content: /*
   * Copyright The OpenTelemetry Authors
   * SPDX-License-Identifier: Apache-2.0
   */
  
  package io.opentelemetry.javaagent.tooling.config;
  
  import static org.assertj.core.api.Assertions.assertThat;
  
  import io.opentelemetry.api.GlobalOpenTelemetry;
  import io.opentelemetry.javaagent.tooling.OpenTelemetryInstaller;
  import io.opentelemetry.sdk.autoconfigure.AutoConfiguredOpenTelemetrySdk;
  import io.opentelemetry.sdk.autoconfigure.internal.AutoConfigureUtil;
  import org.junit.jupiter.api.AfterEach;
  import org.junit.jupiter.api.Test;
  import org.junitpioneer.jupiter.SetSystemProperty;
  
  class OtlpProtocolPropertiesSupplierTest {
  
    @AfterEach
    void cleanUp() {
      GlobalOpenTelemetry.resetForTest();
    }
  
    @SetSystemProperty(
        key = "otel.exporter.otlp.protocol",
        value = "grpc") // user explicitly sets grpc
    @Test
    void keepUserOtlpProtocolConfiguration() {
      // when
      AutoConfiguredOpenTelemetrySdk autoConfiguredSdk =
          OpenTelemetryInstaller.installOpenTelemetrySdk(this.getClass().getClassLoader());
  
      // then
      assertThat(
              AutoConfigureUtil.getConfig(autoConfiguredSdk).getString("otel.exporter.otlp.protocol"))
          .isEqualTo("grpc");
    }
  
    @Test
    void defaultHttpProtobufOtlpProtocolConfiguration() {
      // when
      AutoConfiguredOpenTelemetrySdk autoConfiguredSdk =
          OpenTelemetryInstaller.installOpenTelemetrySdk(this.getClass().getClassLoader());
  
      // then
      assertThat(
              AutoConfigureUtil.getConfig(autoConfiguredSdk).getString("otel.exporter.otlp.protocol"))
          .isEqualTo("http/protobuf");
    }
  }
  