如何使用kotlin和junit用MockK模拟HashMap？

import io.mockk.every
import io.mockk.mockk
import org.junit.Assert.assertEquals
import org.junit.Test

class HashMapTest {
    @Test
    fun testHashMapMocking() {
        // 测试代码
    }
}

class HashMapTest {
    @Test
    fun testHashMapMocking() {
        val mockHashMap = mockk<HashMap<String, String>>()

        every { mockHashMap.getOrDefault("key1", any()) } returns "value1"
        every { mockHashMap.getOrDefault("key2", any()) } returns "value2"

        // 测试代码
    }
}

class HashMapTest {
    @Test
    fun testHashMapMocking() {
        val mockHashMap = mockk<HashMap<String, String>>()

        every { mockHashMap.getOrDefault("key1", any()) } returns "value1"
        every { mockHashMap.getOrDefault("key2", any()) } returns "value2"

        assertEquals("value1", mockHashMap.getOrDefault("key1", "default"))
        assertEquals("value2", mockHashMap.getOrDefault("key2", "default"))
        assertEquals("default", mockHashMap.getOrDefault("key3", "default"))
    }
}