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Diffstat (limited to '')
| -rw-r--r-- | src/arrow/r/tests/testthat/test-array-data.R | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/src/arrow/r/tests/testthat/test-array-data.R b/src/arrow/r/tests/testthat/test-array-data.R new file mode 100644 index 000000000..05d070d8a --- /dev/null +++ b/src/arrow/r/tests/testthat/test-array-data.R @@ -0,0 +1,33 @@ +# Licensed to the Apache Software Foundation (ASF) under one +# or more contributor license agreements. See the NOTICE file +# distributed with this work for additional information +# regarding copyright ownership. The ASF licenses this file +# to you 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 +# +# http://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. + +test_that("string vectors with only empty strings and nulls don't allocate a data buffer (ARROW-3693)", { + a <- Array$create("") + expect_equal(a$length(), 1L) + + buffers <- a$data()$buffers + + # No nulls + expect_equal(buffers[[1]], NULL) + + # Offsets has 2 elements + expect_equal(buffers[[2]]$size, 8L) + + # As per ARROW-2744, values buffer should preferably be non-null. + expect_equal(buffers[[3]]$size, 0L) + expect_equal(buffers[[3]]$capacity, 0L) +}) |