philosophers_prep/testers/test_1_thread_basics.sh

#!/bin/bash

# Tester for thread_basics exercise
# Tests basic thread creation and joining

RED='\033[0;31m'
GREEN='\033[0;32m'
YELLOW='\033[1;33m'
NC='\033[0m' # No Color

EXERCISE="thread_basics"
EXE_PATH=""
PASSED=0
FAILED=0

# Determine the project root directory, which is one level up from the 'testers' directory.
PROJECT_ROOT=$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd)

echo "========================================"
echo "Testing: $EXERCISE"
echo "========================================"

# --- Compilation and Executable Finding Logic ---
EXE_PATH="$PROJECT_ROOT/$EXERCISE"
RENDU_EXE_PATH="$PROJECT_ROOT/rendu/$EXERCISE"
SOURCE_FILE="$PROJECT_ROOT/${EXERCISE}.c"
RENDU_SOURCE_FILE="$PROJECT_ROOT/rendu/${EXERCISE}.c"

# Prefer executable in 'rendu' directory
if [ -f "$RENDU_EXE_PATH" ]; then
    EXE_PATH="$RENDU_EXE_PATH"
# Fallback to root directory executable
elif [ -f "$EXE_PATH" ]; then
    : # EXE_PATH is already set correctly
# If no executable, try to compile from source
else
    COMPILE_CANDIDATE=""
    if [ -f "$RENDU_SOURCE_FILE" ]; then
        COMPILE_CANDIDATE="$RENDU_SOURCE_FILE"
    elif [ -f "$SOURCE_FILE" ]; then
        COMPILE_CANDIDATE="$SOURCE_FILE"
    fi

    if [ -n "$COMPILE_CANDIDATE" ]; then
        echo -e "${YELLOW}Executable not found, attempting to compile from $COMPILE_CANDIDATE...${NC}"
        # Compile into the root directory
        gcc -Wall -Wextra -Werror -pthread "$COMPILE_CANDIDATE" -o "$PROJECT_ROOT/$EXERCISE"
        if [ $? -eq 0 ]; then
            echo -e "${GREEN}✓ Compilation successful.${NC}"
            EXE_PATH="$PROJECT_ROOT/$EXERCISE" # Use the newly compiled executable
        else
            echo -e "${RED}✗ Compilation failed.${NC}"
            exit 1
        fi
    else
        echo -e "${RED}✗ Executable and source file for '$EXERCISE' not found.${NC}"
        exit 1
    fi
fi
echo -e "${YELLOW}Using executable at: $EXE_PATH${NC}"
# --- End of Logic ---

# Test 1: Basic execution with 1 message
echo -n "Test 1: Basic execution (1 message)... "
OUTPUT=$(timeout 5 "$EXE_PATH" 1 2>&1)
if [ $? -eq 0 ]; then
    if echo "$OUTPUT" | grep -q "Thread 1: Hello from thread 1" && \
       echo "$OUTPUT" | grep -q "Thread 2: Hello from thread 2"; then
        echo -e "${GREEN}✓ PASSED${NC}"
        ((PASSED++))
    else
        echo -e "${RED}✗ FAILED${NC}"
        echo "Expected output to contain both thread messages"
        echo "Got: $OUTPUT"
        ((FAILED++))
    fi
else
    echo -e "${RED}✗ FAILED (timeout or crash)${NC}"
    ((FAILED++))
fi

# Test 2: Multiple messages (5)
echo -n "Test 2: Multiple messages (5)... "
OUTPUT=$(timeout 5 "$EXE_PATH" 5 2>&1)
if [ $? -eq 0 ]; then
    COUNT_T1=$(echo "$OUTPUT" | grep -c "Thread 1: Hello from thread 1")
    COUNT_T2=$(echo "$OUTPUT" | grep -c "Thread 2: Hello from thread 2")
    if [ "$COUNT_T1" -eq 5 ] && [ "$COUNT_T2" -eq 5 ]; then
        echo -e "${GREEN}✓ PASSED${NC}"
        ((PASSED++))
    else
        echo -e "${RED}✗ FAILED${NC}"
        echo "Expected 5 messages from each thread"
        echo "Got: Thread 1: $COUNT_T1, Thread 2: $COUNT_T2"
        ((FAILED++))
    fi
else
    echo -e "${RED}✗ FAILED (timeout or crash)${NC}"
    ((FAILED++))
fi

# Test 3: Large number (10)
echo -n "Test 3: Large number (10)... "
OUTPUT=$(timeout 5 "$EXE_PATH" 10 2>&1)
if [ $? -eq 0 ]; then
    COUNT_T1=$(echo "$OUTPUT" | grep -c "Thread 1: Hello from thread 1")
    COUNT_T2=$(echo "$OUTPUT" | grep -c "Thread 2: Hello from thread 2")
    if [ "$COUNT_T1" -eq 10 ] && [ "$COUNT_T2" -eq 10 ]; then
        echo -e "${GREEN}✓ PASSED${NC}"
        ((PASSED++))
    else
        echo -e "${RED}✗ FAILED${NC}"
        echo "Expected 10 messages from each thread"
        echo "Got: Thread 1: $COUNT_T1, Thread 2: $COUNT_T2"
        ((FAILED++))
    fi
else
    echo -e "${RED}✗ FAILED (timeout or crash)${NC}"
    ((FAILED++))
fi

# Test 4: Check for memory leaks with valgrind
if command -v valgrind &> /dev/null; then
    echo -n "Test 4: Memory leak check... "
    VALGRIND_OUTPUT=$(valgrind --leak-check=full --error-exitcode=42 "$EXE_PATH" 3 2>&1)
    if [ $? -ne 42 ]; then
        echo -e "${GREEN}✓ PASSED${NC}"
        ((PASSED++))
    else
        echo -e "${RED}✗ FAILED${NC}"
        echo "Memory leaks detected!"
        echo "$VALGRIND_OUTPUT" | grep -A 5 "LEAK SUMMARY"
        ((FAILED++))
    fi
else
    echo -e "${YELLOW}⊘ Test 4: Valgrind not installed, skipping memory test${NC}"
fi

# Summary
echo "========================================"
echo -e "Results: ${GREEN}$PASSED passed${NC}, ${RED}$FAILED failed${NC}"
echo "========================================"

if [ $FAILED -eq 0 ]; then
    exit 0
else
    exit 1
fi