Update: test isProperFraction function to include comprehensive checks for numerator and denominator, ensuring proper fraction validation

Author: SuWebOnes

Sprint-3/2-mandatory-rewrite/2-is-proper-fraction.js

@@ -1,6 +1,19 @@
 function isProperFraction(numerator, denominator) {
-    if (numerator < denominator) return true;
-    // add your completed function from key-implement here
+  if (denominator === 0) return false; // Avoid division by zero
+  if (numerator < 0 || denominator < 0) return false; // Proper fractions are positive
+  if (numerator < denominator) return true; // Proper if numerator < denominator
+  return false; // Otherwise, it's improper
 }
 
-module.exports = isProperFraction;
+module.exports = isProperFraction;
+// Test cases for the isProperFraction function
+console.log(isProperFraction(1, 2)); // true
+console.log(isProperFraction(3, 4)); // true
+console.log(isProperFraction(5, 5)); // false
+console.log(isProperFraction(7, 6)); // false
+console.log(isProperFraction(0, 1)); // true
+console.log(isProperFraction(1, 0)); // false (denominator is zero)
+console.log(isProperFraction(-1, 2)); // false (negative numerator)
+console.log(isProperFraction(1, -2)); // false (negative denominator)
+console.log(isProperFraction(-1, -2)); // false (both negative)
+console.log(isProperFraction(2, 3)); // true