1 files changed, 67 insertions, 0 deletions
diff --git a/src/arrow/r/tests/testthat/test-field.R b/src/arrow/r/tests/testthat/test-field.R
new file mode 100644
index 000000000..1be36c064
--- /dev/null
+++ b/src/arrow/r/tests/testthat/test-field.R
@@ -0,0 +1,67 @@
+# 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("field() factory", {
+  x <- field("x", int32())
+  expect_equal(x$type, int32())
+  expect_equal(x$name, "x")
+  expect_true(x$nullable)
+  expect_true(x == x)
+  expect_false(x == field("x", int64()))
+})
+
+test_that("Field with nullable values", {
+  x <- field("x", int32(), nullable = FALSE)
+  expect_equal(x$type, int32())
+  expect_false(x$nullable)
+  expect_true(x == x)
+  expect_false(x == field("x", int32()))
+})
+
+test_that("Field validation", {
+  expect_error(schema(b = 32), "b must be a DataType, not numeric")
+})
+
+test_that("Print method for field", {
+  expect_output(print(field("x", int32())), "Field\nx: int32")
+  expect_output(
+    print(field("zz", dictionary())),
+    "Field\nzz: dictionary<values=string, indices=int32>"
+  )
+
+  expect_output(
+    print(field("x", int32(), nullable = FALSE)),
+    "Field\nx: int32 not null"
+  )
+
+})
+
+test_that("Field to C-interface", {
+  field <- field("x", time32("s"))
+
+  # export the field via the C-interface
+  ptr <- allocate_arrow_schema()
+  field$export_to_c(ptr)
+
+  # then import it and check that the roundtripped value is the same
+  circle <- Field$import_from_c(ptr)
+  expect_equal(circle, field)
+
+  # must clean up the pointer or we leak
+  delete_arrow_schema(ptr)
+})