Test alignment (#16)

* update arm. num tests

* reorder beer-song tests

exercises/practice/armstrong-numbers/.meta/example.cairo

@@ -1,6 +1,6 @@
 use alexandria_math::armstrong_number;
 
-fn is_armstrong_number(num: u32) -> bool {
+fn is_armstrong_number(num: u128) -> bool {
     armstrong_number::is_armstrong_number(num.into())
 }
 

exercises/practice/armstrong-numbers/src/lib.cairo

@@ -1,4 +1,4 @@
-fn is_armstrong_number(num: u32) -> bool {
+fn is_armstrong_number(num: u128) -> bool {
     panic!("true if {num} is an armstrong number")
 }
 

exercises/practice/armstrong-numbers/src/tests.cairo

@@ -46,24 +46,11 @@ fn seven_digit_non_armstrong_number() {
 }
 
 #[test]
-fn nine_digit_armstrong_number() {
-    assert!(is_armstrong_number(912_985_153));
+fn armstrong_number_containing_seven_zeroes() {
+    assert!(is_armstrong_number(186_709_961_001_538_790_100_634_132_976_990));
 }
 
 #[test]
-fn nine_digit_non_armstrong_number() {
-    assert!(!is_armstrong_number(999_999_999));
-}
-
-#[test]
-fn ten_digit_non_armstrong_number() {
-    assert!(!is_armstrong_number(3_999_999_999));
-}
-
-// The following number has an Armstrong sum equal to 2^32 plus itself,
-// and therefore will be detected as an Armstrong number if you are
-// incorrectly using wrapping arithmetic.
-#[test]
-fn properly_handles_overflow() {
-    assert!(!is_armstrong_number(4_106_098_957));
+fn the_largest_and_last_armstrong_number() {
+    assert!(is_armstrong_number(115_132_219_018_763_992_565_095_597_973_971_522_401));
 }

exercises/practice/beer-song/src/tests.cairo

@@ -1,16 +1,16 @@
 #[test]
-fn verse_with_0_bottles() {
+fn first_generic_verse() {
     assert_eq!(
-        beer_song::verse(0),
-        "No more bottles of beer on the wall, no more bottles of beer.\nGo to the store and buy some more, 99 bottles of beer on the wall.\n"
+        beer_song::verse(99),
+        "99 bottles of beer on the wall, 99 bottles of beer.\nTake one down and pass it around, 98 bottles of beer on the wall.\n"
     );
 }
 
 #[test]
-fn verse_with_1_bottle() {
+fn last_generic_verse() {
     assert_eq!(
-        beer_song::verse(1),
-        "1 bottle of beer on the wall, 1 bottle of beer.\nTake it down and pass it around, no more bottles of beer on the wall.\n"
+        beer_song::verse(3),
+        "3 bottles of beer on the wall, 3 bottles of beer.\nTake one down and pass it around, 2 bottles of beer on the wall.\n"
     );
 }
 
@@ -23,18 +23,18 @@ fn verse_with_2_bottles() {
 }
 
 #[test]
-fn first_generic_verse() {
+fn verse_with_1_bottle() {
     assert_eq!(
-        beer_song::verse(99),
-        "99 bottles of beer on the wall, 99 bottles of beer.\nTake one down and pass it around, 98 bottles of beer on the wall.\n"
+        beer_song::verse(1),
+        "1 bottle of beer on the wall, 1 bottle of beer.\nTake it down and pass it around, no more bottles of beer on the wall.\n"
     );
 }
 
 #[test]
-fn last_generic_verse() {
+fn verse_with_0_bottles() {
     assert_eq!(
-        beer_song::verse(3),
-        "3 bottles of beer on the wall, 3 bottles of beer.\nTake one down and pass it around, 2 bottles of beer on the wall.\n"
+        beer_song::verse(0),
+        "No more bottles of beer on the wall, no more bottles of beer.\nGo to the store and buy some more, 99 bottles of beer on the wall.\n"
     );
 }