Create TempDirectoryTest.java

app/common/src/test/java/stirling/software/common/util/TempDirectoryTest.java

@@ -0,0 +1,96 @@
+package stirling.software.common.util;
+
+import static org.junit.jupiter.api.Assertions.*;
+import static org.mockito.Mockito.*;
+
+import java.io.IOException;
+import java.nio.file.Files;
+import java.nio.file.Path;
+
+import org.junit.jupiter.api.DisplayName;
+import org.junit.jupiter.api.Test;
+import org.mockito.ArgumentCaptor;
+
+/**
+ * Unit tests for {@link TempDirectory}. Assumption: TempFileManager has methods
+ * createTempDirectory() and deleteTempDirectory(Path).
+ */
+class TempDirectoryTest {
+
+    @Test
+    @DisplayName("should create temp directory and return correct path info")
+    void shouldReturnCorrectPathInfo() throws IOException {
+        TempFileManager manager = mock(TempFileManager.class);
+        Path tempPath = Files.createTempDirectory("testDir");
+        when(manager.createTempDirectory()).thenReturn(tempPath);
+
+        try (TempDirectory tempDir = new TempDirectory(manager)) {
+            assertEquals(
+                    tempPath,
+                    tempDir.getPath(),
+                    "getPath should return the created directory path");
+            assertEquals(
+                    tempPath.toAbsolutePath().toString(),
+                    tempDir.getAbsolutePath(),
+                    "getAbsolutePath should return absolute path");
+            assertTrue(tempDir.exists(), "exists should return true when directory exists");
+            assertTrue(
+                    tempDir.toString().contains(tempPath.toAbsolutePath().toString()),
+                    "toString should include the absolute path");
+        }
+    }
+
+    @Test
+    @DisplayName("should call deleteTempDirectory on close")
+    void shouldDeleteTempDirectoryOnClose() throws IOException {
+        TempFileManager manager = mock(TempFileManager.class);
+        Path tempPath = Files.createTempDirectory("testDir");
+        when(manager.createTempDirectory()).thenReturn(tempPath);
+
+        try (TempDirectory tempDir = new TempDirectory(manager)) {
+            // do nothing
+        }
+
+        ArgumentCaptor<Path> captor = ArgumentCaptor.forClass(Path.class);
+        verify(manager, times(1)).deleteTempDirectory(captor.capture());
+        assertEquals(
+                tempPath,
+                captor.getValue(),
+                "deleteTempDirectory should be called with the created path");
+    }
+
+    @Test
+    @DisplayName("should handle multiple close calls without exception")
+    void shouldHandleMultipleCloseCalls() throws IOException {
+        TempFileManager manager = mock(TempFileManager.class);
+        Path tempPath = Files.createTempDirectory("testDir");
+        when(manager.createTempDirectory()).thenReturn(tempPath);
+
+        TempDirectory tempDir = new TempDirectory(manager);
+        tempDir.close();
+        assertDoesNotThrow(tempDir::close, "Second close should not throw exception");
+    }
+
+    @Test
+    @DisplayName("should return false for exists if directory does not exist")
+    void shouldReturnFalseIfDirectoryDoesNotExist() throws IOException {
+        TempFileManager manager = mock(TempFileManager.class);
+        Path tempPath = Files.createTempDirectory("testDir");
+        Files.delete(tempPath); // delete immediately
+        when(manager.createTempDirectory()).thenReturn(tempPath);
+
+        try (TempDirectory tempDir = new TempDirectory(manager)) {
+            assertFalse(tempDir.exists(), "exists should return false when directory is missing");
+        }
+    }
+
+    @Test
+    @DisplayName("should throw IOException if createTempDirectory fails")
+    void shouldThrowIfCreateTempDirectoryFails() throws IOException {
+        TempFileManager manager = mock(TempFileManager.class);
+        when(manager.createTempDirectory()).thenThrow(new IOException("Disk full"));
+
+        IOException ex = assertThrows(IOException.class, () -> new TempDirectory(manager));
+        assertEquals("Disk full", ex.getMessage(), "Exception message should be propagated");
+    }
+}