diff --git a/x/auth/querier_test.go b/x/auth/querier_test.go
new file mode 100644
index 000000000..3eb632e1b
--- /dev/null
+++ b/x/auth/querier_test.go
@@ -0,0 +1,41 @@
+package auth
+
+import (
+	"fmt"
+	"testing"
+
+	"github.com/stretchr/testify/require"
+	abci "github.com/tendermint/tendermint/abci/types"
+)
+
+func Test_queryAccount(t *testing.T) {
+	input := setupTestInput()
+	req := abci.RequestQuery{
+		Path: fmt.Sprintf("custom/%s/%s", QuerierRoute, QueryAccount),
+		Data: []byte{},
+	}
+
+	res, err := queryAccount(input.ctx, req, input.ak)
+	require.NotNil(t, err)
+	require.Nil(t, res)
+
+	req.Data = input.cdc.MustMarshalJSON(NewQueryAccountParams([]byte("")))
+	res, err = queryAccount(input.ctx, req, input.ak)
+	require.Nil(t, err)
+	require.Equal(t, res, []byte("null"))
+
+	_, _, addr := keyPubAddr()
+	req.Data = input.cdc.MustMarshalJSON(NewQueryAccountParams(addr))
+	res, err = queryAccount(input.ctx, req, input.ak)
+	require.Nil(t, err)
+	require.Equal(t, res, []byte("null"))
+
+	input.ak.SetAccount(input.ctx, input.ak.NewAccountWithAddress(input.ctx, addr))
+	res, err = queryAccount(input.ctx, req, input.ak)
+	require.Nil(t, err)
+	require.NotEqual(t, res, []byte("null"))
+
+	var account Account
+	err2 := input.cdc.UnmarshalJSON(res, &account)
+	require.Nil(t, err2)
+}