diff --git a/base/src/test/mod.rs b/base/src/test/mod.rs
index d5775a6..c2fbbf2 100644
--- a/base/src/test/mod.rs
+++ b/base/src/test/mod.rs
@@ -38,6 +38,7 @@ mod test_sheet_markup;
 mod test_sheets;
 mod test_styles;
 mod test_trigonometric;
+mod test_workbook;
 mod test_worksheet;
 pub(crate) mod util;
 
@@ -47,6 +48,7 @@ mod test_number_format;
 
 mod test_escape_quotes;
 mod test_fn_type;
+mod test_frozen_rows_and_columns;
 mod test_get_cell_content;
 mod test_percentage;
 mod test_today;
diff --git a/base/src/test/test_frozen_rows_and_columns.rs b/base/src/test/test_frozen_rows_and_columns.rs
index c175362..be812c2 100644
--- a/base/src/test/test_frozen_rows_and_columns.rs
+++ b/base/src/test/test_frozen_rows_and_columns.rs
@@ -1,7 +1,9 @@
 #![allow(clippy::unwrap_used)]
 
-use crate::expressions::utils::{LAST_COLUMN, LAST_ROW};
-use crate::test::util::new_empty_model;
+use crate::{
+    constants::{LAST_COLUMN, LAST_ROW},
+    test::util::new_empty_model,
+};
 
 #[test]
 fn test_empty_model() {
diff --git a/base/src/test/test_workbook.rs b/base/src/test/test_workbook.rs
new file mode 100644
index 0000000..c6da4da
--- /dev/null
+++ b/base/src/test/test_workbook.rs
@@ -0,0 +1,18 @@
+#![allow(clippy::unwrap_used)]
+
+use crate::{test::util::new_empty_model, types::SheetInfo};
+
+#[test]
+fn workbook_worksheets_info() {
+    let model = new_empty_model();
+    let sheets_info = model.workbook.get_worksheets_info();
+    assert_eq!(
+        sheets_info[0],
+        SheetInfo {
+            name: "Sheet1".to_string(),
+            state: "visible".to_string(),
+            sheet_id: 1,
+            color: None
+        }
+    );
+}