add test condition

Author: jaydeluca

instrumentation/spring/spring-boot-autoconfigure/src/main/java/io/opentelemetry/instrumentation/spring/autoconfigure/OpenTelemetryAutoConfiguration.java

@@ -77,7 +77,7 @@ public OpenTelemetryAutoConfiguration() {}
   @Configuration
   @Conditional(OtelEnabled.class)
   @ConditionalOnMissingBean(OpenTelemetry.class)
-  @SuppressWarnings("OtelPrivateConstructorForUtilityClass")
+  @SuppressWarnings("OtelPrivateConstructorForUtilityClass") // spring uses reflection
   static class OpenTelemetrySdkConfig {
 
     @Configuration

instrumentation/spring/spring-boot-autoconfigure/src/testDeclarativeConfig/java/io/opentelemetry/instrumentation/spring/autoconfigure/DeclarativeConfigTest.java

@@ -120,4 +120,15 @@ void shouldLoadInstrumentationWhenExplicitlyEnabled() {
             "otel.instrumentation/development.java.spring_web.enabled=true")
         .run(context -> assertThat(context).hasBean("otelRestTemplateBeanPostProcessor"));
   }
+
+  @Test
+  void shouldNotLoadInstrumentationWhenExplicitlyDisabled() {
+    this.contextRunner
+        .withConfiguration(AutoConfigurations.of(SpringWebInstrumentationAutoConfiguration.class))
+        .withPropertyValues(
+            "otel.file_format=1.0-rc.1",
+            "otel.instrumentation/development.java.spring_starter.instrumentation_mode=none",
+            "otel.instrumentation/development.java.spring_web.enabled=false")
+        .run(context -> assertThat(context).doesNotHaveBean("otelRestTemplateBeanPostProcessor"));
+  }
 }