Move Metric inmemory exporter (#2548)

Author: cijothomas

opentelemetry-sdk/CHANGELOG.md

@@ -286,9 +286,11 @@ limit.
   before:
   `opentelemetry_sdk::testing::logs::{InMemoryLogExporter, InMemoryLogExporterBuilder};`
   `opentelemetry_sdk::testing::trace::{InMemorySpanExporter, InMemorySpanExporterBuilder};`
+  `opentelemetry_sdk::testing::metrics::{InMemoryMetricExporter, InMemoryMetricExporterBuilder};`
   now:
   `opentelemetry_sdk::logs::{InMemoryLogExporter, InMemoryLogExporterBuilder};`
   `opentelemetry_sdk::trace::{InMemorySpanExporter, InMemorySpanExporterBuilder};`
+  `opentelemetry_sdk::metrics::{InMemoryMetricExporter, InMemoryMetricExporterBuilder};`
 
 ## 0.27.1
 

opentelemetry-sdk/src/testing/metrics/in_memory_exporter.rs renamed to opentelemetry-sdk/src/metrics/in_memory_exporter.rs

@@ -27,7 +27,7 @@ use std::sync::{Arc, Mutex};
 ///# use opentelemetry_sdk::metrics;
 ///# use opentelemetry::{KeyValue};
 ///# use opentelemetry::metrics::MeterProvider;
-///# use opentelemetry_sdk::testing::metrics::InMemoryMetricExporter;
+///# use opentelemetry_sdk::metrics::InMemoryMetricExporter;
 ///# use opentelemetry_sdk::metrics::PeriodicReader;
 ///
 ///# #[tokio::main]
@@ -86,7 +86,7 @@ impl Default for InMemoryMetricExporter {
 /// # Example
 ///
 /// ```
-/// # use opentelemetry_sdk::testing::metrics::{InMemoryMetricExporter, InMemoryMetricExporterBuilder};
+/// # use opentelemetry_sdk::metrics::{InMemoryMetricExporter, InMemoryMetricExporterBuilder};
 ///
 /// let exporter = InMemoryMetricExporterBuilder::new().build();
 /// ```
@@ -138,7 +138,7 @@ impl InMemoryMetricExporter {
     /// # Example
     ///
     /// ```
-    /// # use opentelemetry_sdk::testing::metrics::InMemoryMetricExporter;
+    /// # use opentelemetry_sdk::metrics::InMemoryMetricExporter;
     ///
     /// let exporter = InMemoryMetricExporter::default();
     /// let finished_metrics = exporter.get_finished_metrics().unwrap();
@@ -155,7 +155,7 @@ impl InMemoryMetricExporter {
     /// # Example
     ///
     /// ```
-    /// # use opentelemetry_sdk::testing::metrics::InMemoryMetricExporter;
+    /// # use opentelemetry_sdk::metrics::InMemoryMetricExporter;
     ///
     /// let exporter = InMemoryMetricExporter::default();
     /// exporter.reset();

opentelemetry-sdk/src/metrics/mod.rs

@@ -57,6 +57,14 @@ pub(crate) mod pipeline;
 pub mod reader;
 pub(crate) mod view;
 
+/// In-Memory metric exporter for testing purpose.
+#[cfg(any(feature = "testing", test))]
+#[cfg_attr(docsrs, doc(cfg(any(feature = "testing", test))))]
+pub mod in_memory_exporter;
+#[cfg(any(feature = "testing", test))]
+#[cfg_attr(docsrs, doc(cfg(any(feature = "testing", test))))]
+pub use in_memory_exporter::{InMemoryMetricExporter, InMemoryMetricExporterBuilder};
+
 pub use aggregation::*;
 pub use error::{MetricError, MetricResult};
 pub use manual_reader::*;
@@ -107,8 +115,8 @@ mod tests {
     use super::*;
     use crate::metrics::data::Aggregation;
     use crate::metrics::data::ResourceMetrics;
-    use crate::testing::metrics::InMemoryMetricExporter;
-    use crate::testing::metrics::InMemoryMetricExporterBuilder;
+    use crate::metrics::InMemoryMetricExporter;
+    use crate::metrics::InMemoryMetricExporterBuilder;
     use data::Gauge;
     use data::GaugeDataPoint;
     use data::Histogram;

opentelemetry-sdk/src/metrics/periodic_reader.rs

@@ -468,11 +468,11 @@ impl MetricReader for PeriodicReader {
 mod tests {
     use super::PeriodicReader;
     use crate::{
+        metrics::InMemoryMetricExporter,
         metrics::{
             data::ResourceMetrics, exporter::PushMetricExporter, reader::MetricReader, MetricError,
             MetricResult, SdkMeterProvider, Temporality,
         },
-        testing::metrics::InMemoryMetricExporter,
         Resource,
     };
     use async_trait::async_trait;

opentelemetry-sdk/src/metrics/periodic_reader_with_async_runtime.rs

@@ -416,8 +416,8 @@ mod tests {
     use crate::metrics::reader::MetricReader;
     use crate::metrics::MetricError;
     use crate::{
-        metrics::data::ResourceMetrics, metrics::SdkMeterProvider, runtime,
-        testing::metrics::InMemoryMetricExporter, Resource,
+        metrics::data::ResourceMetrics, metrics::InMemoryMetricExporter, metrics::SdkMeterProvider,
+        runtime, Resource,
     };
     use opentelemetry::metrics::MeterProvider;
     use std::sync::mpsc;

opentelemetry-sdk/src/testing/metrics/mod.rs

@@ -1,10 +1,4 @@
-//! In-Memory metrics exporter for testing purpose.
-
-/// The `in_memory_exporter` module provides in-memory metrics exporter.
-/// For detailed usage and examples, see `in_memory_exporter`.
-pub mod in_memory_exporter;
-pub use in_memory_exporter::{InMemoryMetricExporter, InMemoryMetricExporterBuilder};
-
+//! Structs for tests.
 #[doc(hidden)]
 pub mod metric_reader;
 pub use metric_reader::TestMetricReader;