describe('iD.presetInit', function() {
    var p = {
        point: {
            tags: {},
            geometry: ['point']
        },
        line: {
            tags: {},
            geometry: ['line']
        },
        vertex: {
            tags: {},
            geometry: ['vertex']
        },
        residential: {
            tags: { highway: 'residential' },
            geometry: ['line']
        },
        park: {
            tags: { leisure: 'park' },
            geometry: ['point', 'area']
        }
    };

    var c = iD.presetInit().load({presets: p});

    describe('#match', function() {
        it('returns a collection containing presets matching a geometry and tags', function() {
            var way = iD.Way({ tags: { highway: 'residential' } }),
                graph = iD.Graph([way]);
            expect(c.match(way, graph).id).to.eql('residential');
        });

        it('returns the appropriate fallback preset when no tags match', function() {
            var point = iD.Node(),
                line = iD.Way({ tags: { foo: 'bar' } }),
                graph = iD.Graph([point, line]);

            expect(c.match(point, graph).id).to.eql('point');
            expect(c.match(line, graph).id).to.eql('line');
        });

        it('matches vertices on a line as vertices', function() {
            var point = iD.Node({ tags: { leisure: 'park' } }),
                line = iD.Way({ nodes: [point.id], tags: { 'highway': 'residential' } }),
                graph = iD.Graph([point, line]);

            expect(c.match(point, graph).id).to.eql('vertex');
        });

        it('matches vertices on an addr:interpolation line as points', function() {
            var point = iD.Node({ tags: { leisure: 'park' } }),
                line = iD.Way({ nodes: [point.id], tags: { 'addr:interpolation': 'even' } }),
                graph = iD.Graph([point, line]);

            expect(c.match(point, graph).id).to.eql('park');
        });

    });

    describe('#areaKeys', function() {
        var presets = iD.presetInit().load({
            presets: {
                'amenity/fuel/shell': {
                    tags: { 'amenity': 'fuel' },
                    geometry: ['point','area'],
                    suggestion: true
                },
                'golf/water_hazard': {
                    tags: { 'golf': 'water_hazard' },
                    geometry: ['line', 'area']
                },
                'highway/foo': {
                    tags: { 'highway': 'foo' },
                    geometry: ['area']
                },
                'natural': {
                    tags: { 'natural': '*' },
                    geometry: ['point', 'vertex', 'area']
                },
                'natural/peak': {
                    tags: { 'natural': 'peak' },
                    geometry: ['point', 'vertex']
                },
                'natural/tree_row': {
                    tags: { 'natural': 'tree_row' },
                    geometry: ['line']
                },
                'natural/wood': {
                    tags: { 'natural': 'wood' },
                    geometry: ['point', 'area']
                }
            }
        });

        it('whitelists keys for presets with area geometry', function() {
            expect(presets.areaKeys()).to.include.keys('natural');
        });

        it('blacklists key-values for presets with a line geometry', function() {
            expect(presets.areaKeys().natural).to.include.keys('tree_row');
            expect(presets.areaKeys().natural.tree_row).to.be.true;
        });

        it('does not blacklist key-values for presets with both area and line geometry', function() {
            expect(presets.areaKeys().golf).not.to.include.keys('water_hazard');
        });

        it('does not blacklist key-values for presets with neither area nor line geometry', function() {
            expect(presets.areaKeys().natural).not.to.include.keys('peak');
        });

        it('does not blacklist generic \'*\' key-values', function() {
            expect(presets.areaKeys().natural).not.to.include.keys('natural');
        });

        it('ignores keys like \'highway\' that are assumed to be lines', function() {
            expect(presets.areaKeys()).not.to.include.keys('highway');
        });

        it('ignores suggestion presets', function() {
            expect(presets.areaKeys()).not.to.include.keys('amenity');
        });

    });

    describe('expected matches', function() {
        var presets;

        before(function() {
            presets = iD.presetInit().load(iD.dataPresets);
        });

        it('prefers building to multipolygon', function() {
            var relation = iD.Relation({tags: {type: 'multipolygon', building: 'yes'}}),
                graph    = iD.Graph([relation]);
            expect(presets.match(relation, graph).id).to.eql('building');
        });

        it('prefers building to address', function() {
            var way   = iD.Way({tags: {area: 'yes', building: 'yes', 'addr:housenumber': '1234'}}),
                graph = iD.Graph([way]);
            expect(presets.match(way, graph).id).to.eql('building');
        });

        it('prefers pedestrian to area', function() {
            var way   = iD.Way({tags: {area: 'yes', highway: 'pedestrian'}}),
                graph = iD.Graph([way]);
            expect(presets.match(way, graph).id).to.eql('highway/pedestrian');
        });
    });
});