Support skip and only in Jest fuzzing mode

packages/jest-runner/testStateInterceptor.ts

@@ -59,11 +59,12 @@ export function interceptTestState(
 		} else if (event.name === "test_start") {
 			// In fuzzing mode, only execute the first encountered (not skipped) fuzz test
 			// and mark all others as skipped.
-			if (jazzerConfig.mode === "fuzzing") {
+			if (jazzerConfig.mode === "fuzzing" && event.test.mode !== "skip") {
 				if (
 					!firstFuzzTestEncountered &&
 					(!state.testNamePattern ||
-						state.testNamePattern.test(testName(event.test)))
+						(state.testNamePattern.test(testName(event.test)) &&
+							(!state.hasFocusedTests || event.test.mode === "only")))
 				) {
 					firstFuzzTestEncountered = true;
 				} else {

tests/jest_integration/integration.test.js

@@ -197,6 +197,30 @@ describe("Jest integration", () => {
 				);
 			});
 		});
+
+		describe("run modes", () => {
+			it.concurrent("only", () => {
+				const fuzzTest = new FuzzTestBuilder()
+					.dir(projectDir)
+					.jestTestName("Run mode only and standard")
+					.jestTestFile("run-mode-only.fuzz.js")
+					.jestRunInFuzzingMode(true)
+					.runs(1)
+					.build()
+					.execute();
+				expect(fuzzTest.stdout).toContain("only test called");
+			});
+
+			it("skipped", () => {
+				const fuzzTest = fuzzTestBuilder
+					.jestTestName("Run mode skip and standard")
+					.runs(1)
+					.logTestOutput()
+					.build()
+					.execute();
+				expect(fuzzTest.stdout).toContain("standard test called");
+			});
+		});
 	});
 
 	describe("Regression mode", () => {

tests/jest_integration/jest_project/integration.fuzz.js

@@ -95,12 +95,12 @@ describe("Jest Integration", () => {
 
 describe("Run mode", () => {
 	describe("skip and standard", () => {
-		it.fuzz("standard test", (data) => {
-			console.log("standard test called");
-		});
-
 		it.skip.fuzz("skipped test", (data) => {
 			throw new Error("Skipped test not skipped!");
 		});
+
+		it.fuzz("standard test", (data) => {
+			console.log("standard test called");
+		});
 	});
 });