Added more tests for #22180

tests/cases/fourslash/codeFixUndeclaredMethodFunctionArgs.ts

@@ -0,0 +1,31 @@
+/// <reference path='fourslash.ts' />
+
+//// class A {[|
+////     |]constructor() {
+////         this.foo1(() => 1, () => "2", () => false);
+////         this.foo2((a: number) => a, (b: string) => b, (c: boolean) => c);
+////     }
+//// }
+
+verify.codeFix({
+    description: "Declare method 'foo1'",
+    index: 0,
+    newRangeContent: `
+    foo1(arg0: () => number, arg1: () => string, arg2: () => boolean): any {
+        throw new Error("Method not implemented.");
+    }
+    `,
+});
+
+verify.codeFix({
+    description: "Declare method 'foo2'",
+    index: 0,
+    newRangeContent: `
+    foo2(arg0: (a: number) => number, arg1: (b: string) => string, arg2: (c: boolean) => boolean): any {
+        throw new Error("Method not implemented.");
+    }
+    foo1(arg0: () => number, arg1: () => string, arg2: () => boolean): any {
+        throw new Error("Method not implemented.");
+    }
+    `
+});

tests/cases/fourslash/codeFixUndeclaredMethodObjectLiteralArgs.ts

@@ -0,0 +1,17 @@
+/// <reference path='fourslash.ts' />
+
+//// class A {[|
+////     |]constructor() {
+////         this.foo1(null, {}, { a: 1, b: "2"});
+////     }
+//// }
+
+verify.codeFix({
+    description: "Declare method 'foo1'",
+    index: 0,
+    newRangeContent: `
+    foo1(arg0: null, arg1: {}, arg2: { a: number; b: string; }): any {
+        throw new Error("Method not implemented.");
+    }
+    `
+});