Test: add container registry list

This is a smoke test, without login and logout.

Signed-off-by: ChengHao Yang <17496418+tico88612@users.noreply.github.com>

Author: tico88612

Makefile

@@ -188,6 +188,7 @@ integration: init-block
 		$(SWIFT) test -c $(BUILD_CONFIGURATION) $(SWIFT_CONFIGURATION) --filter TestCLIRunCommand2 || exit_code=1 ; \
 		$(SWIFT) test -c $(BUILD_CONFIGURATION) $(SWIFT_CONFIGURATION) --filter TestCLIRunCommand3 || exit_code=1 ; \
 		$(SWIFT) test -c $(BUILD_CONFIGURATION) $(SWIFT_CONFIGURATION) --filter TestCLIPruneCommand || exit_code=1 ; \
+		$(SWIFT) test -c $(BUILD_CONFIGURATION) $(SWIFT_CONFIGURATION) --filter TestCLIRegistry || exit_code=1 ; \
 		$(SWIFT) test -c $(BUILD_CONFIGURATION) $(SWIFT_CONFIGURATION) --filter TestCLIStatsCommand || exit_code=1 ; \
 		$(SWIFT) test -c $(BUILD_CONFIGURATION) $(SWIFT_CONFIGURATION) --filter TestCLIImagesCommand || exit_code=1 ; \
 		$(SWIFT) test -c $(BUILD_CONFIGURATION) $(SWIFT_CONFIGURATION) --filter TestCLIRunBase || exit_code=1 ; \

Tests/CLITests/Subcommands/Registry/TestCLIRegistry.swift

@@ -0,0 +1,39 @@
+//===----------------------------------------------------------------------===//
+// Copyright © 2026 Apple Inc. and the container project authors.
+//
+// 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
+//
+//   https://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.
+//===----------------------------------------------------------------------===//
+
+import Foundation
+import Testing
+
+class TestCLIRegistry: CLITest {
+    @Test func testListDefaultFormat() throws {
+        let (_, output, error, status) = try run(arguments: ["registry", "list"])
+        #expect(status == 0, "registry list should succeed, stderr: \(error)")
+
+        // Check for table header
+        let requiredHeaders = ["HOSTNAME", "USERNAME", "MODIFIED", "CREATED"]
+        #expect(
+            requiredHeaders.allSatisfy { output.contains($0) },
+            "output should contain all required headers"
+        )
+    }
+
+    @Test func testListQuietMode() throws {
+        let (_, output, error, status) = try run(arguments: ["registry", "list", "-q"])
+        #expect(status == 0, "registry list -q should succeed, stderr: \(error)")
+
+        #expect(!output.contains("HOSTNAME"), "quiet mode should not contain headers")
+    }
+}