fix: generating space-before-function-paren (#147)

Author: dimabory

.gitignore

@@ -1,3 +1,4 @@
+.idea
 *.tsbuildinfo
 *.d.ts
 *.log

src/rules/converters/space-before-function-paren.ts

@@ -1,11 +1,15 @@
 import { RuleConverter } from "../converter";
 
+function isExistedESLintOption(rule: string) {
+    return ["anonymous", "named", "asyncArrow"].includes(rule);
+}
+
 export const convertSpaceBeforeFunctionParen: RuleConverter = tslintRule => {
     return {
         rules: [
             {
                 ...(tslintRule.ruleArguments.length !== 0 && {
-                    ruleArguments: tslintRule.ruleArguments,
+                    ruleArguments: tslintRule.ruleArguments.filter(isExistedESLintOption),
                 }),
                 ruleName: "space-before-function-paren",
             },

src/rules/converters/tests/space-before-function-paren.test.ts

@@ -29,4 +29,19 @@ describe(convertSpaceBeforeFunctionParen, () => {
             ],
         });
     });
+
+    test("conversion with all existing arguments", () => {
+        const result = convertSpaceBeforeFunctionParen({
+            ruleArguments: ["anonymous", "named", "asyncArrow", "method", "constructor"],
+        });
+
+        expect(result).toEqual({
+            rules: [
+                {
+                    ruleArguments: ["anonymous", "named", "asyncArrow"],
+                    ruleName: "space-before-function-paren",
+                },
+            ],
+        });
+    });
 });