Added Tests for the previous Implementation

Author: Debashismitra01

exporters/common/src/test/java/io/opentelemetry/exporter/internal/TlsConfigHelperTest.java

@@ -94,4 +94,30 @@ void setSslContext_AlreadyExists_Throws() throws Exception {
         .isInstanceOf(IllegalStateException.class)
         .hasMessageContaining("sslContext or trustManager has been previously configured");
   }
+
+  @Test
+  void getEffectiveTrustManager_returnsConfiguredTrustManager()
+      throws CertificateEncodingException {
+    helper.setTrustManagerFromCerts(serverTls.certificate().getEncoded());
+
+    assertThat(helper.getEffectiveTrustManager()).isSameAs(helper.getTrustManager());
+  }
+
+  @Test
+  void getEffectiveTrustManager_returnsDefaultTrustManager() {
+    assertThat(helper.getEffectiveTrustManager()).isNotNull();
+  }
+
+  @Test
+  void getEffectiveTrustManager_returnsNullWhenSslContextConfigured() throws Exception {
+    helper.setSslContext(
+        SSLContext.getInstance("TLS"), TlsUtil.trustManager(serverTls.certificate().getEncoded()));
+
+    assertThat(helper.getEffectiveTrustManager()).isNull();
+  }
+
+  @Test
+  void getSslContext_usesDefaultTrustManagerWhenUnset() {
+    assertThat(helper.getSslContext()).isNotNull();
+  }
 }

exporters/common/src/test/java/io/opentelemetry/exporter/internal/TlsUtilTest.java

@@ -79,6 +79,11 @@ void generatePrivateKey_Invalid() {
         .hasMessage("Unable to generate key from supported algorithms: [EC]");
   }
 
+  @Test
+  void defaultTrustManager() {
+    assertThatCode(TlsUtil::defaultTrustManager).doesNotThrowAnyException();
+  }
+
   /**
    * Append <a href="https://datatracker.ietf.org/doc/html/rfc7468#section-5.2">explanatory text</a>
    * prefix and verify {@link TlsUtil#keyManager(byte[], byte[])} succeeds.

exporters/sender/okhttp/src/test/java/io/opentelemetry/exporter/sender/okhttp/internal/OkHttpHttpSenderTest.java

@@ -17,6 +17,7 @@
 import java.util.concurrent.ThreadPoolExecutor;
 import java.util.concurrent.TimeUnit;
 import java.util.concurrent.atomic.AtomicReference;
+import javax.net.ssl.SSLContext;
 import org.junit.jupiter.api.Test;
 
 class OkHttpHttpSenderTest {
@@ -60,4 +61,27 @@ public int getContentLength() {
       return 0;
     }
   }
+
+  @Test
+  void constructor_usesDefaultTrustManagerWhenTrustManagerIsNull() throws Exception {
+    SSLContext sslContext = SSLContext.getInstance("TLS");
+    sslContext.init(null, null, null);
+
+    OkHttpHttpSender sender =
+        new OkHttpHttpSender(
+            URI.create("https://localhost"),
+            "text/plain",
+            null,
+            Duration.ofSeconds(10),
+            Duration.ofSeconds(10),
+            Collections::emptyMap,
+            null,
+            null,
+            sslContext,
+            null,
+            null,
+            Long.MAX_VALUE);
+
+    assertThat(sender).isNotNull();
+  }
 }