test(jaeger): setup integration tests for jaeger (#739)

* test(jaeger): add integration test for opentelemtry jaeger

* chore(jaeger): ignore testing harness in code coverage.

* chore(common): add opentelemetry-api and opentelemetry-sdk to coverage.

Author: TommyCpp

.dockerignore

@@ -0,0 +1 @@
+target/

.github/codecov.yaml

@@ -10,3 +10,6 @@ coverage:
       default:
         target: auto
         threshold: 0.5%
+
+ignore:
+  - "opentelemetry-jaeger/src/testing"

.github/workflows/ci.yml

@@ -103,7 +103,7 @@ jobs:
     - uses: actions-rs/cargo@v1
       with:
         command: test
-        args: -p opentelemetry -p opentelemetry-aws -p opentelemetry-jaeger -p opentelemetry-datadog -p opentelemetry-dynatrace -p opentelemetry-zipkin --all-features --no-fail-fast
+        args: -p opentelemetry -p opentelemetry-api -p opentelemetry-sdk -p opentelemetry-aws -p opentelemetry-jaeger -p opentelemetry-datadog -p opentelemetry-dynatrace -p opentelemetry-zipkin --all-features --no-fail-fast
       env:
         CARGO_INCREMENTAL: '0'
         RUSTFLAGS: '-Zprofile -Ccodegen-units=1 -Cinline-threshold=0 -Clink-dead-code -Coverflow-checks=off -Cpanic=abort -Zpanic_abort_tests'

opentelemetry-jaeger/Cargo.toml

@@ -40,6 +40,10 @@ tokio = { version = "1.0", features = ["net", "sync"], optional = true }
 wasm-bindgen = { version = "0.2", optional = true }
 wasm-bindgen-futures = { version = "0.4.18", optional = true }
 
+tonic = { version = "0.6.2", optional = true }
+prost = { version = "0.9.0", optional = true }
+prost-types = { version = "0.9.0", optional = true }
+
 [dev-dependencies]
 bytes = "1"
 futures-executor = "0.3"
@@ -77,4 +81,5 @@ wasm_collector_client = [
 ]
 rt-tokio = ["tokio", "opentelemetry/rt-tokio"]
 rt-tokio-current-thread = ["tokio", "opentelemetry/rt-tokio-current-thread"]
-rt-async-std = ["async-std","opentelemetry/rt-async-std"]
+rt-async-std = ["async-std", "opentelemetry/rt-async-std"]
+integration_test = ["tonic", "prost", "prost-types", "rt-tokio", "collector_client"]

opentelemetry-jaeger/src/lib.rs

@@ -234,6 +234,11 @@
 #![cfg_attr(test, deny(warnings))]
 
 mod exporter;
+
+#[cfg(feature = "integration_test")]
+#[doc(hidden)]
+pub mod testing;
+
 mod propagator {
     //! # Jaeger Propagator
     //!