More metric tests and fix reconnect

* more metric test and fix reconnect

* remove build-devjmstest as dependency

vendor/github.com/prometheus/client_golang/prometheus/histogram_test.go

@@ -119,28 +119,6 @@ func BenchmarkHistogramWrite8(b *testing.B) {
 	benchmarkHistogramWrite(8, b)
 }
 
-func TestHistogramNonMonotonicBuckets(t *testing.T) {
-	testCases := map[string][]float64{
-		"not strictly monotonic":  {1, 2, 2, 3},
-		"not monotonic at all":    {1, 2, 4, 3, 5},
-		"have +Inf in the middle": {1, 2, math.Inf(+1), 3},
-	}
-	for name, buckets := range testCases {
-		func() {
-			defer func() {
-				if r := recover(); r == nil {
-					t.Errorf("Buckets %v are %s but NewHistogram did not panic.", buckets, name)
-				}
-			}()
-			_ = NewHistogram(HistogramOpts{
-				Name:    "test_histogram",
-				Help:    "helpless",
-				Buckets: buckets,
-			})
-		}()
-	}
-}
-
 // Intentionally adding +Inf here to test if that case is handled correctly.
 // Also, getCumulativeCounts depends on it.
 var testBuckets = []float64{-2, -1, -0.5, 0, 0.5, 1, 2, math.Inf(+1)}
@@ -286,7 +264,7 @@ func TestHistogramVecConcurrency(t *testing.T) {
 		for i := 0; i < vecLength; i++ {
 			m := &dto.Metric{}
 			s := his.WithLabelValues(string('A' + i))
-			s.(Histogram).Write(m)
+			s.Write(m)
 
 			if got, want := len(m.Histogram.Bucket), len(testBuckets)-1; got != want {
 				t.Errorf("got %d buckets in protobuf, want %d", got, want)