added code coverage for new errors

src/utils/errorHandler.test.tsx

@@ -21,6 +21,43 @@ describe('Test if errorHandler is working properly', () => {
     expect(toast.error).toHaveBeenCalledWith(tErrors('talawaApiUnavailable'));
   });
 
+  it('should call toast.error with the correct message if error message contains this substring "Value is not a valid phone number"', () => {
+    const error = new Error('This value is not a valid phone number');
+    errorHandler(t, error);
+
+    expect(toast.error).toHaveBeenCalledWith(tErrors('invalidPhoneNumber'));
+  });
+
+  it('should call toast.error with the correct message if error message contains this substring "Value does not exist in "EducationGrade""', () => {
+    const error = new Error('This value does not exist in "EducationGrade"');
+    errorHandler(t, error);
+
+    expect(toast.error).toHaveBeenCalledWith(tErrors('invalidEducationGrade'));
+  });
+
+  it('should call toast.error with the correct message if error message contains this substring "Value does not exist in "EmploymentStatus"', () => {
+    const error = new Error('This value does not exist in "EmploymentStatus"');
+    errorHandler(t, error);
+
+    expect(toast.error).toHaveBeenCalledWith(
+      tErrors('invalidEmploymentStatus'),
+    );
+  });
+
+  it('should call toast.error with the correct message if error message contains this substring "Value does not exist in "MaritalStatus"', () => {
+    const error = new Error('This value does not exist in "MaritalStatus"');
+    errorHandler(t, error);
+
+    expect(toast.error).toHaveBeenCalledWith(tErrors('invalidMaritalStatus'));
+  });
+
+  it('should call toast.error with the correct message if error message contains this substring "status code 400"', () => {
+    const error = new Error('Server responded with status code 400');
+    errorHandler(t, error);
+
+    expect(toast.error).toHaveBeenCalledWith(tErrors('error400'));
+  });
+
   it('should call toast.error with the error message if it is not "Failed to fetch"', () => {
     const error = new Error('Some other error message');
     errorHandler(t, error);