Add unit test

tests/robustness/snapmeta/kopia_snapshotter_upgrade_test.go

@@ -0,0 +1,32 @@
+//go:build darwin || (linux && amd64)
+// +build darwin linux,amd64
+
+package snapmeta
+
+import (
+	"errors"
+	"testing"
+
+	"github.com/stretchr/testify/require"
+
+	"github.com/kopia/kopia/repo/format"
+	"github.com/kopia/kopia/tests/tools/kopiarunner"
+)
+
+func TestGetRepositoryStatus(t *testing.T) {
+	repoDir := t.TempDir()
+
+	ks, err := NewSnapshotter(repoDir)
+	if errors.Is(err, kopiarunner.ErrExeVariableNotSet) {
+		t.Skip("KOPIA_EXE not set, skipping test")
+	}
+
+	err = ks.ConnectOrCreateRepo(repoDir)
+	require.NoError(t, err)
+
+	rs, err := ks.GetRepositoryStatus()
+	require.NoError(t, err)
+
+	prev := rs.ContentFormat.MutableParameters.Version
+	require.Equal(t, prev, format.Version(3), "The format version should be 3.")
+}