pgovind commented on a change in pull request #8348:
URL: https://github.com/apache/arrow/pull/8348#discussion_r499823191
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File path: csharp/test/Apache.Arrow.Tests/ArrayBuilderTests.cs
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@@ -73,6 +73,67 @@ public void StringArrayBuilderHandlesNullsAndEmptyStrings()
Assert.Equal(string.Empty, stringArray.GetString(3));
}
+ [Fact]
+ public void TestStructArray()
+ {
+ // The following can be improved with a Builder class for
StructArray.
+ List<Field> fields = new List<Field>();
+ Field.Builder fieldBuilder = new Field.Builder();
+
fields.Add(fieldBuilder.Name("Strings").DataType(StringType.Default).Nullable(true).Build());
+ fieldBuilder = new Field.Builder();
+
fields.Add(fieldBuilder.Name("Ints").DataType(Int32Type.Default).Nullable(true).Build());
+ StructType structType = new StructType(fields);
+
+ StringArray.Builder stringBuilder = new StringArray.Builder();
+ StringArray stringArray =
stringBuilder.Append("joe").AppendNull().AppendNull().Append("mark").Build();
+ Int32Array.Builder intBuilder = new Int32Array.Builder();
+ Int32Array intArray =
intBuilder.Append(1).Append(2).AppendNull().Append(4).Build();
+ List<Array> arrays = new List<Array>();
+ arrays.Add(stringArray);
+ arrays.Add(intArray);
+
+ ArrowBuffer.BitmapBuilder nullBitmap = new
ArrowBuffer.BitmapBuilder();
+ var nullBitmapBuffer =
nullBitmap.Append(true).Append(true).Append(false).Append(true).Build();
+ StructArray structs = new StructArray(structType, 4, arrays,
nullBitmapBuffer, 1);
+
+ Assert.Equal(4, structs.Length);
Review comment:
Replace the following asserts with ArrayComparer
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