Add test for container export

Author: JaewonHur

Makefile

@@ -194,6 +194,7 @@ integration: init-block
 		$(SWIFT) test -c $(BUILD_CONFIGURATION) $(SWIFT_CONFIGURATION) --filter TestCLIRunBase || exit_code=1 ; \
 		$(SWIFT) test -c $(BUILD_CONFIGURATION) $(SWIFT_CONFIGURATION) --filter TestCLIRunInitImage || exit_code=1 ; \
 		$(SWIFT) test -c $(BUILD_CONFIGURATION) $(SWIFT_CONFIGURATION) --filter TestCLIBuildBase || exit_code=1 ; \
+		$(SWIFT) test -c $(BUILD_CONFIGURATION) $(SWIFT_CONFIGURATION) --filter TestCLIExportCommand || exit_code=1 ; \
 		$(SWIFT) test -c $(BUILD_CONFIGURATION) $(SWIFT_CONFIGURATION) --filter TestCLIVolumes || exit_code=1 ; \
 		$(SWIFT) test -c $(BUILD_CONFIGURATION) $(SWIFT_CONFIGURATION) --filter TestCLIKernelSet || exit_code=1 ; \
 		$(SWIFT) test -c $(BUILD_CONFIGURATION) $(SWIFT_CONFIGURATION) --filter TestCLIAnonymousVolumes || exit_code=1 ; \