Remove PlatformComparisonTest

Author: cketti

build.gradle.kts

@@ -28,9 +28,6 @@ kotlin {
         compilations.all {
             kotlinOptions.jvmTarget = "1.8"
         }
-        testRuns["test"].executionTask.configure {
-            useJUnitPlatform()
-        }
     }
 
     linuxArm64()
@@ -67,10 +64,6 @@ kotlin {
         val commonImplementation by creating {
             dependsOn(commonMain)
         }
-
-        val jvmTest by getting {
-            dependsOn(commonImplementation)
-        }
     }
 
     targets.onEach {

src/commonTest/kotlin/StringExtensionsTest.kt

@@ -2,6 +2,7 @@ package de.cketti.codepoints
 
 import kotlin.test.assertEquals
 import kotlin.test.Test
+import kotlin.test.assertFailsWith
 
 class StringExtensionsTest {
     @Test
@@ -120,4 +121,34 @@ class StringExtensionsTest {
         assertEquals(0, "\uD83E\uDD95\uD83E\uDD96".offsetByCodePoints(index = 3, codePointOffset = -2))
         assertEquals(0, "\uD83E\uDD95\uD83E\uDD96".offsetByCodePoints(index = 1, codePointOffset = -1))
     }
+
+    @Test
+    fun offsetByCodePoints_with_invalid_index() {
+        assertFailsWith<IndexOutOfBoundsException> {
+            "a".offsetByCodePoints(index = -1, codePointOffset = 0)
+        }
+
+        assertFailsWith<IndexOutOfBoundsException> {
+            "a".offsetByCodePoints(index = 2, codePointOffset = 0)
+        }
+    }
+
+    @Test
+    fun offsetByCodePoints_with_invalid_codePointOffset() {
+        assertFailsWith<IndexOutOfBoundsException> {
+            "a".offsetByCodePoints(index = 0, codePointOffset = 2)
+        }
+
+        assertFailsWith<IndexOutOfBoundsException> {
+            "a".offsetByCodePoints(index = 1, codePointOffset = -2)
+        }
+
+        assertFailsWith<IndexOutOfBoundsException> {
+            "\uD83E\uDD95".offsetByCodePoints(index = 0, codePointOffset = 2)
+        }
+
+        assertFailsWith<IndexOutOfBoundsException> {
+            "\uD83E\uDD95".offsetByCodePoints(index = 2, codePointOffset = -2)
+        }
+    }
 }