From 201f2fa0ce1bda480a49c8fdf39989c10e5d6084 Mon Sep 17 00:00:00 2001
From: hugogogo <hugogogo@protonmail.com>
Date: Thu, 14 May 2026 13:42:25 +0200
Subject: [PATCH] add test for equal

---
 README.md   |  1 -
 src/lexer.c |  6 ++++++
 tester.sh   | 24 ++++++++++--------------
 3 files changed, 16 insertions(+), 15 deletions(-)

diff --git a/README.md b/README.md
index 558ee7e..9895bbd 100644
--- a/README.md
+++ b/README.md
@@ -3,7 +3,6 @@
 ## todo
 
 - if no "=" sign return error
-- doing gcd for int values, and not for double values
 - double is nearly_equal_0
 
 
diff --git a/src/lexer.c b/src/lexer.c
index 73ea0ba..1ce4413 100644
--- a/src/lexer.c
+++ b/src/lexer.c
@@ -220,7 +220,9 @@ void lexerize(const char *input, s_token *tokens)
     int tokens_count;
     int input_pos;
     int token_size;
+    bool has_equal;
 
+    has_equal = false;
     tokens_count = 0;
     input_pos = 0;
     while (input[input_pos])
@@ -288,6 +290,7 @@ void lexerize(const char *input, s_token *tokens)
         }
         else if (token_is_equal(input, input_pos, &token_size))
         {
+            has_equal = true;
             tokens[tokens_count].type = TOKEN_EQUAL;
             tokens[tokens_count].tag = TOKEN_NO_TAG;
             tokens[tokens_count].value_char = '=';
@@ -305,6 +308,9 @@ void lexerize(const char *input, s_token *tokens)
         input_pos += token_size;
     }
 
+    if (!has_equal)
+        stop_errors("the input polynomial does not contains an equal sign, it's an expression not an equation.\n");
+
     tokens[tokens_count].type = TOKEN_END;
     tokens[tokens_count].tag = TOKEN_NO_TAG;
     tokens[tokens_count].value_char = '\0';
diff --git a/tester.sh b/tester.sh
index 2309460..ba4f65f 100644
--- a/tester.sh
+++ b/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" \