add test for equal

tester.sh

@@ -73,12 +73,10 @@ run_test() {
         fi
     fi
 
-
-
     # If check_error is true, verify if the output contains an error message or non-zero exit code
     if [[ "$check_error" == "error" ]]; then
         if [[ $exit_code -ne 0 || "$out" == *"Error"* ]]; then
-            printf $B_GREEN"PASS$RESET\n"
+            printf $B_GREEN"PASS$RESET (Input: '%s')\n" "$input"
         else
             printf $B_RED"FAIL$RESET\n"
             printf "  "$B_WHITE"Input:$RESET '%s'\n" "$input"
@@ -90,7 +88,7 @@ run_test() {
     else
         # Compare with expected output
         if [[ "$out" == "$expected" ]]; then
-            printf $B_GREEN"PASS$RESET\n"
+            printf $B_GREEN"PASS$RESET (Input: '%s')\n" "$input"
         else
             printf $B_RED"FAIL$RESET\n"
             printf "  "$B_WHITE"Input:$RESET '%s'\n" "$input"
@@ -136,8 +134,8 @@ Discriminant is strictly positive, the two solutions are:
 
 run_test \
 "4. flag -e" \
-'-e "3 * x^2 + 2 * x - 7 * x^4 = 1 * x^4"' "\
-" \
+'-e "3 * x^2 + 2 * x - 7 * x^4 = 1 * x^4"' \
+"" \
 error
 
 run_test \
@@ -160,8 +158,8 @@ Discriminant is strictly negative, the two complex solutions are:
 
 run_test \
 "7. float exponent" \
-"3.4 * x^2 + 1 * x^1 - 2.0 * x^0 = 5 * x^1.2" "\
-" \
+"3.4 * x^2 + 1 * x^1 - 2.0 * x^0 = 5 * x^1.2" \
+"" \
 error
 
 run_test \
@@ -280,12 +278,10 @@ The solution is:
 0.75"
 
 run_test \
-"23. degree 2" \
-"3x^2" "\
-Reduced form: 0 * x^0 + 0 * x^1 + 3 * x^2 = 0
-Polynomial degree: 2
-Discriminant is equal to zero, the solution is:
-0"
+"23. degree 2 without [=]" \
+"3x^2" \
+"" \
+error
 
 run_test \
 "24. degree 2" \