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# 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.
x <- iconv("Veitingasta�ir", to = "latin1")
df <- tibble::tibble(
chr = x,
fct = as.factor(x)
)
names(df) <- iconv(paste(x, names(df), sep = "_"), to = "latin1")
df_struct <- tibble::tibble(a = df)
raw_schema <- list(utf8(), dictionary(int8(), utf8()))
names(raw_schema) <- names(df)
# Confirm setup
expect_identical(Encoding(x), "latin1")
expect_identical(Encoding(names(df)), c("latin1", "latin1"))
expect_identical(Encoding(df[[1]]), "latin1")
expect_identical(Encoding(levels(df[[2]])), "latin1")
# Array
expect_identical(as.vector(Array$create(x)), x)
# struct
expect_identical(as.vector(Array$create(df)), df)
# ChunkedArray
expect_identical(as.vector(ChunkedArray$create(x)), x)
# struct
expect_identical(as.vector(ChunkedArray$create(df)), df)
# Table (including field name)
expect_identical(as.data.frame(Table$create(df)), df)
expect_identical(as.data.frame(Table$create(df_struct)), df_struct)
# RecordBatch
expect_identical(as.data.frame(record_batch(df)), df)
expect_identical(as.data.frame(record_batch(df_struct)), df_struct)
# Schema field name
df_schema <- do.call(schema, raw_schema)
expect_identical(names(df_schema), names(df))
df_struct_schema <- schema(a = do.call(struct, raw_schema))
# StructType doesn't expose names (in C++)
# expect_identical(names(df_struct_schema$a), names(df))
# Create table/batch with schema
expect_identical(as.data.frame(Table$create(df, schema = df_schema)), df)
expect_identical(as.data.frame(Table$create(df_struct, schema = df_struct_schema)), df_struct)
expect_identical(as.data.frame(record_batch(df, schema = df_schema)), df)
expect_identical(as.data.frame(record_batch(df_struct, schema = df_struct_schema)), df_struct)
# Serialization
feather_file <- tempfile()
write_feather(df_struct, feather_file)
expect_identical(read_feather(feather_file), df_struct)
if (arrow_with_parquet()) {
parquet_file <- tempfile()
write_parquet(df, parquet_file) # Parquet doesn't yet support nested types
expect_identical(read_parquet(parquet_file), df)
}
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