update the makefile

Author: orcalinux

scanner/Makefile

@@ -1,17 +1,23 @@
 # Compiler and flags
 CXX := g++
-CXXFLAGS := -std=c++17 -Iinclude -Wall -Wextra -Werror
+CXXFLAGS := -std=c++17 -Iinclude -I/usr/include/gtest -Wall -Wextra -Werror
+GTEST_DIR := /usr/include/gtest
+GTEST_LIB_DIR := /usr/lib/x86_64-linux-gnu
 
 # Directories
 SRC_DIR := src
 INCLUDE_DIR := include
 BUILD_DIR := build
 OUTPUT_DIR := output
+TEST_DIR := test
 
 # Source and object files
 SRCS := $(wildcard $(SRC_DIR)/*.cpp)
 OBJS := $(patsubst $(SRC_DIR)/%.cpp, $(BUILD_DIR)/%.o, $(SRCS))
 
+# Object files excluding the main program
+TEST_OBJS := $(filter-out $(BUILD_DIR)/mian.o, $(OBJS))
+
 # Target executable
 TARGET := scanner
 
@@ -42,5 +48,18 @@ run: $(TARGET)
 	./$(TARGET) examples/example1.txt $(OUTPUT_DIR)/output.txt
 	cat $(OUTPUT_DIR)/output.txt
 
-.PHONY: all clean run
+# Build and run a specific test
+test: $(TEST_OBJS) | $(BUILD_DIR)
+	@echo "TEST_FILE is $(TEST_FILE)"
+	@if [ -z "$(TEST_FILE)" ]; then \
+		echo "Error: Please specify a test file using TEST_FILE=<test_file>"; \
+		echo "Example: make test TEST_FILE=token_test"; \
+		exit 1; \
+	else \
+		echo "Compiling $(TEST_DIR)/$(TEST_FILE).cpp"; \
+		$(CXX) $(CXXFLAGS) -I$(GTEST_DIR) -L$(GTEST_LIB_DIR) \
+		$(TEST_DIR)/$(TEST_FILE).cpp $(TEST_OBJS) -lgtest -lgtest_main -pthread \
+		-o $(BUILD_DIR)/$(TEST_FILE)_test && ./$(BUILD_DIR)/$(TEST_FILE)_test; \
+	fi
 
+.PHONY: all clean run test