diff --git a/cmd/gndtest/main.go b/cmd/gndtest/main.go
new file mode 100644
index 0000000..7b9a43e
--- /dev/null
+++ b/cmd/gndtest/main.go
@@ -0,0 +1,113 @@
+package main
+
+import (
+	"fmt"
+	"os"
+	"strings"
+)
+
+// TestCase represents a single test case
+type TestCase struct {
+	Name        string
+	Input       string
+	Expected    string
+	Description string
+}
+
+// TestResult represents the result of running a test
+type TestResult struct {
+	TestCase TestCase
+	Passed   bool
+	Output   string
+	Error    string
+}
+
+func parseTestFile(content string) (TestCase, error) {
+	lines := strings.Split(content, "\n")
+	if len(lines) < 4 {
+		return TestCase{}, fmt.Errorf("invalid test file format")
+	}
+
+	// Format:
+	// name: Test Name
+	// description: Test Description
+	// input: |
+	//   test input
+	// expected: |
+	//   expected output
+	var testCase TestCase
+	var currentSection string
+	var currentContent strings.Builder
+
+	for _, line := range lines {
+		if strings.HasPrefix(line, "name: ") {
+			testCase.Name = strings.TrimPrefix(line, "name: ")
+		} else if strings.HasPrefix(line, "description: ") {
+			testCase.Description = strings.TrimPrefix(line, "description: ")
+		} else if strings.HasPrefix(line, "input: |") {
+			currentSection = "input"
+			currentContent.Reset()
+		} else if strings.HasPrefix(line, "expected: |") {
+			currentSection = "expected"
+			currentContent.Reset()
+		} else if currentSection != "" {
+			if line == "" && currentContent.Len() == 0 {
+				continue
+			}
+			currentContent.WriteString(line)
+			currentContent.WriteString("\n")
+		}
+	}
+
+	testCase.Input = strings.TrimSpace(currentContent.String())
+	return testCase, nil
+}
+
+func main() {
+	if len(os.Args) != 2 {
+		fmt.Println("Usage: gndtest <test-file>")
+		os.Exit(1)
+	}
+
+	testFile := os.Args[1]
+
+	// Read test file
+	content, err := os.ReadFile(testFile)
+	if err != nil {
+		fmt.Printf("Error reading test file: %v\n", err)
+		os.Exit(1)
+	}
+
+	// Parse test case
+	testCase, err := parseTestFile(string(content))
+	if err != nil {
+		fmt.Printf("Error parsing test case: %v\n", err)
+		os.Exit(1)
+	}
+
+	// Run test
+	result := runTest(testCase)
+
+	// Print result
+	if result.Passed {
+		fmt.Printf("✓ Test '%s' passed\n", testCase.Name)
+	} else {
+		fmt.Printf("✗ Test '%s' failed\n", testCase.Name)
+		if result.Error != "" {
+			fmt.Printf("Error: %s\n", result.Error)
+		}
+		if result.Output != "" {
+			fmt.Printf("Output: %s\n", result.Output)
+		}
+		os.Exit(1)
+	}
+}
+
+func runTest(testCase TestCase) TestResult {
+	// TODO: Implement actual test execution using gnd
+	// For now, just return a placeholder result
+	return TestResult{
+		TestCase: testCase,
+		Passed:   true,
+	}
+}