Implement UNICODE function

base/src/test/mod.rs

@@ -24,6 +24,7 @@ mod test_fn_sum;
 mod test_fn_sumifs;
 mod test_fn_textbefore;
 mod test_fn_textjoin;
+mod test_fn_unicode;
 mod test_forward_references;
 mod test_frozen_rows_columns;
 mod test_general;

base/src/test/test_fn_unicode.rs

@@ -0,0 +1,41 @@
+#![allow(clippy::unwrap_used)]
+
+use crate::test::util::new_empty_model;
+
+#[test]
+fn simple_cases() {
+    let mut model = new_empty_model();
+    model._set("A1", "=UNICODE(\"1,00\")");
+    model._set("A2", "=UNICODE(\"1\")");
+    model._set("A3", "=UNICODE(\"T\")");
+    model._set("A4", "=UNICODE(\"TRUE\")");
+    model._set("A5", "=UNICODE(\"の\")");
+    model._set("A6", "=UNICODE(\" \")");
+
+    model.evaluate();
+
+    assert_eq!(model._get_text("A1"), *"49");
+    assert_eq!(model._get_text("A2"), *"49");
+    assert_eq!(model._get_text("A3"), *"84");
+    assert_eq!(model._get_text("A4"), *"84");
+    assert_eq!(model._get_text("A5"), *"12398");
+    assert_eq!(model._get_text("A6"), *"32");
+}
+
+#[test]
+fn value_errors() {
+    let mut model = new_empty_model();
+    model._set("A1", "=UNICODE(\"\")");
+    model.evaluate();
+
+    assert_eq!(model._get_text("A1"), *"#VALUE!");
+}
+
+#[test]
+fn wrong_number_of_arguments() {
+    let mut model = new_empty_model();
+    model._set("A1", "=UNICODE()");
+    model.evaluate();
+
+    assert_eq!(model._get_text("A1"), *"#ERROR!");
+}