package main

import "testing"

func TestValidateLogin(t *testing.T) {
	tests := []struct {
		name, email, password string
		wantErr               bool
	}{
		{"valid", "a@example.com", "secret", false},
		{"empty email", "", "secret", true},
		{"empty password", "a@example.com", "", true},
		{"both empty", "", "", true},
	}
	for _, tt := range tests {
		t.Run(tt.name, func(t *testing.T) {
			err := validateLogin(tt.email, tt.password)
			if (err != nil) != tt.wantErr {
				t.Errorf("validateLogin(%q, %q) error = %v, wantErr %v", tt.email, tt.password, err, tt.wantErr)
			}
		})
	}
}