Nothing
lon <- seq(170, 350, by = 10)
lat <- c(-50, -40)
test_that("no longitude warnings", {
expect_s4_class(graticule(lon, lat), "SpatialLinesDataFrame")
expect_s4_class(graticule(lon, lat, tiles = TRUE), "SpatialPolygonsDataFrame")
expect_s4_class(graticule_labels(lon, lat), "SpatialPointsDataFrame")
})
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