Fix test (#6923)

* Fix test

* chore: add changeset

* chore: the actual fix

* fix: add extra line in test

* chore: hide eslint rule from output as it's too noisy

.changeset/blue-lies-juggle.md

@@ -0,0 +1,5 @@
+---
+"wrangler": patch
+---
+
+chore: adds eslint-disable for ESLint error on empty typescript interface in workers-configuration.d.ts

packages/wrangler/src/__tests__/type-generation.test.ts

@@ -444,8 +444,9 @@ describe("generateTypes()", () => {
 			);
 
 			await runWrangler("types");
-			expect(fs.readFileSync("./worker-configuration.d.ts", "utf-8")).toMatch(
-				/interface Env \{\s*\}/
+
+			expect(fs.readFileSync("./worker-configuration.d.ts", "utf-8")).toContain(
+				`// eslint-disable-next-line @typescript-eslint/no-empty-interface,@typescript-eslint/no-empty-object-type\ninterface Env {\n}`
 			);
 			expect(std.out).toMatchInlineSnapshot(`
 			"Generating project types...

packages/wrangler/src/type-generation/index.ts

@@ -488,34 +488,58 @@ function writeDTSFile({
 		}
 	}
 
-	let combinedTypeStrings = "";
-	if (formatType === "modules") {
-		combinedTypeStrings += `interface ${envInterface} {${envTypeStructure
-			.map((value) => `\n\t${value}`)
-			.join("")}\n}\n${modulesTypeStructure.join("\n")}`;
-	} else {
-		combinedTypeStrings += `export {};\ndeclare global {\n${envTypeStructure
-			.map((value) => `\tconst ${value}`)
-			.join("\n")}\n}\n${modulesTypeStructure.join("\n")}`;
-	}
-
 	const wranglerCommandUsed = ["wrangler", ...process.argv.slice(2)].join(" ");
 
 	const typesHaveBeenFound =
 		envTypeStructure.length || modulesTypeStructure.length;
 
 	if (formatType === "modules" || typesHaveBeenFound) {
+		const { fileContent, consoleOutput } = generateTypeStrings(
+			formatType,
+			envInterface,
+			envTypeStructure,
+			modulesTypeStructure
+		);
+
 		fs.writeFileSync(
 			path,
 			[
 				`// Generated by Wrangler by running \`${wranglerCommandUsed}\``,
 				"",
-				combinedTypeStrings,
+				fileContent,
 			].join("\n")
 		);
+
 		logger.log(`Generating project types...\n`);
-		logger.log(combinedTypeStrings);
+		logger.log(consoleOutput);
+	}
+}
+
+function generateTypeStrings(
+	formatType: string,
+	envInterface: string,
+	envTypeStructure: string[],
+	modulesTypeStructure: string[]
+): { fileContent: string; consoleOutput: string } {
+	let baseContent = "";
+	let eslintDisable = "";
+
+	if (formatType === "modules") {
+		if (envTypeStructure.length === 0) {
+			eslintDisable =
+				"// eslint-disable-next-line @typescript-eslint/no-empty-interface,@typescript-eslint/no-empty-object-type\n";
+		}
+		baseContent = `interface ${envInterface} {${envTypeStructure.map((value) => `\n\t${value}`).join("")}\n}`;
+	} else {
+		baseContent = `export {};\ndeclare global {\n${envTypeStructure.map((value) => `\tconst ${value}`).join("\n")}\n}`;
 	}
+
+	const modulesContent = modulesTypeStructure.join("\n");
+
+	return {
+		fileContent: `${eslintDisable}${baseContent}\n${modulesContent}`,
+		consoleOutput: `${baseContent}\n${modulesContent}`,
+	};
 }
 
 /**