Add tests for resource saving method

lib/src/test/kotlin/foundation/esoteric/utility/resource/ResourceUtilityTest.kt

@@ -1,12 +1,20 @@
 package foundation.esoteric.utility.resource
 
+import org.apache.commons.io.FileUtils
 import org.junit.jupiter.api.assertThrows
+import java.io.File
 import java.nio.file.Path
 import kotlin.io.path.Path
-import kotlin.test.Test
-import kotlin.test.assertEquals
+import kotlin.test.*
 
 class ResourceUtilityTest {
+
+    private var run = File("run")
+
+    @BeforeTest fun createRunDirectory() {
+        run.mkdir()
+    }
+
     @Test fun resourcesListIsCorrect() {
         val resourcePaths = Path("resource").resourceFilePaths()
 
@@ -18,4 +26,19 @@ class ResourceUtilityTest {
             Path("some random path that does not exist").resourceFilePaths()
         }
     }
+
+    @Test fun savingResourcesWorks() {
+        val saveLocation = File(run, "Test File.txt")
+        val resourcePath = Path("resource/ResourceUtilityTest/Test File.txt")
+        resourcePath.saveResource(saveLocation.toPath())
+
+        assertTrue(saveLocation.exists())
+        assertTrue(saveLocation.isFile)
+        assertFalse(saveLocation.isDirectory)
+        assertEquals("This file is used to test the resource utility.", saveLocation.readText().trimEnd('\n', '\r'))
+    }
+
+    @AfterTest fun deleteRunDirectory() {
+        FileUtils.deleteDirectory(run)
+    }
 }