1 files changed, 76 insertions, 0 deletions
diff --git a/src/arrow/r/tests/testthat/latin1.R b/src/arrow/r/tests/testthat/latin1.R
new file mode 100644
index 000000000..150192d31
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+++ b/src/arrow/r/tests/testthat/latin1.R
@@ -0,0 +1,76 @@
+# 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("Veitingastaðir", 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)
+}