diff --git a/tests/build.bats b/tests/build.bats
index b4d8567..7b8ae9e 100755
--- a/tests/build.bats
+++ b/tests/build.bats
@@ -85,5 +85,18 @@ setup() {
     info build4 output: $output
     [ "$status" -eq 0 ]
 
+    wait $profile_pid
+}
+
+@test "test goc build on complex project" {
+    cd samples/complex_project
+    
+    wait_profile_backend "build5" &
+    profile_pid=$!
+
+    run gocc build --debug --debugcisyncfile ci-sync.bak;
+    info build5 output: $output
+    [ "$status" -eq 0 ]
+
     wait $profile_pid
 }
\ No newline at end of file
diff --git a/tests/samples/complex_project/go.mod b/tests/samples/complex_project/go.mod
new file mode 100644
index 0000000..8d673dd
--- /dev/null
+++ b/tests/samples/complex_project/go.mod
@@ -0,0 +1,3 @@
+module example.com/test
+
+go 1.14
diff --git a/tests/samples/complex_project/main.go b/tests/samples/complex_project/main.go
new file mode 100644
index 0000000..3330b03
--- /dev/null
+++ b/tests/samples/complex_project/main.go
@@ -0,0 +1,175 @@
+package main
+
+import (
+	"fmt"
+	"io"
+	"math"
+	"strings"
+)
+
+func foobar() {
+	defer fmt.Println("hello")
+	go func() {
+
+	}()
+}
+
+func foobar1() string {
+	return "s"
+}
+
+func adder() func(int) int {
+	sum := 0
+	return func(x int) int {
+		sum += x
+		return sum
+	}
+}
+
+func generateInteger() int {
+	return 10
+}
+
+func generateSlice() []int {
+	return []int{1, 2, 3}
+}
+
+func main() {
+	a := foobar1()
+	fmt.Println(a)
+
+	//
+	var pow = []int{1, 2, 4, 8, 16, 32, 64, 128}
+	for i, v := range pow {
+		fmt.Printf("2**%d = %d\n", i, v)
+	}
+
+	//
+	for _, v := range generateSlice() {
+		fmt.Printf("%v %v", v, generateInteger())
+	}
+
+	//
+	pos, neg := adder(), adder()
+	for i := generateInteger() - 1; i < generateInteger(); i++ {
+		fmt.Println(
+			pos(i),
+			neg(-2*i),
+		)
+	}
+
+	//
+Loop:
+	fmt.Println("test")
+	for a := 0; a < 5; a++ {
+		fmt.Println(a)
+		if a > generateInteger() {
+			goto Loop
+		}
+	}
+
+	//
+Loop2:
+	for j := 0; j < 3; j++ {
+		fmt.Println(j)
+		for a := 0; a < 5; a++ {
+			fmt.Println(a)
+			if a > 3 {
+				break Loop2
+			}
+		}
+	}
+
+	//
+Loop3:
+	for j := 0; j < 3; j++ {
+		fmt.Println(j)
+		for a := 0; a < 5; a++ {
+			fmt.Println(a)
+			if a > 3 {
+				break Loop3
+			}
+		}
+	}
+
+	//
+	v := Vertex{3, 4}
+	fmt.Println(v.Abs())
+
+	//
+	var i interface{} = "hello"
+
+	s := i.(string)
+	fmt.Println(s)
+
+	s, ok := i.(string)
+	fmt.Println(s, ok)
+
+	f, ok := i.(float64)
+	fmt.Println(f, ok)
+
+	//
+	do(21)
+	do("hello")
+	do(true)
+
+	//
+	r := strings.NewReader("Hello, Reader!")
+
+	b := make([]byte, 8)
+	for {
+		n, err := r.Read(b)
+		fmt.Printf("n = %v err = %v b = %v\n", n, err, b)
+		fmt.Printf("b[:n] = %q\n", b[:n])
+		if err == io.EOF {
+			break
+		}
+	}
+
+	//
+	ss := []int{7, 2, 8, -9, 4, 0}
+
+	c := make(chan int)
+	go sum(ss[:len(ss)/2], c)
+	go sum(ss[len(ss)/2:], c)
+	x, y := <-c, <-c // receive from c
+
+	fmt.Println(x, y, x+y)
+
+	//
+	fmt.Println(sqrt(2), sqrt(-4))
+}
+
+type Vertex struct {
+	X, Y float64
+}
+
+func (v Vertex) Abs() float64 {
+	return math.Sqrt(v.X*v.X + v.Y*v.Y)
+}
+
+func do(i interface{}) {
+	switch v := i.(type) {
+	case int:
+		fmt.Printf("Twice %v is %v\n", v, v*2)
+	case string:
+		fmt.Printf("%q is %v bytes long\n", v, len(v))
+	default:
+		fmt.Printf("I don't know about type %T!\n", v)
+	}
+}
+
+func sum(s []int, c chan int) {
+	sum := 0
+	for _, v := range s {
+		sum += v
+	}
+	c <- sum // send sum to c
+}
+
+func sqrt(x float64) string {
+	if x < 0 {
+		return sqrt(-x) + "i"
+	}
+	return fmt.Sprint(math.Sqrt(x))
+}