"use strict" var crosses = require("../segseg") var tape = require("tape") tape("segment-segment crossing", function(t) { t.ok(crosses([-1, 0], [1, 0], [0,-1], [0,1]), "general test") t.ok(!crosses([0.5, 0], [1, 0], [0,-1], [0,1])) t.ok(crosses([0, 0], [1, 0], [0,-1], [0,1])) t.ok(crosses([0, 0], [100000000000000020000, 1e-12], [1,0], [1e20, 1e-11])) t.ok(!crosses([0, 0], [1e20, 1e-11], [1,0], [100000000000000020000, 1e-12])) t.ok(!crosses( [0, 1], [0, 2], [0, -1], [0, -2]), "collinear, no intersect") t.ok(crosses( [0, 1], [0, 2], [0, 1.5], [0, -2]), "collinear, intersect") t.ok(crosses( [0, 1], [0, 2], [0, 1], [0, -2]), "collinear, endpoint touch") t.ok(crosses( [0, 1], [0, -1], [0, 0], [0, 1]), "endpoint touches") t.end() })