lyng/lynglib/src/commonTest/kotlin/MIVisibilityTest.kt

76 lines
2.3 KiB
Kotlin

/*
* Copyright 2025 Sergey S. Chernov real.sergeych@gmail.com
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
import kotlinx.coroutines.test.runTest
import net.sergeych.lyng.eval
import kotlin.test.Test
import kotlin.test.assertFails
class MIVisibilityTest {
@Test
fun privateMethodNotVisibleInSubclass() = runTest {
val code = """
class Foo() {
private fun secret() { "S" }
}
class Bar() : Foo() {
fun trySecret() { this@Foo.secret() }
}
val b = Bar()
// calling a wrapper that tries to access Foo.secret must fail
b.trySecret()
""".trimIndent()
assertFails { eval(code) }
}
@Test
fun protectedMethodNotVisibleFromUnrelatedEvenViaCast() = runTest {
val code = """
class Foo() { protected fun prot() { "P" } }
class Bar() : Foo() { }
val b = Bar()
// Unrelated context tries to call through cast — should fail
(b as Foo).prot()
""".trimIndent()
assertFails { eval(code) }
}
@Test
fun privateFieldNotVisibleInSubclass() = runTest {
val code = """
class Foo() { private val x = "X" }
class Bar() : Foo() { fun getX() { this@Foo.x } }
val b = Bar()
b.getX()
""".trimIndent()
assertFails { eval(code) }
}
@Test
fun protectedFieldNotVisibleFromUnrelatedEvenViaCast() = runTest {
// Not allowed from unrelated, even via cast
val code = """
class Foo() { protected val y = "Y" }
class Bar() : Foo() { }
val b = Bar()
(b as Foo).y
""".trimIndent()
assertFails { eval(code) }
}
}