UPDATE: Dump of initial files

base/src/test/test_today.rs

@@ -0,0 +1,50 @@
+#![allow(clippy::unwrap_used)]
+
+use crate::mock_time;
+use crate::model::Model;
+use crate::test::util::new_empty_model;
+
+// 14:44 20 Mar 2023 Berlin
+const TIMESTAMP_2023: i64 = 1679319865208;
+
+#[test]
+fn today_basic() {
+    let mut model = new_empty_model();
+    model._set("A1", "=TODAY()");
+    model._set("A2", "=TEXT(A1, \"yyyy/m/d\")");
+    model.evaluate();
+
+    assert_eq!(model._get_text("A1"), *"08/11/2022");
+    assert_eq!(model._get_text("A2"), *"2022/11/8");
+}
+
+#[test]
+fn today_with_wrong_tz() {
+    let model = Model::new_empty("model", "en", "Wrong Timezone");
+    assert!(model.is_err());
+}
+
+#[test]
+fn now_basic_utc() {
+    mock_time::set_mock_time(TIMESTAMP_2023);
+    let mut model = Model::new_empty("model", "en", "UTC").unwrap();
+    model._set("A1", "=TODAY()");
+    model._set("A2", "=NOW()");
+    model.evaluate();
+
+    assert_eq!(model._get_text("A1"), *"20/03/2023");
+    assert_eq!(model._get_text("A2"), *"45005.572511574");
+}
+
+#[test]
+fn now_basic_europe_berlin() {
+    mock_time::set_mock_time(TIMESTAMP_2023);
+    let mut model = Model::new_empty("model", "en", "Europe/Berlin").unwrap();
+    model._set("A1", "=TODAY()");
+    model._set("A2", "=NOW()");
+    model.evaluate();
+
+    assert_eq!(model._get_text("A1"), *"20/03/2023");
+    // This is UTC + 1 hour: 45005.572511574 + 1/24
+    assert_eq!(model._get_text("A2"), *"45005.614178241");
+}