test: add row count with header

czv-wasm/tests/count.rs

@@ -6,7 +6,7 @@ wasm_bindgen_test::wasm_bindgen_test_configure!(run_in_browser);
 
 #[test]
 #[wasm_bindgen_test]
-fn basic() -> Result<()> {
+fn row_count_nonheader() -> Result<()> {
     let options = RowCountOptions {
         file_data: "fruit,price
 apple,2.00
@@ -19,3 +19,19 @@ strawberry,3.00"
     assert_eq!(result, 3);
     Ok(())
 }
+
+#[test]
+#[wasm_bindgen_test]
+fn row_count_header() -> Result<()> {
+    let options = RowCountOptions {
+        file_data: "fruit,price
+apple,2.00
+banana,1.50
+strawberry,3.00"
+            .to_string(),
+        include_header_row: Some(true),
+    };
+    let result = czv_wasm::count::row_count(options)?;
+    assert_eq!(result, 4);
+    Ok(())
+}