pkg/kubecost: fix dropped test errors

Signed-off-by: Lars Lehtonen <lars.lehtonen@gmail.com>

pkg/kubecost/asset_test.go

@@ -959,10 +959,13 @@ func TestAssetSetRange_AccumulateToAssetSet(t *testing.T) {
 		GenerateMockAssetSet(startD2, day),
 	)
 	err = asr.AggregateBy(nil, nil)
-	as, err = asr.AccumulateToAssetSet()
 	if err != nil {
 		t.Fatalf("AssetSetRange.AggregateBy: unexpected error: %s", err)
 	}
+	as, err = asr.AccumulateToAssetSet()
+	if err != nil {
+		t.Fatalf("AssetSetRange.AccumulateToAssetSet: unexpected error: %s", err)
+	}
 	assertAssetSet(t, as, "1a", window, map[string]float64{
 		"__undefined__/__undefined__/__undefined__/Compute/cluster1/Node/Kubernetes/gcp-node1/node1":                   21.00,
 		"__undefined__/__undefined__/__undefined__/Compute/cluster1/Node/Kubernetes/gcp-node2/node2":                   16.50,
@@ -983,10 +986,13 @@ func TestAssetSetRange_AccumulateToAssetSet(t *testing.T) {
 		GenerateMockAssetSet(startD2, day),
 	)
 	err = asr.AggregateBy([]string{}, nil)
-	as, err = asr.AccumulateToAssetSet()
 	if err != nil {
 		t.Fatalf("AssetSetRange.AggregateBy: unexpected error: %s", err)
 	}
+	as, err = asr.AccumulateToAssetSet()
+	if err != nil {
+		t.Fatalf("AssetSetRange.AccumulateToAssetSet: unexpected error: %s", err)
+	}
 	assertAssetSet(t, as, "1b", window, map[string]float64{
 		"": 180.00,
 	}, nil)
@@ -1038,6 +1044,9 @@ func TestAssetSetRange_AccumulateToAssetSet(t *testing.T) {
 	)
 
 	err = asr.AggregateBy([]string{string(AssetTypeProp)}, nil)
+	if err != nil {
+		t.Fatalf("AssetSetRange.AggregateBy: unexpected error: %s", err)
+	}
 	as, err = asr.AccumulateToAssetSet()
 	if err != nil {
 		t.Fatalf("AssetSetRange.AggregateBy: unexpected error: %s", err)