defineSuite([
        'Core/PolygonOutlineGeometry',
        'Core/arrayFill',
        'Core/BoundingSphere',
        'Core/Cartesian3',
        'Core/Ellipsoid',
        'Core/GeometryOffsetAttribute',
        'Core/Math',
        'Specs/createPackableSpecs'
    ], function(
        PolygonOutlineGeometry,
        arrayFill,
        BoundingSphere,
        Cartesian3,
        Ellipsoid,
        GeometryOffsetAttribute,
        CesiumMath,
        createPackableSpecs) {
    'use strict';

    it('throws without hierarchy', function() {
        expect(function() {
            return new PolygonOutlineGeometry();
        }).toThrowDeveloperError();
    });

    it('throws with height when perPositionHeight is true', function() {
        expect(function() {
            return new PolygonOutlineGeometry({
                height: 30,
                perPositionHeight: true
            });
        }).toThrowDeveloperError();
    });

    it('throws without positions', function() {
        expect(function() {
            return PolygonOutlineGeometry.fromPositions();
        }).toThrowDeveloperError();
    });

    it('returns undefined with less than three positions', function() {
        expect(PolygonOutlineGeometry.createGeometry(PolygonOutlineGeometry.fromPositions({
            positions : [new Cartesian3()]
        }))).toBeUndefined();
    });

    it('returns undefined with polygon hierarchy with less than three positions', function() {
        expect(PolygonOutlineGeometry.createGeometry(new PolygonOutlineGeometry({
            polygonHierarchy : {
                positions : [Cartesian3.fromDegrees(0, 0)]
            }
        }))).toBeUndefined();
    });

    it('createGeometry returns undefined due to duplicate positions', function() {
        var geometry = PolygonOutlineGeometry.createGeometry(PolygonOutlineGeometry.fromPositions({
            positions : Cartesian3.fromDegreesArray([
                0.0, 0.0,
                0.0, 0.0,
                0.0, 0.0
            ])
        }));
        expect(geometry).toBeUndefined();
    });

    it('createGeometry returns undefined due to duplicate positions extruded', function() {
        var geometry = PolygonOutlineGeometry.createGeometry(PolygonOutlineGeometry.fromPositions({
            positions : Cartesian3.fromDegreesArray([
                0.0, 0.0,
                0.0, 0.0,
                0.0, 0.0
            ]),
            extrudedHeight: 2
        }));
        expect(geometry).toBeUndefined();
    });

    it('createGeometry returns undefined due to duplicate hierarchy positions', function() {
        var hierarchy = {
                positions : Cartesian3.fromDegreesArray([
                    1.0, 1.0,
                    1.0, 1.0,
                    1.0, 1.0
                ]),
                holes : [{
                    positions : Cartesian3.fromDegreesArray([
                        0.0, 0.0,
                        0.0, 0.0,
                        0.0, 0.0
                    ])
                }]
        };

        var geometry = PolygonOutlineGeometry.createGeometry(new PolygonOutlineGeometry({ polygonHierarchy : hierarchy }));
        expect(geometry).toBeUndefined();
    });

    it('createGeometry returns undefined due to duplicate hierarchy positions with different heights', function() {
        var hierarchy = {
            positions : Cartesian3.fromDegreesArrayHeights([
                1.0, 1.0, 10.0,
                1.0, 1.0, 20.0,
                1.0, 1.0, 30.0
            ]),
            holes : [{
                positions : Cartesian3.fromDegreesArrayHeights([
                    0.0, 0.0, 10.0,
                    0.0, 0.0, 20.0,
                    0.0, 0.0, 30.0
                ])
            }]
        };

        var geometry = PolygonOutlineGeometry.createGeometry(new PolygonOutlineGeometry({ polygonHierarchy : hierarchy }));
        expect(geometry).toBeUndefined();
    });

    it('createGeometry returns geometry if duplicate hierarchy positions with different heights and perPositionHeight is true', function() {
        var hierarchy = {
            positions : Cartesian3.fromDegreesArrayHeights([
                1.0, 1.0, 10.0,
                1.0, 1.0, 20.0,
                1.0, 1.0, 30.0
            ]),
            holes : [{
                positions : Cartesian3.fromDegreesArrayHeights([
                    0.0, 0.0, 10.0,
                    0.0, 0.0, 20.0,
                    0.0, 0.0, 30.0
                ])
            }]
        };

        var geometry = PolygonOutlineGeometry.createGeometry(new PolygonOutlineGeometry({ polygonHierarchy : hierarchy, perPositionHeight: true }));
        expect(geometry).toBeDefined();
    });

    it('computes positions', function() {
        var p = PolygonOutlineGeometry.createGeometry(PolygonOutlineGeometry.fromPositions({
            positions : Cartesian3.fromDegreesArray([
                -1.0, -1.0,
                1.0, -1.0,
                1.0, 1.0,
                -1.0, 1.0
            ])
        }));

        expect(p.attributes.position.values.length).toEqual(8 * 3);
        expect(p.indices.length).toEqual(8 * 2);
    });

    it('computes positions with per position heights', function() {
        var ellipsoid = Ellipsoid.WGS84;
        var height = 100.0;
        var positions = Cartesian3.fromDegreesArrayHeights([
           -1.0, -1.0, height,
           1.0, -1.0, 0.0,
           1.0, 1.0, 0.0,
           -1.0, 1.0, 0.0
       ]);
        var p = PolygonOutlineGeometry.createGeometry(PolygonOutlineGeometry.fromPositions({
            positions : positions,
            perPositionHeight : true
        }));

        expect(ellipsoid.cartesianToCartographic(Cartesian3.fromArray(p.attributes.position.values, 0)).height).toEqualEpsilon(height, CesiumMath.EPSILON6);
        expect(ellipsoid.cartesianToCartographic(Cartesian3.fromArray(p.attributes.position.values, 3)).height).toEqualEpsilon(0, CesiumMath.EPSILON6);
    });

    it('uses correct value with extrudedHeight and perPositionHeight', function() {
        var ellipsoid = Ellipsoid.WGS84;
        var maxHeight = 100.0;
        var minHeight = 60.0;
        var extrudedHeight = 50.0;
        var positions = Cartesian3.fromDegreesArrayHeights([
            -1.0, -1.0, maxHeight,
            1.0, -1.0, minHeight,
            1.0, 1.0, minHeight,
            -1.0, 1.0, minHeight
        ]);
        var p = PolygonOutlineGeometry.createGeometry(PolygonOutlineGeometry.fromPositions({
            positions : positions,
            perPositionHeight : true,
            extrudedHeight: extrudedHeight
        }));

        expect(ellipsoid.cartesianToCartographic(Cartesian3.fromArray(p.attributes.position.values, 0)).height).toEqualEpsilon(maxHeight, CesiumMath.EPSILON6);
        expect(ellipsoid.cartesianToCartographic(Cartesian3.fromArray(p.attributes.position.values, 3)).height).toEqualEpsilon(minHeight, CesiumMath.EPSILON6);
        expect(ellipsoid.cartesianToCartographic(Cartesian3.fromArray(p.attributes.position.values, 24)).height).toEqualEpsilon(extrudedHeight, CesiumMath.EPSILON6);
    });

    it('creates a polygon from hierarchy', function() {
        var hierarchy = {
            positions : Cartesian3.fromDegreesArray([
                -124.0, 35.0,
                -110.0, 35.0,
                -110.0, 40.0,
                -124.0, 40.0
            ]),
            holes : [{
                positions : Cartesian3.fromDegreesArray([
                    -122.0, 36.0,
                    -122.0, 39.0,
                    -112.0, 39.0,
                    -112.0, 36.0
                ]),
                holes : [{
                    positions : Cartesian3.fromDegreesArray([
                        -120.0, 36.5,
                        -114.0, 36.5,
                        -114.0, 38.5,
                        -120.0, 38.5
                    ])
                }]
            }]
        };

        var p = PolygonOutlineGeometry.createGeometry(new PolygonOutlineGeometry({
            polygonHierarchy : hierarchy,
            granularity : CesiumMath.PI_OVER_THREE
        }));

        expect(p.attributes.position.values.length).toEqual(12 * 3); // 4 corners * 3 rectangles
        expect(p.indices.length).toEqual(12 * 2);
    });

    it('creates a polygon from clockwise hierarchy', function() {
        var hierarchy = {
            positions : Cartesian3.fromDegreesArray([
                -124.0, 35.0,
                -124.0, 40.0,
                -110.0, 40.0,
                -110.0, 35.0
            ]),
            holes : [{
                positions : Cartesian3.fromDegreesArray([
                    -122.0, 36.0,
                    -112.0, 36.0,
                    -112.0, 39.0,
                    -122.0, 39.0
                ]),
                holes : [{
                    positions : Cartesian3.fromDegreesArray([
                        -120.0, 36.5,
                        -120.0, 38.5,
                        -114.0, 38.5,
                        -114.0, 36.5
                    ])
                }]
            }]
        };

        var p = PolygonOutlineGeometry.createGeometry(new PolygonOutlineGeometry({
            polygonHierarchy : hierarchy,
            granularity : CesiumMath.PI_OVER_THREE
        }));

        expect(p.attributes.position.values.length).toEqual(12 * 3);
        expect(p.indices.length).toEqual(12 * 2);
    });

    it('doesn\'t reverse clockwise input array', function() {
        var p = Cartesian3.fromDegreesArray([
                                             -124.0, 35.0,
                                             -124.0, 40.0,
                                             -110.0, 40.0,
                                             -110.0, 35.0
                                         ]);
        var h1 = Cartesian3.fromDegreesArray([
                                              -122.0, 36.0,
                                              -112.0, 36.0,
                                              -112.0, 39.0,
                                              -122.0, 39.0
                                          ]);
        var h2 = Cartesian3.fromDegreesArray([
                                              -120.0, 36.5,
                                              -120.0, 38.5,
                                              -114.0, 38.5,
                                              -114.0, 36.5
                                          ]);
        var hierarchy = {
            positions : p,
            holes : [{
                positions : h1,
                holes : [{
                    positions : h2
                }]
            }]
        };

        PolygonOutlineGeometry.createGeometry(new PolygonOutlineGeometry({
            polygonHierarchy : hierarchy,
            granularity : CesiumMath.PI_OVER_THREE
        }));

        expect(p).toEqualEpsilon(Cartesian3.fromDegreesArray([
                                                       -124.0, 35.0,
                                                       -124.0, 40.0,
                                                       -110.0, 40.0,
                                                       -110.0, 35.0
                                                   ]), CesiumMath.EPSILON9);
        expect(h1).toEqualEpsilon(Cartesian3.fromDegreesArray([
                                                        -122.0, 36.0,
                                                        -112.0, 36.0,
                                                        -112.0, 39.0,
                                                        -122.0, 39.0
                                                    ]), CesiumMath.EPSILON9);
        expect(h2).toEqualEpsilon(Cartesian3.fromDegreesArray([
                                                        -120.0, 36.5,
                                                        -120.0, 38.5,
                                                        -114.0, 38.5,
                                                        -114.0, 36.5
                                                    ]), CesiumMath.EPSILON9);
    });

    it('computes correct bounding sphere at height 0', function() {
        var p = PolygonOutlineGeometry.createGeometry(PolygonOutlineGeometry.fromPositions({
            positions : Cartesian3.fromDegreesArray([
                -108.0, 1.0,
                -108.0, -1.0,
                -106.0, -1.0,
                -106.0, 1.0
            ]),
            granularity : CesiumMath.PI_OVER_THREE
        }));

        var bs = BoundingSphere.fromVertices(p.attributes.position.values);
        expect(p.boundingSphere.center).toEqualEpsilon(bs.center, CesiumMath.EPSILON9);
        expect(p.boundingSphere.radius).toEqualEpsilon(bs.radius, CesiumMath.EPSILON9);
    });

    it('computes correct bounding sphere at height >>> 0', function() {
        var height = 40000000.0;
        var positions = Cartesian3.fromDegreesArray([
            -108.0, 1.0,
            -108.0, -1.0,
            -106.0, -1.0,
            -106.0, 1.0
        ]);

        var p = PolygonOutlineGeometry.createGeometry(PolygonOutlineGeometry.fromPositions({
            positions : positions,
            height : height
        }));

        var bs = BoundingSphere.fromPoints(Cartesian3.fromDegreesArrayHeights([
            -108.0, 1.0, height,
            -108.0, -1.0, height,
            -106.0, -1.0, height,
            -106.0, 1.0, height
        ]));
        expect(Math.abs(p.boundingSphere.radius - bs.radius)).toBeLessThan(100.0);
    });

    it('computes positions extruded', function() {
        var p = PolygonOutlineGeometry.createGeometry(PolygonOutlineGeometry.fromPositions({
            positions : Cartesian3.fromDegreesArray([
                -1.0, -1.0,
                1.0, -1.0,
                1.0, 1.0,
                -1.0, 1.0
            ]),
            extrudedHeight: 30000
        }));

        expect(p.attributes.position.values.length).toEqual(16 * 3); // 8 top + 8 bottom
        expect(p.indices.length).toEqual(20 * 2); // 8 top + 8 bottom + 4 edges
    });

    it('creates a polygon from hierarchy extruded', function() {
        var hierarchy = {
            positions : Cartesian3.fromDegreesArray([
                -124.0, 35.0,
                -110.0, 35.0,
                -110.0, 40.0,
                -124.0, 40.0
            ]),
            holes : [{
                positions : Cartesian3.fromDegreesArray([
                    -122.0, 36.0,
                    -122.0, 39.0,
                    -112.0, 39.0,
                    -112.0, 36.0
                ]),
                holes : [{
                    positions : Cartesian3.fromDegreesArray([
                        -120.0, 36.5,
                        -114.0, 36.5,
                        -114.0, 38.5,
                        -120.0, 38.5
                    ])
                }]
            }]
        };

        var p = PolygonOutlineGeometry.createGeometry(new PolygonOutlineGeometry({
            polygonHierarchy : hierarchy,
            granularity : CesiumMath.PI_OVER_THREE,
            extrudedHeight: 30000
        }));

        expect(p.attributes.position.values.length).toEqual(24 * 3); // 12 top + 12 bottom
        expect(p.indices.length).toEqual(36 * 2); // 12 top + 12 bottom + 12 edges
    });

    it('computes offset attribute', function() {
        var p = PolygonOutlineGeometry.createGeometry(PolygonOutlineGeometry.fromPositions({
            positions : Cartesian3.fromDegreesArray([
                -1.0, -1.0,
                1.0, -1.0,
                1.0, 1.0,
                -1.0, 1.0
            ]),
            offsetAttribute : GeometryOffsetAttribute.TOP
        }));

        var numVertices = 8;
        expect(p.attributes.position.values.length).toEqual(numVertices * 3);
        var offset = p.attributes.applyOffset.values;
        expect(offset.length).toEqual(numVertices);
        var expected = new Array(offset.length);
        expected = arrayFill(expected, 1);
        expect(offset).toEqual(expected);
    });

    it('computes offset attribute extruded for top vertices', function() {
        var p = PolygonOutlineGeometry.createGeometry(PolygonOutlineGeometry.fromPositions({
            positions : Cartesian3.fromDegreesArray([
                -1.0, -1.0,
                1.0, -1.0,
                1.0, 1.0,
                -1.0, 1.0
            ]),
            extrudedHeight: 30000,
            offsetAttribute : GeometryOffsetAttribute.TOP
        }));

        var numVertices = 16;
        expect(p.attributes.position.values.length).toEqual(numVertices * 3);

        var offset = p.attributes.applyOffset.values;
        expect(offset.length).toEqual(numVertices);
        var expected = new Array(offset.length);
        expected = arrayFill(expected, 0);
        expected = arrayFill(expected, 1, 0, 8);
        expect(offset).toEqual(expected);
    });

    it('computes offset attribute extruded for all vertices', function() {
        var p = PolygonOutlineGeometry.createGeometry(PolygonOutlineGeometry.fromPositions({
            positions : Cartesian3.fromDegreesArray([
                -1.0, -1.0,
                1.0, -1.0,
                1.0, 1.0,
                -1.0, 1.0
            ]),
            extrudedHeight: 30000,
            offsetAttribute : GeometryOffsetAttribute.ALL
        }));

        var numVertices = 16;
        expect(p.attributes.position.values.length).toEqual(numVertices * 3);

        var offset = p.attributes.applyOffset.values;
        expect(offset.length).toEqual(numVertices);
        var expected = new Array(offset.length);
        expected = arrayFill(expected, 1);
        expect(offset).toEqual(expected);
    });

    it('undefined is returned if there are less than 3 positions', function() {
        var polygonOutline = PolygonOutlineGeometry.fromPositions({
            positions : Cartesian3.fromDegreesArray([
                -72.0, 40.0,
                -68.0, 40.0
            ])
        });

        var geometry = PolygonOutlineGeometry.createGeometry(polygonOutline);

        expect(geometry).toBeUndefined();
    });

    var positions = Cartesian3.fromDegreesArray([
        -124.0, 35.0,
        -110.0, 35.0,
        -110.0, 40.0
    ]);
    var holePositions0 = Cartesian3.fromDegreesArray([
        -122.0, 36.0,
        -122.0, 39.0,
        -112.0, 39.0
    ]);
    var holePositions1 = Cartesian3.fromDegreesArray([
        -120.0, 36.5,
        -114.0, 36.5,
        -114.0, 38.5
    ]);
    var hierarchy = {
        positions : positions,
        holes : [{
            positions : holePositions0,
            holes : [{
                positions : holePositions1,
                holes : undefined
            }]
        }]
    };
    var polygon = new PolygonOutlineGeometry({
        polygonHierarchy : hierarchy,
        granularity : CesiumMath.PI_OVER_THREE,
        perPositionHeight : true
    });
     function addPositions(array, positions) {
        for (var i = 0; i < positions.length; ++i) {
           array.push(positions[i].x, positions[i].y, positions[i].z);
        }
    }
    var packedInstance = [3.0, 1.0];
    addPositions(packedInstance, positions);
    packedInstance.push(3.0, 1.0);
    addPositions(packedInstance, holePositions0);
    packedInstance.push(3.0, 0.0);
    addPositions(packedInstance, holePositions1);
    packedInstance.push(Ellipsoid.WGS84.radii.x, Ellipsoid.WGS84.radii.y, Ellipsoid.WGS84.radii.z);
    packedInstance.push(0.0, 0.0, CesiumMath.PI_OVER_THREE, 0.0, 1.0, -1, 43);
    createPackableSpecs(PolygonOutlineGeometry, polygon, packedInstance);
});