@Test
    public void testZero() {
        parser = new BoundingBoxParser("n=0,s=0,e=0,w=0");
        allZero(parser);
        parser = new BoundingBoxParser("N=0,S=0,E=0,W=0");
        allZero(parser);
        parser = new BoundingBoxParser("NORTH=0,SOUTH=0,EAST=0,WEST=0");
        allZero(parser);
        parser = new BoundingBoxParser("north=0,south=0,east=0,west=0");
        allZero(parser);
        parser = new BoundingBoxParser("n=0.0,s=0.0e-17,e=0.0e0,w=0.0e100");
        allZero(parser);
        parser = new BoundingBoxParser("s:0.0,w:0.0,n:0.0,e:0.0");
        allZero(parser);
        parser = new BoundingBoxParser("s:0.0,w:0.0,n:0.0,e:0.0");
        allZero(parser);
    }
Tests different inputs that should all produce 0
vespajlib/src/test/java/com/yahoo/geo/BoundingBoxParserTestCase.java