OpenSearch/rest-api-spec/test/update/10_doc.yaml

---
"Partial document":

  - do:
      index:
          index:  test_1
          type:   test
          id:     1
          body:
              foo:    bar
              count:  1
              nested: { one: 1, two: 2 }

  - do:
      update:
          index:  test_1
          type:   test
          id:     1
          body:
            doc:
                foo:    baz
                nested:
                    one:  3

  - match: { _index:   test_1 }
  - match: { _type:    test   }
  - match: { _id:      "1"    }
  - match: { _version: 2      }

  - do:
      get:
          index:  test_1
          type:   test
          id:     1

  - match: { _source.foo:        baz }
  - match: { _source.count:      1   }
  - match: { _source.nested.one: 3   }
  - match: { _source.nested.two: 2   }