UPDATE: Dump of initial files

base/src/test/test_model_delete_cell.rs

@@ -0,0 +1,54 @@
+#![allow(clippy::unwrap_used)]
+use crate::test::util::new_empty_model;
+
+#[test]
+fn test_delete_cell_non_existing_sheet() {
+    let mut model = new_empty_model();
+    assert_eq!(
+        model.delete_cell(13, 1, 1),
+        Err("Invalid sheet index".to_string())
+    );
+}
+
+#[test]
+fn test_delete_cell_unset_cell() {
+    let mut model = new_empty_model();
+    assert!(model.delete_cell(0, 1, 1).is_ok());
+}
+
+#[test]
+fn test_delete_cell_with_value() {
+    let mut model = new_empty_model();
+    model._set("A1", "hello");
+    model.evaluate();
+
+    assert_eq!(model._get_text_at(0, 1, 1), "hello");
+    assert_eq!(model.is_empty_cell(0, 1, 1), Ok(false));
+
+    model.delete_cell(0, 1, 1).unwrap();
+    model.evaluate();
+
+    assert_eq!(model._get_text_at(0, 1, 1), "");
+    assert_eq!(model.is_empty_cell(0, 1, 1), Ok(true));
+}
+
+#[test]
+fn test_delete_cell_referenced_elsewhere() {
+    let mut model = new_empty_model();
+    model._set("A1", "35");
+    model._set("A2", "=2*A1");
+    model.evaluate();
+
+    assert_eq!(model._get_text_at(0, 1, 1), "35");
+    assert_eq!(model._get_text_at(0, 2, 1), "70");
+    assert_eq!(model.is_empty_cell(0, 1, 1), Ok(false));
+    assert_eq!(model.is_empty_cell(0, 2, 1), Ok(false));
+
+    model.delete_cell(0, 1, 1).unwrap();
+    model.evaluate();
+
+    assert_eq!(model._get_text_at(0, 1, 1), "");
+    assert_eq!(model._get_text_at(0, 2, 1), "0");
+    assert_eq!(model.is_empty_cell(0, 1, 1), Ok(true));
+    assert_eq!(model.is_empty_cell(0, 2, 1), Ok(false));
+}