StackGenVis: Alignment of Data, Algorithms, and Models for Stacking Ensemble Learning Using Performance Metrics https://doi.org/10.1109/TVCG.2020.3030352
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StackGenVis/frontend/node_modules/coalescy/specs/coalescy.js

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describe( 'coalescy', function () {
beforeEach( function () {
this.coalesce = require( '../index' );
} );
it( 'should return the first non null value', function () {
var result = this.coalesce( null, [] );
expect( result ).to.deep.equal( [] );
result = this.coalesce( null, {} );
expect( result ).to.deep.equal( {} );
result = this.coalesce( null, [], {} );
expect( result ).to.deep.equal( [] );
result = this.coalesce( null, undefined, 0, {} );
expect( result ).to.equal( 0 );
var a = null,
b,
c = 0,
d = 1;
result = this.coalesce( a, b, c, d );
expect( result ).to.equal( 0 );
} );
it( 'should return null when no arguments are passed', function () {
var result = this.coalesce();
expect( result ).to.equal( null );
} );
} );