Add in GetPoolRate test

x/market/keeper/rate_test.go

@@ -0,0 +1,34 @@
+package keeper_test
+
+import (
+	"sort"
+	"strconv"
+	"strings"
+	"testing"
+
+	keepertest "github.com/pendulum-labs/market/testutil/keeper"
+	"github.com/stretchr/testify/require"
+)
+
+// Prevent strconv unused error
+var _ = strconv.IntSize
+
+func TestGetPoolRate(t *testing.T) {
+	keeper := keepertest.CreateTestEnvironment(t)
+	items := createNMember(keeper.MarketKeeper, keeper.Context, 10)
+	for _, item := range items {
+
+		pairArray := []string{item.DenomA, item.DenomB}
+		sort.Strings(pairArray)
+
+		pair := strings.Join(pairArray, ",")
+
+		_, _, error := keeper.MarketKeeper.GetPoolRate(
+			keeper.Context,
+			pair,
+		)
+
+		require.Nil(t, error)
+
+	}
+}