diff --git a/test/OpenTelemetry.Tests/Metrics/MetricSnapshotTests.cs b/test/OpenTelemetry.Tests/Metrics/MetricSnapshotTests.cs
new file mode 100644
index 00000000000..254edf887b2
--- /dev/null
+++ b/test/OpenTelemetry.Tests/Metrics/MetricSnapshotTests.cs
@@ -0,0 +1,168 @@
+//
+// Copyright The OpenTelemetry Authors
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+
+using System.Collections.Generic;
+using System.Diagnostics.Metrics;
+
+using OpenTelemetry.Tests;
+
+using Xunit;
+
+namespace OpenTelemetry.Metrics.Tests
+{
+ public class MetricSnapshotTests
+ {
+ [Fact]
+ public void VerifySnapshot_Counter()
+ {
+ var exportedMetrics = new List();
+ var exportedSnapshots = new List();
+
+ using var meter = new Meter(Utils.GetCurrentMethodName());
+ var counter = meter.CreateCounter("meter");
+ using var meterProvider = Sdk.CreateMeterProviderBuilder()
+ .AddMeter(meter.Name)
+ .AddInMemoryExporter(exportedMetrics)
+ .AddInMemoryExporter(exportedSnapshots)
+ .Build();
+
+ // FIRST EXPORT
+ counter.Add(10);
+ meterProvider.ForceFlush();
+
+ // Verify Metric 1
+ Assert.Single(exportedMetrics);
+ var metric1 = exportedMetrics[0];
+ var metricPoints1Enumerator = metric1.GetMetricPoints().GetEnumerator();
+ Assert.True(metricPoints1Enumerator.MoveNext());
+ ref readonly var metricPoint1 = ref metricPoints1Enumerator.Current;
+ Assert.Equal(10, metricPoint1.GetSumLong());
+
+ // Verify Snapshot 1
+ Assert.Single(exportedSnapshots);
+ var snapshot1 = exportedSnapshots[0];
+ Assert.Single(snapshot1.MetricPoints);
+ Assert.Equal(10, snapshot1.MetricPoints[0].GetSumLong());
+
+ // Verify Metric == Snapshot
+ Assert.Equal(metric1.Name, snapshot1.Name);
+ Assert.Equal(metric1.Description, snapshot1.Description);
+ Assert.Equal(metric1.Unit, snapshot1.Unit);
+ Assert.Equal(metric1.MeterName, snapshot1.MeterName);
+ Assert.Equal(metric1.MetricType, snapshot1.MetricType);
+ Assert.Equal(metric1.MeterVersion, snapshot1.MeterVersion);
+
+ // SECOND EXPORT
+ counter.Add(5);
+ meterProvider.ForceFlush();
+
+ // Verify Metric 1, after second export
+ // This value is expected to be updated.
+ Assert.Equal(15, metricPoint1.GetSumLong());
+
+ // Verify Metric 2
+ Assert.Equal(2, exportedMetrics.Count);
+ var metric2 = exportedMetrics[1];
+ var metricPoints2Enumerator = metric2.GetMetricPoints().GetEnumerator();
+ Assert.True(metricPoints2Enumerator.MoveNext());
+ ref readonly var metricPoint2 = ref metricPoints2Enumerator.Current;
+ Assert.Equal(15, metricPoint2.GetSumLong());
+
+ // Verify Snapshot 1, after second export
+ // This value is expected to be unchanged.
+ Assert.Equal(10, snapshot1.MetricPoints[0].GetSumLong());
+
+ // Verify Snapshot 2
+ Assert.Equal(2, exportedSnapshots.Count);
+ var snapshot2 = exportedSnapshots[1];
+ Assert.Single(snapshot2.MetricPoints);
+ Assert.Equal(15, snapshot2.MetricPoints[0].GetSumLong());
+ }
+
+ [Fact]
+ public void VerifySnapshot_Histogram()
+ {
+ var exportedMetrics = new List();
+ var exportedSnapshots = new List();
+
+ using var meter = new Meter(Utils.GetCurrentMethodName());
+ var histogram = meter.CreateHistogram("histogram");
+ using var meterProvider = Sdk.CreateMeterProviderBuilder()
+ .AddMeter(meter.Name)
+ .AddInMemoryExporter(exportedMetrics)
+ .AddInMemoryExporter(exportedSnapshots)
+ .Build();
+
+ // FIRST EXPORT
+ histogram.Record(10);
+ meterProvider.ForceFlush();
+
+ // Verify Metric 1
+ Assert.Single(exportedMetrics);
+ var metric1 = exportedMetrics[0];
+ var metricPoints1Enumerator = metric1.GetMetricPoints().GetEnumerator();
+ Assert.True(metricPoints1Enumerator.MoveNext());
+ ref readonly var metricPoint1 = ref metricPoints1Enumerator.Current;
+ Assert.Equal(1, metricPoint1.GetHistogramCount());
+ Assert.Equal(10, metricPoint1.GetHistogramSum());
+
+ // Verify Snapshot 1
+ Assert.Single(exportedSnapshots);
+ var snapshot1 = exportedSnapshots[0];
+ Assert.Single(snapshot1.MetricPoints);
+ Assert.Equal(1, snapshot1.MetricPoints[0].GetHistogramCount());
+ Assert.Equal(10, snapshot1.MetricPoints[0].GetHistogramSum());
+
+ // Verify Metric == Snapshot
+ Assert.Equal(metric1.Name, snapshot1.Name);
+ Assert.Equal(metric1.Description, snapshot1.Description);
+ Assert.Equal(metric1.Unit, snapshot1.Unit);
+ Assert.Equal(metric1.MeterName, snapshot1.MeterName);
+ Assert.Equal(metric1.MetricType, snapshot1.MetricType);
+ Assert.Equal(metric1.MeterVersion, snapshot1.MeterVersion);
+
+ // SECOND EXPORT
+ histogram.Record(5);
+ meterProvider.ForceFlush();
+
+ // Verify Metric 1 after second export
+ // This value is expected to be updated.
+ Assert.Equal(2, metricPoint1.GetHistogramCount());
+ Assert.Equal(15, metricPoint1.GetHistogramSum());
+
+ // Verify Metric 2
+ Assert.Equal(2, exportedMetrics.Count);
+ var metric2 = exportedMetrics[1];
+ var metricPoints2Enumerator = metric2.GetMetricPoints().GetEnumerator();
+ Assert.True(metricPoints2Enumerator.MoveNext());
+ ref readonly var metricPoint2 = ref metricPoints2Enumerator.Current;
+ Assert.Equal(2, metricPoint2.GetHistogramCount());
+ Assert.Equal(15, metricPoint2.GetHistogramSum());
+
+ // Verify Snapshot 1 after second export
+ // This value is expected to be unchanged.
+ Assert.Equal(1, snapshot1.MetricPoints[0].GetHistogramCount());
+ Assert.Equal(10, snapshot1.MetricPoints[0].GetHistogramSum());
+
+ // Verify Snapshot 2
+ Assert.Equal(2, exportedSnapshots.Count);
+ var snapshot2 = exportedSnapshots[1];
+ Assert.Single(snapshot2.MetricPoints);
+ Assert.Equal(2, snapshot2.MetricPoints[0].GetHistogramCount());
+ Assert.Equal(15, snapshot2.MetricPoints[0].GetHistogramSum());
+ }
+ }
+}