jest_typescript_integration/integration.fuzz/fuzz_testing_for_target/Async_timeout/seed
 create mode 100644 examples/jest_typescript_integration/integration.fuzz/fuzz_testing_for_target/Done_callback_timeout/seed
 create mode 100644 examples/jest_typescript_integration/integration.fuzz/fuzz_testing_for_target/My_async_fuzz_test/three
 create mode 100644 examples/jest_typescript_integration/integration.fuzz/fuzz_testing_for_target/My_callback_fuzz_test/two
 create mode 100644 examples/jest_typescript_integration/integration.fuzz/fuzz_testing_for_target/My_fuzz_test/one
 create mode 100644 examples/jest_typescript_integration/integration.fuzz/fuzz_testing_for_target/My_fuzz_test_with_an_explicit_timeout_(async)/test
 create mode 100644 examples/jest_typescript_integration/integration.fuzz/fuzz_testing_for_target/My_fuzz_test_with_an_explicit_timeout_(sync)/test
 create mode 100644 examples/jest_typescript_integration/integration.fuzz/fuzz_testing_for_target/Sync_timeout/seed

diff --git a/examples/jest_typescript_integration/integration.fuzz/fuzz_testing_for_target/Async_timeout/seed b/examples/jest_typescript_integration/integration.fuzz/fuzz_testing_for_target/Async_timeout/seed
new file mode 100644
index 000000000..e69de29bb
diff --git a/examples/jest_typescript_integration/integration.fuzz/fuzz_testing_for_target/Done_callback_timeout/seed b/examples/jest_typescript_integration/integration.fuzz/fuzz_testing_for_target/Done_callback_timeout/seed
new file mode 100644
index 000000000..e69de29bb
diff --git a/examples/jest_typescript_integration/integration.fuzz/fuzz_testing_for_target/My_async_fuzz_test/three b/examples/jest_typescript_integration/integration.fuzz/fuzz_testing_for_target/My_async_fuzz_test/three
new file mode 100644
index 000000000..2bdf67abb
--- /dev/null
+++ b/examples/jest_typescript_integration/integration.fuzz/fuzz_testing_for_target/My_async_fuzz_test/three
@@ -0,0 +1 @@
+three
diff --git a/examples/jest_typescript_integration/integration.fuzz/fuzz_testing_for_target/My_callback_fuzz_test/two b/examples/jest_typescript_integration/integration.fuzz/fuzz_testing_for_target/My_callback_fuzz_test/two
new file mode 100644
index 000000000..f719efd43
--- /dev/null
+++ b/examples/jest_typescript_integration/integration.fuzz/fuzz_testing_for_target/My_callback_fuzz_test/two
@@ -0,0 +1 @@
+two
diff --git a/examples/jest_typescript_integration/integration.fuzz/fuzz_testing_for_target/My_fuzz_test/one b/examples/jest_typescript_integration/integration.fuzz/fuzz_testing_for_target/My_fuzz_test/one
new file mode 100644
index 000000000..5626abf0f
--- /dev/null
+++ b/examples/jest_typescript_integration/integration.fuzz/fuzz_testing_for_target/My_fuzz_test/one
@@ -0,0 +1 @@
+one
diff --git a/examples/jest_typescript_integration/integration.fuzz/fuzz_testing_for_target/My_fuzz_test_with_an_explicit_timeout_(async)/test b/examples/jest_typescript_integration/integration.fuzz/fuzz_testing_for_target/My_fuzz_test_with_an_explicit_timeout_(async)/test
new file mode 100644
index 000000000..30d74d258
--- /dev/null
+++ b/examples/jest_typescript_integration/integration.fuzz/fuzz_testing_for_target/My_fuzz_test_with_an_explicit_timeout_(async)/test
@@ -0,0 +1 @@
+test
\ No newline at end of file
diff --git a/examples/jest_typescript_integration/integration.fuzz/fuzz_testing_for_target/My_fuzz_test_with_an_explicit_timeout_(sync)/test b/examples/jest_typescript_integration/integration.fuzz/fuzz_testing_for_target/My_fuzz_test_with_an_explicit_timeout_(sync)/test
new file mode 100644
index 000000000..30d74d258
--- /dev/null
+++ b/examples/jest_typescript_integration/integration.fuzz/fuzz_testing_for_target/My_fuzz_test_with_an_explicit_timeout_(sync)/test
@@ -0,0 +1 @@
+test
\ No newline at end of file
diff --git a/examples/jest_typescript_integration/integration.fuzz/fuzz_testing_for_target/Sync_timeout/seed b/examples/jest_typescript_integration/integration.fuzz/fuzz_testing_for_target/Sync_timeout/seed
new file mode 100644
index 000000000..e69de29bb