fn test_main_without_current()

in crates/iceberg/src/spec/table_metadata.rs [1851:1939]

• 88 lines of code
• 1 McCabe index (conditional complexity)

    fn test_main_without_current() {
        let data = r#"
        {
            "format-version" : 2,
            "table-uuid": "fb072c92-a02b-11e9-ae9c-1bb7bc9eca94",
            "location": "s3://b/wh/data.db/table",
            "last-sequence-number" : 1,
            "last-updated-ms": 1515100955770,
            "last-column-id": 1,
            "schemas": [
                {
                    "schema-id" : 1,
                    "type" : "struct",
                    "fields" :[
                        {
                            "id": 1,
                            "name": "struct_name",
                            "required": true,
                            "type": "fixed[1]"
                        },
                        {
                            "id": 4,
                            "name": "ts",
                            "required": true,
                            "type": "timestamp"
                        }
                    ]
                }
            ],
            "current-schema-id" : 1,
            "partition-specs": [
                {
                    "spec-id": 0,
                    "fields": [
                        {
                            "source-id": 4,
                            "field-id": 1000,
                            "name": "ts_day",
                            "transform": "day"
                        }
                    ]
                }
            ],
            "default-spec-id": 0,
            "last-partition-id": 1000,
            "properties": {
                "commit.retry.num-retries": "1"
            },
            "metadata-log": [
                {
                    "metadata-file": "s3://bucket/.../v1.json",
                    "timestamp-ms": 1515100
                }
            ],
            "sort-orders": [
                {
                "order-id": 0,
                "fields": []
                }
            ],
            "default-sort-order-id": 0,
            "refs" : {
              "main" : {
                "snapshot-id" : 1,
                "type" : "branch"
              }
            },
            "snapshots" : [ {
              "snapshot-id" : 1,
              "timestamp-ms" : 1662532818843,
              "sequence-number" : 0,
              "summary" : {
                "operation" : "append",
                "spark.app.id" : "local-1662532784305",
                "added-data-files" : "4",
                "added-records" : "4",
                "added-files-size" : "6001"
              },
              "manifest-list" : "/home/iceberg/warehouse/nyc/taxis/metadata/snap-638933773299822130-1-7e6760f0-4f6c-4b23-b907-0a5a174e3863.avro",
              "schema-id" : 0
            } ]
        }
    "#;

        let err = serde_json::from_str::<TableMetadata>(data).unwrap_err();
        assert!(err
            .to_string()
            .contains("Current snapshot is not set, but main branch exists"));
    }