test_that("navigation basics", { skip_on_cran() suppressWarnings( # 06287800 net <- navigate_network(list(featureSource = "nwissite", featureID = "USGS-11486500"), "UM", output = "flowlines", trim_start = TRUE)) expect_equal(nrow(net), 5) expect_warning(net2 <- navigate_network(2562073, "UM", output = "flowlines", trim_start = TRUE), "trim_start ignored for comid start") start <- sf::st_sfc(sf::st_point(c(-121.6678, 42.14987)), crs = sf::st_crs(4269)) suppressWarnings( net3 <- navigate_network(start, "UM", output = "flowlines", trim_start = TRUE)) net_no_split <- navigate_network(start, "UM", output = "flowlines", trim_start = FALSE) expect_equal(names(net), names(net3)) expect_true(length(sf::st_geometry(net_no_split)[[5]]) > length(sf::st_geometry(net)[[5]])) suppressWarnings( net4 <- navigate_network(start, "UM", network = net_no_split, output = "flowlines", trim_start = TRUE)) expect_equal(names(net4), names(net)) expect_equal(nrow(net4), nrow(net)) expect_error(navigate_network(1234567, "UM", network = net_no_split, output = "flowlines", trim_start = TRUE)) expect_error(navigate_network("12345", "UM", output = "flowlines", trim_start = TRUE)) expect_error(navigate_network(12345.5, "UM", output = "flowlines", trim_start = TRUE)) suppressWarnings( net5 <- navigate_network(start, "UM", network = net_no_split, output = "nwissite", trim_start = TRUE)) }) test_that("walker", { skip_on_cran() source(system.file("extdata", "walker_data.R", package = "nhdplusTools")) hydro_location <- list(comid = 5329339, reachcode = "18050005000078", reach_meas = 30) hydro_location <- sf::st_sf(hydro_location, geom = nhdplusTools::get_hydro_location(data.frame(hydro_location), walker_flowline)) netD <- navigate_network(hydro_location, mode = "DM", network = walker_flowline, distance_km = 4, trim_start = TRUE) netM <- navigate_network(sf::st_geometry(hydro_location), mode = "UM", network = walker_flowline, distance_km = 4, trim_start = TRUE) expect_true(nrow(sf::st_coordinates(netD)) < nrow(sf::st_coordinates(netM))) })