diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..a1632ab
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,2 @@
+tmp/
+
diff --git a/Dockerfile b/Dockerfile
index 9cdfcc9..f128d51 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM golang:1.21
+FROM golang:latest
 
 LABEL version="0.0.1"
 LABEL maintainer="Ain Tohvri <ain@flashbit.net>"
diff --git a/test.sh b/test.sh
new file mode 100755
index 0000000..7d2d88d
--- /dev/null
+++ b/test.sh
@@ -0,0 +1,112 @@
+#!/bin/bash
+
+set -e
+
+# Colors for output
+RED='\033[0;31m'
+GREEN='\033[0;32m'
+YELLOW='\033[1;33m'
+NC='\033[0m' # No Color
+
+# Docker image name
+IMAGE_NAME="falco-github-action-test"
+SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+
+# Build Docker image if it doesn't exist
+if ! docker image inspect "$IMAGE_NAME" &>/dev/null; then
+    echo -e "${YELLOW}Building Docker image...${NC}"
+    docker build -t "$IMAGE_NAME" "$SCRIPT_DIR"
+fi
+
+# Test counter
+PASSED=0
+FAILED=0
+TOTAL=0
+
+# Create tmp directory if it doesn't exist
+TMP_DIR="$SCRIPT_DIR/tmp"
+mkdir -p "$TMP_DIR"
+
+# Function to run a test
+run_test() {
+    local file=$1
+    local options=$2
+    local should_pass=$3
+    local description=$4
+    
+    TOTAL=$((TOTAL + 1))
+    
+    echo -n "Testing $description... "
+    
+    # Run falco lint in Docker container
+    # Arguments: $1=subcommand, $2=options, $3=target (as per entrypoint.sh and action.yml)
+    if docker run --rm \
+        -v "$SCRIPT_DIR:/workspace" \
+        -w /workspace \
+        "$IMAGE_NAME" \
+        lint "$options" "$file" > "$TMP_DIR/falco_test_output.txt" 2>&1; then
+        exit_code=0
+    else
+        exit_code=$?
+    fi
+    
+    # Check if test result matches expectation
+    if [ "$should_pass" = "true" ]; then
+        if [ $exit_code -eq 0 ]; then
+            echo -e "${GREEN}PASSED${NC}"
+            PASSED=$((PASSED + 1))
+            return 0
+        else
+            echo -e "${RED}FAILED${NC} (expected success, got exit code $exit_code)"
+            echo "Output:"
+            cat "$TMP_DIR/falco_test_output.txt" | sed 's/^/  /'
+            FAILED=$((FAILED + 1))
+            return 1
+        fi
+    else
+        if [ $exit_code -ne 0 ]; then
+            echo -e "${GREEN}PASSED${NC}"
+            PASSED=$((PASSED + 1))
+            return 0
+        else
+            echo -e "${RED}FAILED${NC} (expected failure, got exit code 0)"
+            echo "Output:"
+            cat "$TMP_DIR/falco_test_output.txt" | sed 's/^/  /'
+            FAILED=$((FAILED + 1))
+            return 1
+        fi
+    fi
+}
+
+echo "Running Falco VCL/ACL tests..."
+echo ""
+
+# Test valid VCL file
+run_test "test/vcl/valid.vcl" "" "true" "valid.vcl"
+
+# Test valid VCL file with include
+run_test "test/vcl/valid_with_include.vcl" "-I test/vcl/includes" "true" "valid_with_include.vcl (with -I option)"
+
+# Test invalid VCL file
+run_test "test/vcl/invalid_syntax.vcl" "" "false" "invalid_syntax.vcl"
+
+# Test valid ACL file
+run_test "test/acl/valid.acl" "" "true" "valid.acl"
+
+# Test invalid ACL files
+run_test "test/acl/invalid_syntax.acl" "" "false" "invalid_syntax.acl"
+run_test "test/acl/invalid_ip.acl" "" "false" "invalid_ip.acl"
+run_test "test/acl/invalid_range.acl" "" "false" "invalid_range.acl"
+
+echo ""
+echo "=========================================="
+echo "Test Results: $PASSED passed, $FAILED failed, $TOTAL total"
+
+if [ $FAILED -eq 0 ]; then
+    echo -e "${GREEN}All tests passed!${NC}"
+    exit 0
+else
+    echo -e "${RED}Some tests failed!${NC}"
+    exit 1
+fi
+