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%TTIME64ARRAY Unit tests for arrow.array.Time64Array
% 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 tTime64Array < matlab.unittest.TestCase
properties
ArrowArrayConstructorFcn = @arrow.array.Time64Array.fromMATLAB
end
properties(TestParameter)
Unit = {arrow.type.TimeUnit.Microsecond, arrow.type.TimeUnit.Nanosecond}
end
methods (Test)
function Basic(tc)
times = seconds(1:4);
array = tc.ArrowArrayConstructorFcn(times);
tc.verifyInstanceOf(array, "arrow.array.Time64Array");
tc.verifyEqual(array.toMATLAB, times');
end
function TimeUnitDefaultValue(tc)
% Verify that the default value of "TimeUnit" is "Microsecond".
matlabTimes = seconds([1; ...
0.001; ...
2.004521; ...
3.1234564; ...
4.1234566; ...
5.000000123]);
arrowArray = tc.ArrowArrayConstructorFcn(matlabTimes);
tc.verifyEqual(arrowArray.Type.TimeUnit, arrow.type.TimeUnit.Microsecond);
tc.verifyEqual(arrowArray.toMATLAB(), ...
seconds([1;...
0.001; ...
2.004521; ...
3.123456; ...
4.123457; ...
5]));
end
function TypeIsTime64(tc)
times = seconds(1:4);
array = tc.ArrowArrayConstructorFcn(times);
tc.verifyTime64Type(array.Type, arrow.type.TimeUnit.Microsecond);
end
function SupportedTimeUnit(tc)
import arrow.type.TimeUnit
times = seconds(1:4);
array = tc.ArrowArrayConstructorFcn(times, TimeUnit="Microsecond");
tc.verifyTime64Type(array.Type, arrow.type.TimeUnit.Microsecond);
array = tc.ArrowArrayConstructorFcn(times, TimeUnit=TimeUnit.Microsecond);
tc.verifyTime64Type(array.Type, arrow.type.TimeUnit.Microsecond);
array = tc.ArrowArrayConstructorFcn(times, TimeUnit="Nanosecond");
tc.verifyTime64Type(array.Type, arrow.type.TimeUnit.Nanosecond);
array = tc.ArrowArrayConstructorFcn(times, TimeUnit=TimeUnit.Nanosecond);
tc.verifyTime64Type(array.Type, arrow.type.TimeUnit.Nanosecond);
end
function UnsupportedTimeUnitError(tc)
% Verify arrow.array.Time64Array.fromMATLAB() errors if
% supplied an unsupported TimeUnit (Second or Millisecond).
import arrow.type.TimeUnit
times = seconds(1:4);
fcn = @() tc.ArrowArrayConstructorFcn(times, TimeUnit="Second");
tc.verifyError(fcn, "arrow:validate:temporal:UnsupportedTime64TimeUnit");
fcn = @() tc.ArrowArrayConstructorFcn(times, TimeUnit=TimeUnit.Second);
tc.verifyError(fcn, "arrow:validate:temporal:UnsupportedTime64TimeUnit");
fcn = @() tc.ArrowArrayConstructorFcn(times, TimeUnit="Millisecond");
tc.verifyError(fcn, "arrow:validate:temporal:UnsupportedTime64TimeUnit");
fcn = @() tc.ArrowArrayConstructorFcn(times, TimeUnit=TimeUnit.Millisecond);
tc.verifyError(fcn, "arrow:validate:temporal:UnsupportedTime64TimeUnit");
end
function TestNumElements(testCase)
% Verify the NumElements property.
times = duration.empty(0, 1);
array = testCase.ArrowArrayConstructorFcn(times);
testCase.verifyEqual(array.NumElements, int64(0));
times = duration(1, 2, 3);
array = testCase.ArrowArrayConstructorFcn(times);
testCase.verifyEqual(array.NumElements, int64(1));
times = duration(1, 2, 3) + hours(0:4);
array = testCase.ArrowArrayConstructorFcn(times);
testCase.verifyEqual(array.NumElements, int64(5));
end
function TestNumNulls(testCase)
% Verify the NumNulls property.
% array1 has 0 null values.
dates = seconds(1:10);
array1 = testCase.ArrowArrayConstructorFcn(dates);
testCase.verifyEqual(array1.NumNulls, int64(0));
% array2 has 8 null values.
array2 = testCase.ArrowArrayConstructorFcn(dates, Valid=[1 2]);
testCase.verifyEqual(array2.NumNulls, int64(8));
end
function TestNumNullsNoSetter(testCase)
% Verify the NumNulls property is read-only.
data = seconds(1:10);
array = testCase.ArrowArrayConstructorFcn(data, Valid=[2 3]);
fcn = @() setfield(array, "NumNulls", 1);
testCase.verifyError(fcn, "MATLAB:class:SetProhibited");
end
function TestToMATLAB(testCase, Unit)
% Verify toMATLAB() round-trips the original duration array.
times = seconds([100 200 355 400]);
array = testCase.ArrowArrayConstructorFcn(times, TimeUnit=Unit);
values = toMATLAB(array);
testCase.verifyEqual(values, times');
end
function TestDuration(testCase, Unit)
% Verify duration() round-trips the original duration array.
times = seconds([100 200 355 400]);
array = testCase.ArrowArrayConstructorFcn(times, TimeUnit=Unit);
values = duration(array);
testCase.verifyEqual(values, times');
end
function TestValid(testCase, Unit)
% Verify the Valid property returns the expected logical vector.
times = seconds([100 200 NaN 355 NaN 400]);
array = testCase.ArrowArrayConstructorFcn(times, TimeUnit=Unit);
testCase.verifyEqual(array.Valid, [true; true; false; true; false; true]);
testCase.verifyEqual(toMATLAB(array), times');
testCase.verifyEqual(duration(array), times');
end
function InferNullsTrueNVPair(testCase, Unit)
% Verify arrow.array.Time64Array.fromMATLAB() behaves as
% expected when InferNulls=true is provided.
times = seconds([1 2 NaN 4 5 NaN 7]);
array = testCase.ArrowArrayConstructorFcn(times, InferNulls=true, TimeUnit=Unit);
expectedValid = [true; true; false; true; true; false; true];
testCase.verifyEqual(array.Valid, expectedValid);
testCase.verifyEqual(toMATLAB(array), times');
testCase.verifyEqual(duration(array), times');
end
function InferNullsFalseNVPair(testCase, Unit)
% Verify arrow.array.Time64Array.fromMATLAB() behaves as
% expected when InferNulls=false is provided.
times = seconds([1 2 NaN 4 5 NaN 7]);
array = testCase.ArrowArrayConstructorFcn(times, InferNulls=false, TimeUnit=Unit);
expectedValid = true([7 1]);
testCase.verifyEqual(array.Valid, expectedValid);
% If NaN durations were not considered null values, then they
% are treated like int64(0) values.
expectedTime = times';
expectedTime([3 6]) = 0;
testCase.verifyEqual(toMATLAB(array), expectedTime);
testCase.verifyEqual(duration(array), expectedTime);
end
function TestValidNVPair(testCase, Unit)
% Verify arrow.array.Time64Array.fromMATLAB() accepts the Valid
% nv-pair, and it behaves as expected.
times = seconds([1 2 NaN 4 5 NaN 7]);
% Supply the Valid name-value pair as vector of indices.
array = testCase.ArrowArrayConstructorFcn(times, TimeUnit=Unit, Valid=[1 2 3 5]);
testCase.verifyEqual(array.Valid, [true; true; true; false; true; false; false]);
expectedTimes = times';
expectedTimes(3) = 0;
expectedTimes([4 6 7]) = NaN;
testCase.verifyEqual(toMATLAB(array), expectedTimes);
% Supply the Valid name-value pair as a logical scalar.
array = testCase.ArrowArrayConstructorFcn(times, TimeUnit=Unit, Valid=false);
testCase.verifyEqual(array.Valid, false([7 1]));
expectedTimes(:) = NaN;
testCase.verifyEqual(toMATLAB(array), expectedTimes);
end
function EmptyDurationVector(testCase)
% Verify arrow.array.Time64Array.fromMATLAB() accepts any
% empty-shaped duration as input.
times = duration.empty(0, 0);
array = testCase.ArrowArrayConstructorFcn(times);
testCase.verifyEqual(array.NumElements, int64(0));
testCase.verifyEqual(array.Valid, logical.empty(0, 1));
testCase.verifyEqual(toMATLAB(array), duration.empty(0, 1));
% Test with an N-Dimensional empty array
times = duration.empty(0, 1, 0);
array = testCase.ArrowArrayConstructorFcn(times);
testCase.verifyEqual(array.NumElements, int64(0));
testCase.verifyEqual(array.Valid, logical.empty(0, 1));
testCase.verifyEqual(toMATLAB(array), duration.empty(0, 1));
end
function ErrorIfNonVector(testCase)
% Verify arrow.array.Time64Array.fromMATLAB() throws an error
% if the input provided is not a vector.
times = duration(200, 45, 34) + hours(0:11);
times = reshape(times, 2, 6);
fcn = @() testCase.ArrowArrayConstructorFcn(times);
testCase.verifyError(fcn, "arrow:array:InvalidShape");
times = reshape(times, 3, 2, 2);
fcn = @() testCase.ArrowArrayConstructorFcn(times);
testCase.verifyError(fcn, "arrow:array:InvalidShape");
end
function ErrorIfNonDuration(testCase)
% Verify arrow.array.Time64Array.fromMATLAB() throws an error
% if not given a duration as input.
dates = datetime(2023, 4, 6);
fcn = @() testCase.ArrowArrayConstructorFcn(dates);
testCase.verifyError(fcn, "arrow:array:InvalidType");
numbers = [1; 2; 3; 4];
fcn = @() testCase.ArrowArrayConstructorFcn(numbers);
testCase.verifyError(fcn, "arrow:array:InvalidType");
end
function MicrosecondPrecision(testCase)
% Verify microsecond precision when TimeUnit="Microsecond"
original = milliseconds(1.0033);
array = testCase.ArrowArrayConstructorFcn(original, TimeUnit="Microsecond");
expected = milliseconds(1.003);
testCase.verifyEqual(duration(array), expected);
end
function NanosecondPrecision(testCase)
% Verify nanosecond precision when TimeUnit="Nanosecond"
original = milliseconds(1.0030031);
array = testCase.ArrowArrayConstructorFcn(original, TimeUnit="Nanosecond");
expected = milliseconds(1.0030030);
testCase.verifyEqual(duration(array), expected);
end
function TestIsEqualTrue(tc, Unit)
% Verifies arrays are considered equal if:
%
% 1. Their Type properties are equal
% 2. They have the same number of elements (i.e. their NumElements properties are equal)
% 3. They have the same validity bitmap (i.e. their Valid properties are equal)
% 4. All corresponding valid elements have the same values
times1 = seconds([1 2 3 4]);
times2 = seconds([1 2 10 4]);
array1 = tc.ArrowArrayConstructorFcn(times1, TimeUnit=Unit, Valid=[1 2 4]);
array2 = tc.ArrowArrayConstructorFcn(times1, TimeUnit=Unit, Valid=[1 2 4]);
array3 = tc.ArrowArrayConstructorFcn(times2, TimeUnit=Unit, Valid=[1 2 4]);
tc.verifyTrue(isequal(array1, array2));
tc.verifyTrue(isequal(array1, array3));
% Test supplying more than two arrays to isequal
tc.verifyTrue(isequal(array1, array2, array3));
end
function TestIsEqualFalse(tc, Unit)
% Verify isequal returns false when expected.
times1 = seconds([1 2 3 4]);
times2 = seconds([1 1 2 3]);
times3 = seconds([1 2 3 4 5]);
array1 = tc.ArrowArrayConstructorFcn(times1, TimeUnit=Unit, Valid=[1 2 4]);
array2 = tc.ArrowArrayConstructorFcn(times1, TimeUnit=Unit, Valid=[1 4]);
array3 = tc.ArrowArrayConstructorFcn(times2, TimeUnit=Unit, Valid=[1 2 4]);
array4 = arrow.array([true false true false]);
array5 = tc.ArrowArrayConstructorFcn(times3, Valid=[1 2 4]);
% Their validity bitmaps are not equal
tc.verifyFalse(isequal(array1, array2));
% Not all corresponding valid elements are equal
tc.verifyFalse(isequal(array1, array3));
% Their Type properties are not equal
tc.verifyFalse(isequal(array1, array4));
% Their NumElements properties are not equal
tc.verifyFalse(isequal(array1, array5));
% Comparing an arrow.array.Array to a MATLAB double
tc.verifyFalse(isequal(array1, 1));
% Test supplying more than two arrays to isequal
tc.verifyFalse(isequal(array1, array1, array3, array4, array5));
end
function TestIsEqualFalseTimeUnitMismatch(tc)
% Verify two Time64Arrays are not considered equal if they have
% different TimeUnit values.
times1 = seconds([1 2 3 4]);
array1 = tc.ArrowArrayConstructorFcn(times1, TimeUnit="Nanosecond");
array2 = tc.ArrowArrayConstructorFcn(times1, TimeUnit="Microsecond");
% arrays are not equal
tc.verifyFalse(isequal(array1, array2));
end
function RoundTimeBySpecifiedTimeUnit(tc)
% Verify that the input parameter "TimeUnit" is used to specify
% the time resolution. The value is rounded off based on the
% specified "TimeUnit".
% TimeUnit="Microsecond"
matlabTimes = seconds([1.000001, ...
2.999999, ...
0.0002004, ...
0.0000035, ...
10.123456499, ...
9.999999543]);
arrowTimes = tc.ArrowArrayConstructorFcn(matlabTimes, TimeUnit="Microsecond");
tc.verifyEqual(arrowTimes.toMATLAB(), ...
seconds([1.000001, ...
2.999999, ...
0.0002, ...
0.000004, ...
10.123456, ...
10])', ...
'AbsTol',seconds(1e-14));
% TimeUnit="Nanosecond"
matlabTimes = seconds([1, ...
1.123, ...
1.12345, ...
1.123456, ...
1.1234567, ...
1.12345678, ...
1.123456789, ...
1.1234567894, ...
1.1234567895, ...
1.123456789009]);
arrowTimes = tc.ArrowArrayConstructorFcn(matlabTimes, TimeUnit="Nanosecond");
tc.verifyEqual(arrowTimes.toMATLAB(),...
seconds([1, ...
1.123, ...
1.12345, ...
1.123456, ...
1.1234567, ...
1.12345678, ...
1.123456789, ...
1.123456789, ...
1.123456790, ...
1.123456789])',...
'AbsTol',seconds(1e-15));
end
function TimeUnitIsReadOnly(tc)
% Verify that arrowArray.Type.TimeUnit cannot be changed.
matlabTimes = seconds([1.000001, 2.999999, 0.0002004]);
arrowArray = tc.ArrowArrayConstructorFcn(matlabTimes);
tc.verifyError(@()setfield(arrowArray.Type,"TimeUnit", "Nanosecond"),'MATLAB:class:SetProhibited');
end
end
methods
function verifyTime64Type(testCase, actual, expectedTimeUnit)
testCase.verifyInstanceOf(actual, "arrow.type.Time64Type");
testCase.verifyEqual(actual.ID, arrow.type.ID.Time64);
testCase.verifyEqual(actual.TimeUnit, expectedTimeUnit);
end
end
end
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