test: verify initial file path positions cursor on file in parent directory

Author: lazysegtree

src/internal/model_test.go

@@ -95,6 +95,37 @@ func TestBasic(t *testing.T) {
 	})
 }
 
+func TestInitialFilePathPositionsCursor(t *testing.T) {
+	curTestDir := filepath.Join(testDir, "TestInitialFilePathPositionsCursor")
+	dir1 := filepath.Join(curTestDir, "dir1")
+	file1 := filepath.Join(dir1, "file1.txt")
+
+	utils.SetupDirectories(t, curTestDir, dir1)
+	utils.SetupFiles(t, file1)
+	t.Cleanup(func() { _ = os.RemoveAll(curTestDir) })
+
+	// Initialize model with a file path; cursor should land on that file
+	m := defaultTestModel(file1)
+
+	// Populate elements for the panel and apply target cursor
+	m.getFilePanelItems()
+
+	panel := m.getFocusedFilePanel()
+	require.Equal(t, dir1, panel.location, "Panel should open on parent directory")
+	require.NotEmpty(t, panel.element, "Panel elements should be populated")
+
+	// Find file in the element list and compare with cursor index
+	targetIdx := -1
+	for i, el := range panel.element {
+		if el.name == filepath.Base(file1) {
+			targetIdx = i
+			break
+		}
+	}
+	require.NotEqual(t, -1, targetIdx, "Target file must exist in panel elements")
+	assert.Equal(t, targetIdx, panel.cursor, "Cursor should point to the target file")
+}
+
 func TestQuit(t *testing.T) {
 	// Test
 	// 1 - Normal quit