UPDATE: Dump of initial files

base/src/test/test_criteria.rs

@@ -0,0 +1,86 @@
+use crate::calc_result::CalcResult;
+use crate::functions::util::build_criteria;
+
+// Tests for build_criteria
+// ------------------------
+//
+// Note that any test here is mostly for documentation purposes.
+// A real test must be done in Excel.
+//
+// `build_criteria` takes a string ('criteria') and returns a function ('fn_criteria') that takes a CalcResult and returns a boolean.
+//
+// For instance if criteria is "123" we want all cells that contain the number "123". Then
+//
+// let fn_criteria = build_criteria(&CalcResult::Number(123));
+//
+// Then fn_criteria(calc_result) will return true every time calc_result is the number "123"
+//
+// There are different types of criteria
+//
+// * We want the cells that are equal to a value (say a number, string, bool or an error).
+//   We can build those with a calc_result of the type (i.e CalcResult::Number(123))
+//   or we can use a string preceded by "=" like CalcResult::String("=123")
+// * We can use inequality signs "<", ">", "<=", ">=" or "<>"
+// * If you use "=" or "<>" you can use wildcards (like "=*brown")
+//
+// All of them are case insensitive.
+
+#[test]
+fn test_build_criteria_is_number() {
+    let c = CalcResult::Number(42.0);
+    let fn_criteria = build_criteria(&c);
+    assert!(fn_criteria(&CalcResult::Number(42.0)));
+    assert!(fn_criteria(&CalcResult::String("42".to_string())));
+    assert!(fn_criteria(&CalcResult::String("42.00".to_string())));
+    assert!(!fn_criteria(&CalcResult::Number(2.0)));
+
+    let c = CalcResult::String("=42".to_string());
+    let fn_criteria = build_criteria(&c);
+    assert!(fn_criteria(&CalcResult::Number(42.0)));
+    assert!(fn_criteria(&CalcResult::String("42".to_string())));
+    assert!(fn_criteria(&CalcResult::String("42.00".to_string())));
+    assert!(!fn_criteria(&CalcResult::Number(2.0)));
+}
+
+#[test]
+fn test_build_criteria_is_bool() {
+    let c = CalcResult::Boolean(true);
+    let fn_criteria = build_criteria(&c);
+    assert!(fn_criteria(&CalcResult::Boolean(true)));
+    assert!(!fn_criteria(&CalcResult::String("true".to_string())));
+    assert!(!fn_criteria(&CalcResult::Number(1.0)));
+
+    let c = CalcResult::String("=True".to_string());
+    let fn_criteria = build_criteria(&c);
+    assert!(fn_criteria(&CalcResult::Boolean(true)));
+    assert!(!fn_criteria(&CalcResult::String("true".to_string())));
+    assert!(!fn_criteria(&CalcResult::Number(1.0)));
+}
+
+#[test]
+fn test_build_criteria_is_less_than() {
+    let c = CalcResult::String("<100".to_string());
+    let fn_criteria = build_criteria(&c);
+    assert!(!fn_criteria(&CalcResult::Boolean(true)));
+    assert!(!fn_criteria(&CalcResult::String("23".to_string())));
+    assert!(fn_criteria(&CalcResult::Number(1.0)));
+    assert!(!fn_criteria(&CalcResult::Number(101.0)));
+}
+
+#[test]
+fn test_build_criteria_is_less_wildcard() {
+    let c = CalcResult::String("=D* G*".to_string());
+    let fn_criteria = build_criteria(&c);
+    assert!(fn_criteria(&CalcResult::String(
+        "Diarmuid Glynn".to_string()
+    )));
+    assert!(fn_criteria(&CalcResult::String(
+        "Daniel Gonzalez".to_string()
+    )));
+    assert!(!fn_criteria(&CalcResult::String(
+        "DanielGonzalez".to_string()
+    )));
+    assert!(!fn_criteria(&CalcResult::String(
+        " Daniel Gonzalez".to_string()
+    )));
+}