1 files changed, 32 insertions, 0 deletions
diff --git a/pkg/systemd/activation_test.go b/pkg/systemd/activation_test.go
new file mode 100644
index 000000000..d2553777b
--- /dev/null
+++ b/pkg/systemd/activation_test.go
@@ -0,0 +1,32 @@
+package systemd
+
+import (
+	"fmt"
+	"os"
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func TestSocketActivated(t *testing.T) {
+	assert := assert.New(t)
+
+	assert.False(SocketActivated())
+
+	// different pid
+	assert.NoError(os.Setenv("LISTEN_PID", "1"))
+	assert.False(SocketActivated())
+
+	// same pid no fds
+	assert.NoError(os.Setenv("LISTEN_PID", fmt.Sprintf("%d", os.Getpid())))
+	assert.NoError(os.Setenv("LISTEN_FDS", "0"))
+	assert.False(SocketActivated())
+
+	// same pid some fds
+	assert.NoError(os.Setenv("LISTEN_FDS", "1"))
+	assert.True(SocketActivated())
+
+	// FDNAME is ok too (but not required)
+	assert.NoError(os.Setenv("LISTEN_FDNAMES", "/meshuggah/rocks"))
+	assert.True(SocketActivated())
+}