refactor: added helper method & enabled middleName testcase for 'uk' locale

Author: ganeshbudhathoki

src/name.ts

@@ -35,14 +35,7 @@ export class Name {
       // some locale datasets ( like ru ) have first_name split by gender. since the name.first_name field does not exist in these datasets,
       // we must randomly pick a name from either gender array so faker.name.firstName will return the correct locale data ( and not fallback )
 
-      if (typeof gender === 'string') {
-        if (gender.toLowerCase() === 'male') {
-          gender = 0;
-        } else if (gender.toLowerCase() === 'female') {
-          gender = 1;
-        }
-      }
-
+      gender = Name.determineGenderByStringParam(gender);
       if (typeof gender !== 'number') {
         if (typeof this.faker.definitions.name.first_name === 'undefined') {
           gender = this.faker.datatype.number(1);
@@ -126,14 +119,7 @@ export class Name {
       typeof this.faker.definitions.name.male_middle_name !== 'undefined' &&
       typeof this.faker.definitions.name.female_middle_name !== 'undefined'
     ) {
-      if (typeof gender === 'string') {
-        if (gender.toLowerCase() === 'male') {
-          gender = 0;
-        } else if (gender.toLowerCase() === 'female') {
-          gender = 1;
-        }
-      }
-
+      gender = Name.determineGenderByStringParam(gender);
       if (typeof gender !== 'number') {
         if (typeof this.faker.definitions.name.middle_name === 'undefined') {
           gender = this.faker.datatype.number(1);
@@ -346,4 +332,26 @@ export class Name {
       this.faker.definitions.name.title.job
     );
   }
+
+  /**
+   *
+   * Determines gender in 0 or 1
+   *
+   * @param gender The optional gender to use.
+   *
+   * @returns 0 or 1 given a string param of 'male' or 'female' else returns default value
+   *
+   * @example Name.determineGenderByStringParam('male') // 0
+   *
+   */
+  private static determineGenderByStringParam(gender: string | number) {
+    if (typeof gender === 'string') {
+      if (gender.toLowerCase() === 'male') {
+        gender = 0;
+      } else if (gender.toLowerCase() === 'female') {
+        gender = 1;
+      }
+    }
+    return gender;
+  }
 }

test/name.spec.ts

@@ -267,18 +267,14 @@ describe('name', () => {
           expect(faker.definitions.name.female_middle_name).toContain(name);
         });
 
-        // TODO @Shinigami92 2022-01-30: There is a bug: https://github.com/faker-js/faker/issues/373
-        it.todo(
-          'should return a gender-specific middle name when passed a string',
-          () => {
-            faker.locale = 'uk';
+        it('should return a gender-specific middle name when passed a string', () => {
+          faker.locale = 'uk';
 
-            let name = faker.name.middleName('male');
-            expect(faker.definitions.name.male_middle_name).toContain(name);
-            name = faker.name.middleName('female');
-            expect(faker.definitions.name.female_middle_name).toContain(name);
-          }
-        );
+          let name = faker.name.middleName('male');
+          expect(faker.definitions.name.male_middle_name).toContain(name);
+          name = faker.name.middleName('female');
+          expect(faker.definitions.name.female_middle_name).toContain(name);
+        });
       });
 
       describe('findName()', () => {