xhttp.AmzObjectAttributes: []string{"test1,test2"},
			},
			wantObjectAttrs: map[string]struct{}{
				"test1": {}, "test2": {},
			},
		},
		{
			name: "multiple header lines with some duplicates",
			headers: http.Header{
				xhttp.AmzObjectAttributes: []string{"test1,test2", "test3,test4", "test4,test3"},
			},
			wantObjectAttrs: map[string]struct{}{
				"test1": {}, "test2": {}, "test3": {}, "test4": {},
			},
		},

        activation = new ProfileActivation();
        performProfileActivation(parser.parse(options, new String[] {"-P", "test1,+test2,?test3,+?test4"}), activation);
        assertThat(activation.getRequiredActiveProfileIds(), containsInAnyOrder("test1", "test2"));
        assertThat(activation.getOptionalActiveProfileIds(), containsInAnyOrder("test3", "test4"));

        activation = new ProfileActivation();

                resultMap.put("index", index);
                resultMap.put("query", builder.toString());
                return OptionalEntity.of(Map.of("_id", "001", "title", "test1", "content", "test2"));
            }
        };
        ComponentUtil.register(client, "searchEngineClient");

        final Map<String, Object> document = indexingHelper.getDocument(client, "001", new String[] { "title", "content" });

          RangeMap<Integer, Integer> test = TreeRangeMap.create();
          RangeMap<Integer, Integer> test2 = TreeRangeMap.create();
          // put range2 and range3 into test2, and then put test2 into test
          test.put(range1, 1);
          test2.put(range2, 2);
          test2.put(range3, 3);
          test.putAll(test2);
          verify(model, test);
        }
      }
    }
  }

		wantErr bool
	}{
		{
			name: "test1",
			b:    PrefixTemp{},
			args: args{
				yamlStr: `
prefix: "foo"
`,
			},
			want:    []string{"foo"},
			wantErr: false,
		},
		{
			name: "test2",
			b:    PrefixTemp{},
			args: args{
				yamlStr: `
prefix:
  - "foo"
  - "bar"
`,
			},
			want: []string{"foo", "bar"},
		},
	}
	for _, tt := range tests {

		}},
	}, {
		// GNU tar file with atime and ctime fields set.
		// Created with the GNU tar v1.27.1.
		//	tar --incremental -S -cvf gnu-incremental.tar test2
		file: "testdata/gnu-incremental.tar",
		headers: []*Header{{
			Name:       "test2/",
			Mode:       16877,
			Uid:        1000,
			Gid:        1000,
			Size:       14,
			ModTime:    time.Unix(1441973427, 0),
			Typeflag:   'D',

For example, to query API metrics for buckets `test1` and `test2`, make a scrape request to `/minio/metrics/v3/api/bucket?buckets=test1,test2`. 

### List Available Metrics

	return 10, nil
}

func TestWriterReadFromMustSetUnderlyingError(t *testing.T) {
	var wr = NewWriter(writerWithReadFromError{})
	if _, err := wr.ReadFrom(strings.NewReader("test2")); err == nil {
		t.Fatal("expected ReadFrom returns error, got nil")
	}
	if _, err := wr.Write([]byte("123")); err == nil {
		t.Fatal("expected Write returns error, got nil")
	}
}