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% TSTRUCTTYPE Unit tests for arrow.type.StructType
% 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.
classdef tStructType < matlab.unittest.TestCase
properties (Constant)
Field1 = arrow.field("A", arrow.float64())
Field2 = arrow.field("C", arrow.boolean())
Field3 = arrow.field("B", arrow.timestamp(TimeUnit="Microsecond", TimeZone="America/New_York"));
end
methods (Test)
function Basic(tc)
% Verify arrow.struct() returns an arrow.type.StructType
% object.
type = arrow.struct(tc.Field1);
className = string(class(type));
tc.verifyEqual(className, "arrow.type.StructType");
tc.verifyEqual(type.ID, arrow.type.ID.Struct);
end
function TooFewInputsError(tc)
% Verify arrow.struct() errors if given zero input arguments.
fcn = @() arrow.struct();
tc.verifyError(fcn, "arrow:struct:TooFewInputs");
end
function InvalidInputTypeError(tc)
% Verify arrow.struct() errors if any one of the input
% arguments is not an arrow.type.Field object.
fcn = @() arrow.struct(1);
tc.verifyError(fcn, "MATLAB:validation:UnableToConvert");
end
function EmptyFieldError(tc)
% Verify arrow.struct() errors if given an empty
% arrow.type.Field array as one of its inputs.
fcn = @() arrow.struct(tc.Field1, arrow.type.Field.empty(0, 0));
tc.verifyError(fcn, "MATLAB:validators:mustBeNonempty");
end
function NumFieldsGetter(tc)
% Verify the NumFields getter returns the expected value.
type = arrow.struct(tc.Field1);
tc.verifyEqual(type.NumFields, int32(1));
type = arrow.struct(tc.Field1, tc.Field2);
tc.verifyEqual(type.NumFields, int32(2));
type = arrow.struct(tc.Field1, tc.Field2, tc.Field3);
tc.verifyEqual(type.NumFields, int32(3));
end
function NumFieldsNoSetter(tc)
% Verify the NumFields property is not settable.
type = arrow.struct(tc.Field1);
fcn = @() setfield(type, "NumFields", 20);
tc.verifyError(fcn, "MATLAB:class:SetProhibited");
end
function FieldsGetter(tc)
% Verify the Fields getter returns the expected
% arrow.type.Field array.
type = arrow.struct(tc.Field1, tc.Field2, tc.Field3);
actual = type.Fields;
expected = [tc.Field1, tc.Field2, tc.Field3];
tc.verifyEqual(actual, expected);
end
function FieldsNoSetter(tc)
% Verify the Fields property is not settable.
type = arrow.struct(tc.Field1, tc.Field2, tc.Field3);
fcn = @() setfield(type, "Fields", tc.Field3);
tc.verifyError(fcn, "MATLAB:class:SetProhibited");
end
function IDGetter(tc)
% Verify the ID getter returns the expected enum value.
type = arrow.struct(tc.Field1);
actual = type.ID;
expected = arrow.type.ID.Struct;
tc.verifyEqual(actual, expected);
end
function IDNoSetter(tc)
% Verify the ID property is not settable.
type = arrow.struct(tc.Field1);
fcn = @() setfield(type, "ID", arrow.type.ID.Boolean);
tc.verifyError(fcn, "MATLAB:class:SetProhibited");
end
function FieldMethod(tc)
% Verify the field method returns the expected arrow.type.Field
% with respect to the index provided.
type = arrow.struct(tc.Field1, tc.Field2, tc.Field3);
% Extract the 1st field
actual1 = type.field(1);
expected1 = tc.Field1;
tc.verifyEqual(actual1, expected1);
% Extract the 2nd field
actual2 = type.field(2);
expected2 = tc.Field2;
tc.verifyEqual(actual2, expected2);
% Extract the 3rd field
actual3 = type.field(3);
expected3 = tc.Field3;
tc.verifyEqual(actual3, expected3);
end
function FieldIndexOutOfRangeError(tc)
% Verify field() throws an error if provided an index that
% exceeds NumFields.
type = arrow.struct(tc.Field1, tc.Field2, tc.Field3);
fcn = @() type.field(100);
tc.verifyError(fcn, "arrow:index:OutOfRange");
end
function FieldIndexNonScalarError(tc)
% Verify field() throws an error if provided a nonscalar array
% of indices.
type = arrow.struct(tc.Field1, tc.Field2, tc.Field3);
fcn = @() type.field([1 2]);
tc.verifyError(fcn, "arrow:badsubscript:NonScalar");
end
function FieldIndexNonNumberError(tc)
% Verify field() throws an error if not provided a number as
% the index.
type = arrow.struct(tc.Field1, tc.Field2, tc.Field3);
fcn = @() type.field("A");
tc.verifyError(fcn, "arrow:badsubscript:NonNumeric");
end
function IsEqualTrue(tc)
% Verify two StructTypes are considered equal if their Fields
% properties are equal.
type1 = arrow.struct(tc.Field1, tc.Field2, tc.Field3);
type2 = arrow.struct(tc.Field1, tc.Field2, tc.Field3);
tc.verifyTrue(isequal(type1, type2));
tc.verifyTrue(isequal(type1, type2, type2, type1));
% Non-scalar arrow.type.StructType arrays
type3 = [type1 type2];
type4 = [type1 type2];
tc.verifyTrue(isequal(type3, type4));
end
function IsEqualFalse(tc)
% Verify isequal returns false when expected.
type1 = arrow.struct(tc.Field1, tc.Field2, tc.Field3);
type2 = arrow.struct(tc.Field1, tc.Field2);
type3 = arrow.struct(tc.Field1, tc.Field3, tc.Field2);
% Fields properties have different lengths
tc.verifyFalse(isequal(type1, type2));
% The corresponding elements in the Fields arrays are not equal
tc.verifyFalse(isequal(type1, type3));
% Non-scalar arrow.type.StructType arrays
type4 = [type1 type2];
type5 = [type1; type2];
type6 = [type1 type2];
type7 = [type1 type3];
tc.verifyFalse(isequal(type4, type5));
tc.verifyFalse(isequal(type6, type7));
end
end
end
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