add test for plancontext

Signed-off-by: Andrea Luzzardi <aluzzardi@gmail.com>

plancontext/context_test.go

@@ -0,0 +1,18 @@
+package plancontext
+
+import (
+	"testing"
+
+	"github.com/stretchr/testify/require"
+)
+
+func TestContext(t *testing.T) {
+	ctx := New()
+
+	id := ctx.Secrets.Register(&Secret{
+		PlainText: "test",
+	})
+	secret := ctx.Secrets.Get(id)
+	require.NotNil(t, secret)
+	require.Equal(t, "test", secret.PlainText)
+}