fix(test): Code review update

import io.mockk.mockk

import org.junit.Assert.assertEquals

import org.junit.Assert.assertNotEquals

import org.junit.Assert.assertTrue

import org.junit.Test

import java.util.Locale

        // Verify it only contains hex characters

        val hexRegex = Regex("^[0-9a-fA-F]+$")

        assert(id.matches(hexRegex)) { "ID should be a valid hexadecimal string" }

        assertTrue(id.matches(hexRegex))

    }

    @Test