Add test for Azure CR (#520)

Author: jonesbusy

src/test/java/land/oras/PublicAzureCRITCase.java

@@ -0,0 +1,60 @@
+/*-
+ * =LICENSE=
+ * ORAS Java SDK
+ * ===
+ * Copyright (C) 2024 - 2025 ORAS
+ * ===
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * =LICENSEEND=
+ */
+
+package land.oras;
+
+import static org.junit.jupiter.api.Assertions.assertNotNull;
+
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.parallel.Execution;
+import org.junit.jupiter.api.parallel.ExecutionMode;
+
+@Execution(ExecutionMode.CONCURRENT)
+class PublicAzureCRITCase {
+
+    @Test
+    void shouldPullAnonymousIndex() {
+
+        // Via tag
+        Registry registry = Registry.builder().build();
+        ContainerRef containerRef1 = ContainerRef.parse("mcr.microsoft.com/azurelinux/busybox:1.36");
+        Index index = registry.getIndex(containerRef1);
+        assertNotNull(index);
+
+        // Via digest
+        ContainerRef containerRef2 = ContainerRef.parse(
+                "mcr.microsoft.com/azurelinux/busybox@sha256:330ce7e940f7476089c4c74565c63767988e188b06988e58e76b54890e7f621b");
+        Index index2 = registry.getIndex(containerRef2);
+        assertNotNull(index2);
+    }
+
+    @Test
+    void shouldPullAnonymousManifest() {
+
+        // Via tag
+        Registry registry = Registry.builder().build();
+
+        // Via digest
+        ContainerRef containerRef1 = ContainerRef.parse(
+                "mcr.microsoft.com/azurelinux/busybox@sha256:ec5adfc87f57633da1feedb2361c06374020ab9c99d4a14b19319e57284b6656");
+        Manifest manifest1 = registry.getManifest(containerRef1);
+        assertNotNull(manifest1);
+    }
+}