UPDATE: Dump of initial files

base/src/test/engineering/test_bessel.rs

@@ -0,0 +1,53 @@
+use crate::test::util::new_empty_model;
+
+#[test]
+fn fn_besseli() {
+    let mut model = new_empty_model();
+
+    model._set("B1", "=BESSELI()");
+    model._set("B2", "=BESSELI(1,2, 1)");
+
+    model.evaluate();
+
+    assert_eq!(model._get_text("B1"), *"#ERROR!");
+    assert_eq!(model._get_text("B2"), *"#ERROR!");
+}
+
+#[test]
+fn fn_besselj() {
+    let mut model = new_empty_model();
+
+    model._set("B1", "=BESSELJ()");
+    model._set("B2", "=BESSELJ(1,2, 1)");
+
+    model.evaluate();
+
+    assert_eq!(model._get_text("B1"), *"#ERROR!");
+    assert_eq!(model._get_text("B2"), *"#ERROR!");
+}
+
+#[test]
+fn fn_besselk() {
+    let mut model = new_empty_model();
+
+    model._set("B1", "=BESSELK()");
+    model._set("B2", "=BESSELK(1,2, 1)");
+
+    model.evaluate();
+
+    assert_eq!(model._get_text("B1"), *"#ERROR!");
+    assert_eq!(model._get_text("B2"), *"#ERROR!");
+}
+
+#[test]
+fn fn_bessely() {
+    let mut model = new_empty_model();
+
+    model._set("B1", "=BESSELY()");
+    model._set("B2", "=BESSELY(1,2, 1)");
+
+    model.evaluate();
+
+    assert_eq!(model._get_text("B1"), *"#ERROR!");
+    assert_eq!(model._get_text("B2"), *"#ERROR!");
+}