integration: Use temporary directory for tests

This removes the problem that the native sim firmware places a
`flash.bin` in the source tree of the integration test which influences
following tests.

1 files changed, 8 insertions, 2 deletions

diff --git a/integration/execution_test.go b/integration/execution_test.go
index dad73e2..d1e94b7 100644
--- a/integration/execution_test.go
+++ b/integration/execution_test.go
@@ -18,14 +18,20 @@ const (
 
 func TestExecuteFirmware(t *testing.T) {
 	firmware := os.Getenv(ENV_NATIVE_SIM_FIRMWARE)
-
 	if firmware == "" {
 		t.Skip("Environment variable '" + ENV_NATIVE_SIM_FIRMWARE + "' not set")
 	}
 
+	dir, err := os.MkdirTemp("", "iot-contact-go-*")
+	if err != nil {
+		t.Skip("Could not create temporary directory")
+	}
+	defer os.RemoveAll(dir)
+
 	cmd := exec.Command(firmware)
+	cmd.Dir = dir
 
-	err := cmd.Start()
+	err = cmd.Start()
 	if err != nil {
 		t.Fatalf("Could not start native sim firmware: %v", err)
 	}