Test create file & cleanup

src/test/kotlin/filesystem/FSCreatorTest.kt

@@ -1,9 +1,10 @@
 package filesystem
 
 import org.junit.jupiter.api.*
-import java.nio.file.Files
-import java.nio.file.Path
+import java.io.File
 import java.util.concurrent.TimeUnit
+import kotlin.io.path.Path
+import kotlin.io.path.createDirectory
 import kotlin.test.Test
 import kotlin.test.assertEquals
 
@@ -13,17 +14,26 @@ class FSCreatorTest {
     @BeforeEach
     fun `before each`() {
         assertDoesNotThrow("should create _tmp directory") {
-            Files.createDirectory(Path.of("_tmp"))
+            Path("_tmp").createDirectory()
         }
     }
 
     @AfterEach
     fun `after each`() {
         assertDoesNotThrow("should delete _tmp directory") {
-            deleteRecursive(Path.of("_tmp"))
+            File("_tmp").deleteRecursively()
         }
     }
 
+    @Test
+    fun `create file`() {
+        val file = FSFile("test.txt", "This is a file")
+        assertDoesNotThrow("should create file") {
+            creator.create(file, "_tmp")
+        }
+        assertEquals(file.content, File("_tmp/", file.name).readText())
+    }
+
     @Test
     fun `create entries`() {
         val readme = FSFile("README", "Hello World!")
@@ -61,10 +71,10 @@ class FSCreatorTest {
         }
         // If objects don't exist, these functions will throw anyway, so don't explicitly check for existence.
         // Similarly, don't explicitly check if an object is a directory.
-        assertEquals(readme.content, Files.readString(Path.of("_tmp/folder", readme.name)))
-        assertEquals(gomod.content, Files.readString(Path.of("_tmp/folder", gomod.name)))
-        assertEquals(maingo.content, Files.readString(Path.of("_tmp/folder", maingo.name)))
-        assertEquals(helloworldgo.content, Files.readString(Path.of("_tmp/folder/utils", helloworldgo.name)))
+        assertEquals(readme.content, File("_tmp/folder", readme.name).readText())
+        assertEquals(gomod.content, File("_tmp/folder", gomod.name).readText())
+        assertEquals(maingo.content, File("_tmp/folder", maingo.name).readText())
+        assertEquals(helloworldgo.content, File("_tmp/folder/utils", helloworldgo.name).readText())
     }
 
     @Test
@@ -111,11 +121,11 @@ class FSCreatorTest {
                 "_tmp",
             )
         }
-        assertEquals("hi", Files.readString(Path.of("_tmp/folder/sub-folder/hi")))
-        assertEquals("P4ssW0rd", Files.readString(Path.of("_tmp/folder/folder/secrets/secret")))
-        assertEquals("One is a good number", Files.readString(Path.of("_tmp/folder/1.txt")))
-        assertEquals("Two!", Files.readString(Path.of("_tmp/folder/2.txt")))
-        assertEquals("Three!", Files.readString(Path.of("_tmp/folder/3.txt")))
+        assertEquals("hi", File("_tmp/folder/sub-folder/hi").readText())
+        assertEquals("P4ssW0rd", File("_tmp/folder/folder/secrets/secret").readText())
+        assertEquals("One is a good number", File("_tmp/folder/1.txt").readText())
+        assertEquals("Two!", File("_tmp/folder/2.txt").readText())
+        assertEquals("Three!", File("_tmp/folder/3.txt").readText())
     }
 
     @Test
@@ -142,13 +152,4 @@ class FSCreatorTest {
             creator.create(folder4, "_tmp")
         }
     }
-}
-
-fun deleteRecursive(path: Path) {
-    if (Files.isDirectory(path)) {
-        for (child in Files.list(path)) {
-            deleteRecursive(child)
-        }
-    }
-    Files.delete(path)
 }