fix mocks and fixture

storage/remote/client.go

@@ -352,7 +352,7 @@ func NewTestClient(name, url string) WriteClient {
 	return &TestClient{name: name, url: url}
 }
 
-func (c *TestClient) Store(_ context.Context, req []byte) error {
+func (c *TestClient) Store(_ context.Context, req []byte, _ int) error {
 	r := rand.Intn(200-100) + 100
 	time.Sleep(time.Duration(r) * time.Millisecond)
 	return nil

storage/remote/codec_test.go

@@ -108,7 +108,7 @@ var writeRequestWithRefsFixture = &prompb.WriteRequestWithRefs{
 			Exemplars: []prompb.ExemplarRef{{Labels: []prompb.LabelRef{
 				{NameRef: 10, ValueRef: 11},
 			}, Value: 1, Timestamp: 0}},
-			Histograms: []prompb.Histogram{HistogramToHistogramProto(0, &testHistogram)},
+			Histograms: []prompb.Histogram{HistogramToHistogramProto(0, &testHistogram), FloatHistogramToHistogramProto(1, testHistogram.ToFloat())},
 		},
 		{
 			Labels: []prompb.LabelRef{
@@ -122,7 +122,7 @@ var writeRequestWithRefsFixture = &prompb.WriteRequestWithRefs{
 			Exemplars: []prompb.ExemplarRef{{Labels: []prompb.LabelRef{
 				{NameRef: 12, ValueRef: 13},
 			}, Value: 2, Timestamp: 1}},
-			Histograms: []prompb.Histogram{HistogramToHistogramProto(1, &testHistogram)},
+			Histograms: []prompb.Histogram{HistogramToHistogramProto(2, &testHistogram), FloatHistogramToHistogramProto(3, testHistogram.ToFloat())},
 		},
 	},
 }