iD/test/spec/actions/move_way.js

describe("iD.actions.MoveWay", function () {
    it("moves all nodes in a way by the given amount", function () {
        var node1  = iD.Node({loc: [0, 0]}),
            node2  = iD.Node({loc: [5, 10]}),
            way    = iD.Way({nodes: [node1.id, node2.id]}),
            delta  = [2, 3],
            projection = d3.geo.mercator(),
            graph  = iD.actions.MoveWay(way.id, delta, projection)(iD.Graph([node1, node2, way])),
            loc1   = graph.entity(node1.id).loc,
            loc2   = graph.entity(node2.id).loc;
        expect(loc1[0]).to.be.closeTo( 1.440, 0.001);
        expect(loc1[1]).to.be.closeTo(-2.159, 0.001);
        expect(loc2[0]).to.be.closeTo( 6.440, 0.001);
        expect(loc2[1]).to.be.closeTo( 7.866, 0.001);
    });

    it("moves repeated nodes only once", function () {
        var node   = iD.Node({loc: [0, 0]}),
            way    = iD.Way({nodes: [node.id, node.id]}),
            delta  = [2, 3],
            projection = d3.geo.mercator(),
            graph  = iD.actions.MoveWay(way.id, delta, projection)(iD.Graph([node, way])),
            loc    = graph.entity(node.id).loc;
        expect(loc[0]).to.be.closeTo( 1.440, 0.001);
        expect(loc[1]).to.be.closeTo(-2.159, 0.001);
    });
});