Add unit tests for KotlinxIo functions and extensions

include-build/roborazzi-core/src/jvmTest/kotlin/io/github/takahirom/roborazzi/KotlinxIoTest.kt

@@ -0,0 +1,74 @@
+package io.github.takahirom.roborazzi
+
+import com.github.takahirom.roborazzi.KotlinxIo
+import com.github.takahirom.roborazzi.absolutePath
+import com.github.takahirom.roborazzi.nameWithoutExtension
+import com.github.takahirom.roborazzi.relativeTo
+import kotlinx.io.files.Path
+import org.junit.Assert.assertEquals
+import org.junit.Rule
+import org.junit.Test
+import org.junit.rules.TemporaryFolder
+
+class KotlinxIoTest {
+
+  @get:Rule
+  val tmpDir:TemporaryFolder = TemporaryFolder.builder().assureDeletion().build()
+
+  @Test
+  fun testAbsolutePath() {
+    val path = Path("/Users/roborazzi/file.txt")
+    assertEquals("/Users/roborazzi/file.txt", path.absolutePath)
+  }
+
+  @Test
+  fun testNameWithoutExtension() {
+    val path = Path("/Users/roborazzi/file.txt")
+    assertEquals("file", path.nameWithoutExtension)
+  }
+
+  @Test
+  fun testRelativeToSamePath() {
+    val path = Path("/Users/roborazzi/file.txt")
+    assertEquals(Path(""), path.relativeTo(path))
+  }
+
+  @Test
+  fun testRelativeToDifferentPath() {
+    val base = Path("/Users/roborazzi")
+    val path = Path("/Users/roborazzi/docs/file.txt")
+    assertEquals(Path("docs/file.txt"), path.relativeTo(base))
+  }
+
+  @Test
+  fun testRelativeToDifferentBase() {
+    val base = Path("/Users/roborazzi/docs")
+    val path = Path("/Users/roborazzi/music/file.mp3")
+    assertEquals(Path("../music/file.mp3"), path.relativeTo(base))
+  }
+
+  @Test
+  fun testReadText() {
+    val testFile = tmpDir.newFile("kotlinx_io_write_test.txt")
+    val expectedReadText = "Sample text for KotlinxIo"
+    testFile.writeText(expectedReadText)
+
+    val actualReadText = KotlinxIo.readText(Path(testFile.absolutePath))
+
+    assertEquals(expectedReadText, actualReadText)
+  }
+
+  @Test
+  fun testWriteText() {
+    val expectedWriteText = "Write a new text to the file"
+    val file = tmpDir.newFile("kotlinx_io_write_test.txt")
+
+    val path = Path(file.absolutePath)
+    KotlinxIo.writeText(path, expectedWriteText)
+
+    val actualReadText = KotlinxIo.readText(path)
+
+    assertEquals(expectedWriteText, actualReadText)
+  }
+
+}