Duration to String enhanced with tests

Adds checks for if a bit in a u8 is set or clear

tests/data_to_text.rs

@@ -8,7 +8,6 @@ fn read_bin(source: &str) -> Vec<u8> {
 
 fn read_display(source: &str) -> String {
     let full_path = format!("/home/tmerritt/Projects/trevors_utilities/resources/data_to_text/{}.display", source);
-    // println!("FULL PATH DIS: [{}]", full_path);
     std::fs::read_to_string(full_path).unwrap()
 }
 

tests/number_system_conversion.rs

@@ -147,4 +147,34 @@ fn clear_low_bits() {
             NumberSystemConversion::clear_low_bits(src),
             dst);
     }
-}
+}
+
+#[test]
+fn is_bit_set_checks() {
+    let params = vec![
+        (0b0000_0001, vec![true, false, false, false, false, false, false, false]),
+        (0b1111_1111, vec![true, true, true, true, true, true, true, true]),
+        (0b1010_1010, vec![false, true, false, true, false, true, false, true])
+    ];
+
+    for (base, options) in params {
+        for (index, expected) in options.iter().enumerate() {
+            assert_eq!(*expected, NumberSystemConversion::is_bit_set(base, index as u8));
+        }
+    }
+}
+
+#[test]
+fn is_bit_clear_checks() {
+    let params = vec![
+        (0b0000_0001, vec![false, true, true, true, true, true, true, true]),
+        (0b1111_1111, vec![false, false, false, false, false, false, false, false]),
+        (0b1010_1010, vec![true, false, true, false, true, false, true, false])
+    ];
+
+    for (base, options) in params {
+        for (index, expected) in options.iter().enumerate() {
+            assert_eq!(*expected, NumberSystemConversion::is_bit_clear(base, index as u8));
+        }
+    }
+}