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test: add tests for math/tools/unary #9434

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235 changes: 234 additions & 1 deletion lib/node_modules/@stdlib/math/tools/unary/test/test.js
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Original file line number Diff line number Diff line change
Expand Up @@ -21,6 +21,7 @@
// MODULES //

var tape = require( 'tape' );
var unary = require( '@stdlib/ndarray/base/unary' );
var factory = require( './../lib' );


Expand All @@ -32,4 +33,236 @@ tape( 'main export is a function', function test( t ) {
t.end();
});

// FIXME: add tests
tape( 'the function throws an error if the first argument is not a function', function test( t ) {
var values;
var i;

values = [
'5',
5,
NaN,
true,
false,
null,
void 0,
[],
{}
];

for ( i = 0; i < values.length; i++ ) {
t.throws( badValue( values[ i ] ), TypeError, 'throws an error when provided ' + values[ i ] );
}
t.end();

function badValue( value ) {
return function badValue() {
factory( value, [ [ 'float64' ] ], [ 'float64' ], {
'output': 'real_and_generic',
'casting': 'none'
});
};
}
});

tape( 'the function throws an error if the second argument is not an array-like object', function test( t ) {
var values;
var i;

values = [
'5',
5,
NaN,
true,
false,
null,
void 0,
{},
unary
];

for ( i = 0; i < values.length; i++ ) {
t.throws( badValue( values[ i ] ), TypeError, 'throws an error when provided ' + values[ i ] );
}
t.end();

function badValue( value ) {
return function badValue() {
factory( unary, value, [ 'float64' ], {
'output': 'real_and_generic',
'casting': 'none'
});
};
}
});

tape( 'the function throws an error if the second argument does not contain arrays of data types', function test( t ) {
var values;
var i;

values = [
[ [] ],
[ [ 'foo' ] ],
[ [ 1, 2, 3 ] ],
[ [ 'float64', 1 ] ],
[ 'float64' ]
];

for ( i = 0; i < values.length; i++ ) {
t.throws( badValue( values[ i ] ), TypeError, 'throws an error when provided ' + values[ i ] );
}
t.end();

function badValue( value ) {
return function badValue() {
factory( unary, value, [ 'float64' ], {
'output': 'real_and_generic',
'casting': 'none'
});
};
}
});

tape( 'the function throws an error if the third argument is not an array of data types', function test( t ) {
var values;
var i;

values = [
'5',
5,
NaN,
true,
false,
null,
void 0,
{},
[],
[ 'foo' ],
[ 1, 2, 3 ],
[ 'float64', 1 ],
unary
];

for ( i = 0; i < values.length; i++ ) {
t.throws( badValue( values[ i ] ), TypeError, 'throws an error when provided ' + values[ i ] );
}
t.end();

function badValue( value ) {
return function badValue() {
factory( unary, [ [ 'float64' ] ], value, {
'output': 'real_and_generic',
'casting': 'none'
});
};
}
});

tape( 'the function throws an error if the fourth argument is not an object', function test( t ) {
var values;
var i;

values = [
'5',
5,
NaN,
true,
false,
null,
void 0,
[],
unary
];

for ( i = 0; i < values.length; i++ ) {
t.throws( badValue( values[ i ] ), TypeError, 'throws an error when provided ' + values[ i ] );
}
t.end();

function badValue( value ) {
return function badValue() {
factory( unary, [ [ 'float64' ] ], [ 'float64' ], value );
};
}
});

tape( 'the function throws an error if the fourth argument does not have a valid output data type policy', function test( t ) {
var values;
var i;

values = [
'foo',
5,
NaN,
true,
false,
null,
void 0,
[],
{},
unary
];

for ( i = 0; i < values.length; i++ ) {
t.throws( badValue( values[ i ] ), TypeError, 'throws an error when provided ' + values[ i ] );
}
t.end();

function badValue( value ) {
return function badValue() {
factory( unary, [ [ 'float64' ] ], [ 'float64' ], {
'output': value,
'casting': 'none'
});
};
}
});

tape( 'the function throws an error if the fourth argument does not have a valid casting policy', function test( t ) {
var values;
var i;

values = [
'foo',
5,
NaN,
true,
false,
null,
void 0,
[],
{},
unary
];

for ( i = 0; i < values.length; i++ ) {
t.throws( badValue( values[ i ] ), TypeError, 'throws an error when provided ' + values[ i ] );
}
t.end();

function badValue( value ) {
return function badValue() {
factory( unary, [ [ 'float64' ] ], [ 'float64' ], {
'output': 'real_and_generic',
'casting': value
});
};
}
});

tape( 'the function returns a function', function test( t ) {
var fcn = factory( unary, [ [ 'float64' ] ], [ 'float64' ], {
'output': 'real_and_generic',
'casting': 'none'
});
t.strictEqual( typeof fcn, 'function', 'returns a function' );
t.end();
});

tape( 'the returned function has an `assign` method', function test( t ) {
var fcn = factory( unary, [ [ 'float64' ] ], [ 'float64' ], {
'output': 'real_and_generic',
'casting': 'none'
});
t.strictEqual( typeof fcn.assign, 'function', 'has an assign method' );
t.end();
});
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