Nothing
tests/testthat/test-gdal_warp.R
In sen2r: Find, Download and Process Sentinel-2 Data
message("\n---- Test gdal_warp() ----")
skip_gdal_tests()
crop_poly <- system.file("extdata/vector/dam.geojson", package = "sen2r")
crop_line <- sf::st_cast(sf::read_sf(crop_poly), "LINESTRING")
test1 <- tempfile(fileext = "_test1.tif")
ex_sel <- system.file(
"extdata/out/S2A2A_20190723_022_Barbellino_RGB432B_10.tif",
package = "sen2r"
)
ex_ref <- system.file(
"extdata/out/S2A2A_20190723_022_Barbellino_SCL_10.tif",
package = "sen2r"
)
testthat::test_that(
"Simple clip", {
gdal_warp(ex_sel, test1, mask = crop_line)
# test on raster metadata
exp_meta_r <- raster_metadata(test1, format = "list")[[1]]
testthat::expect_equal(names(exp_meta_r), c(
"path", "valid", "res", "size", "nbands", "bbox", "proj", "unit", "outformat", "type"
))
testthat::expect_equal(exp_meta_r$size, c("x"=8, "y"=26))
testthat::expect_equal(exp_meta_r$res, c("x"=10, "y"=10))
testthat::expect_equal(exp_meta_r$nbands, 3)
testthat::expect_equal(
as.numeric(exp_meta_r$bbox),
c(580620, 5101790, 580700, 5102050)
)
expect_equal_crs(exp_meta_r$proj, 32632)
testthat::expect_equal(exp_meta_r$type, "Byte")
testthat::expect_equal(exp_meta_r$outformat, "GTiff")
# test on raster values
skip_full_tests()
exp_stars <- stars::read_stars(test1)
testthat::expect_equal(mean(exp_stars[[1]][,,3], na.rm=TRUE), 97.15385, tolerance = 1e-03)
testthat::expect_equal(sum(is.na(exp_stars[[1]][,,3])), 0)
rm(exp_stars)
# tests on sen2r metadata
exp_meta_s <- testthat::expect_error(
sen2r_getElements(test1),
regexp = "not[ \n]recognised"
)
}
)
testthat::test_that(
"Clip and mask", {
test2 <- tempfile(fileext = "_test2.tif")
gdal_warp(ex_sel, test2, mask = crop_poly)
# test on raster metadata
exp_meta_r <- raster_metadata(test2, format = "list")[[1]]
testthat::expect_equal(exp_meta_r$size, c("x"=8, "y"=26))
testthat::expect_equal(exp_meta_r$res, c("x"=10, "y"=10))
testthat::expect_equal(exp_meta_r$nbands, 3)
testthat::expect_equal(
as.numeric(exp_meta_r$bbox),
c(580620, 5101790, 580700, 5102050)
)
expect_equal_crs(exp_meta_r$proj, 32632)
testthat::expect_equal(exp_meta_r$type, "Byte")
testthat::expect_equal(exp_meta_r$outformat, "GTiff")
# test on raster values
skip_full_tests()
exp_stars <- stars::read_stars(test2)
testthat::expect_equal(mean(exp_stars[[1]][,,3], na.rm=TRUE), 109.8916, tolerance = 1e-03)
testthat::expect_equal(sum(is.na(exp_stars[[1]][,,3])), 125, tolerance = 1e-03)
rm(exp_stars)
}
)
testthat::test_that(
"Clip and mask", {
test3 <- tempfile(fileext = "_test3.tif")
gdal_warp(ex_sel, test3, ref = ex_ref)
# test on raster metadata
exp_meta_r <- raster_metadata(test3, format = "list")[[1]]
testthat::expect_equal(exp_meta_r$size, c("x"=12, "y"=21))
testthat::expect_equal(exp_meta_r$res, c("x"=20, "y"=20))
testthat::expect_equal(exp_meta_r$nbands, 3)
testthat::expect_equal(
as.numeric(exp_meta_r$bbox),
c(580560, 5101700, 580800, 5102120)
)
expect_equal_crs(exp_meta_r$proj, 32632)
testthat::expect_equal(exp_meta_r$type, "Byte")
testthat::expect_equal(exp_meta_r$outformat, "GTiff")
# test on raster values
skip_full_tests()
exp_stars <- stars::read_stars(test3)
testthat::expect_equal(mean(exp_stars[[1]][,,3], na.rm=TRUE), 77.44048, tolerance = 1e-03)
testthat::expect_equal(sum(is.na(exp_stars[[1]][,,3])), 0)
rm(exp_stars)
}
)
testthat::test_that(
"Reproject all the input file", {
test4 <- tempfile(fileext = "_test4.tif")
gdal_warp(ex_sel, test4, t_srs = 32631)
# test on raster metadata
exp_meta_r <- raster_metadata(test4, format = "list")[[1]]
testthat::expect_equal(exp_meta_r$size, c("x"=27, "y"=44))
testthat::expect_equal(exp_meta_r$res, c("x"=10.0357, "y"=10.0357), tolerance = 1e-3)
testthat::expect_equal(exp_meta_r$nbands, 3)
testthat::expect_equal(
as.numeric(exp_meta_r$bbox),
c(1044533, 5125330, 1044805, 5125769),
tolerance = 1e-3
)
expect_equal_crs(exp_meta_r$proj, 32631)
testthat::expect_equal(exp_meta_r$type, "Byte")
testthat::expect_equal(exp_meta_r$outformat, "GTiff")
# test on raster values
skip_full_tests()
exp_stars <- stars::read_stars(test4)
testthat::expect_equal(mean(exp_stars[[1]][,,3], na.rm=TRUE), 77.11806, tolerance = 1e-03)
testthat::expect_equal(sum(is.na(exp_stars[[1]][,,3])), 180, tolerance = 1e-3)
rm(exp_stars)
}
)
testthat::test_that(
"Reproject in a projection without EPSG", {
# this test is intended to test gdal_warp() passing a WKT to gdalwarp
# instead then the EPSG code
# Moreover, it allows verifying the modification performed since GDAL 3.2.0
# about computing the output resolution in gdalwarp if the extent is
# provided (see https://github.com/OSGeo/gdal/issues/3294).
modis_wkt <- paste0(
'PROJCS["MODIS Sinusoidal",GEOGCS["WGS 84",DATUM["WGS_1984",SPHEROID["W',
'GS 84",6378137,298.257223563,AUTHORITY["EPSG","7030"]],AUTHORITY["EPSG',
'","6326"]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree',
'",0.01745329251994328,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4326',
'"]],PROJECTION["Sinusoidal"],PARAMETER["false_easting",0.0],PARAMETER["',
'false_northing",0.0],PARAMETER["central_meridian",0.0],PARAMETER["semi_',
'major",6371007.181],PARAMETER["semi_minor",6371007.181],UNIT["m",1.0]]'
)
test4b <- tempfile(fileext = "_test4b.tif")
test4_out <- tryCatch(
gdal_warp(ex_sel, test4b, t_srs = modis_wkt),
warning = function(w) {
suppressWarnings(gdal_warp(ex_sel, test4b, t_srs = modis_wkt))
w$message
}
)
testthat::expect_true(any(
test4_out == 0,
grepl("Discarded datum unknown in CRS definition", test4_out)
))
# test on raster metadata
exp_meta_r <- raster_metadata(test4b, format = "list")[[1]]
testthat::expect_equal(exp_meta_r$size, c("x"=27, "y"=40))
testthat::expect_equal(exp_meta_r$res, c("x"=10.58273, "y"=10.58273), tolerance = 1e-3)
testthat::expect_equal(exp_meta_r$nbands, 3)
testthat::expect_equal(
as.numeric(exp_meta_r$bbox),
c(776908.7, 5103210.8, 777196.7, 5103634.0),
tolerance = 1e-3
)
testthat::expect_equal(exp_meta_r$proj$epsg, as.integer(NA))
testthat::expect_equal(exp_meta_r$type, "Byte")
testthat::expect_equal(exp_meta_r$outformat, "GTiff")
# test on raster values
skip_full_tests()
exp_stars <- stars::read_stars(test4b)
testthat::expect_equal(mean(exp_stars[[1]][,,3], na.rm=TRUE), 76.65969, tolerance = 1e-03)
testthat::expect_equal(sum(is.na(exp_stars[[1]][,,3])), 172, tolerance = 1e-3)
rm(exp_stars)
}
)
testthat::test_that(
"Reproject using tap", {
test4c <- tempfile(fileext = "_test4c.tif")
gdal_warp(ex_sel, test4c, t_srs = 32631, tap = TRUE)
# test on raster metadata
exp_meta_r <- raster_metadata(test4c, format = "list")[[1]]
testthat::expect_equal(exp_meta_r$size, c("x"=28, "y"=45))
testthat::expect_equal(exp_meta_r$res, c("x"=10, "y"=10))
testthat::expect_equal(exp_meta_r$nbands, 3)
testthat::expect_equal(
as.numeric(exp_meta_r$bbox),
c(1044530, 5125320, 1044810, 5125770)
)
expect_equal_crs(exp_meta_r$proj, 32631)
testthat::expect_equal(exp_meta_r$type, "Byte")
testthat::expect_equal(exp_meta_r$outformat, "GTiff")
# test on raster values
skip_full_tests()
exp_stars <- stars::read_stars(test4c)
testthat::expect_equal(mean(exp_stars[[1]][,,3], na.rm=TRUE), 77.05616, tolerance = 1e-03)
testthat::expect_equal(sum(is.na(exp_stars[[1]][,,3])), 245, tolerance = 1e-3)
rm(exp_stars)
}
)
testthat::test_that(
"Reproject and clip on a bounding box", {
test5 <- tempfile(fileext = "_test5.tif")
gdal_warp(
ex_sel, test5,
t_srs = "EPSG:32631",
mask = stars::read_stars(test1)
)
# test on raster metadata
exp_meta_r <- raster_metadata(test5, format = "list")[[1]]
testthat::expect_equal(exp_meta_r$size, c("x"=11, "y"=28))
testthat::expect_equal(exp_meta_r$res, c("x"=10.0357, "y"=10.0357), tolerance = 1e-3)
testthat::expect_equal(exp_meta_r$nbands, 3)
testthat::expect_equal(
as.numeric(exp_meta_r$bbox),
c(1044599, 5125425, 1044698, 5125691),
tolerance = 1e-3
)
expect_equal_crs(exp_meta_r$proj, 32631)
testthat::expect_equal(exp_meta_r$type, "Byte")
testthat::expect_equal(exp_meta_r$outformat, "GTiff")
# test on raster values
skip_full_tests()
exp_stars <- stars::read_stars(test5)
testthat::expect_equal(mean(exp_stars[[1]][,,3], na.rm=TRUE), 97.15385, tolerance = 1e-03)
testthat::expect_equal(sum(is.na(exp_stars[[1]][,,3])), 100, tolerance = 1e-03)
rm(exp_stars)
}
)
test6 <- tempfile(fileext = "_test6.tif")
testthat::test_that(
"Reproject and clip on polygon (masking outside)", {
gdal_warp(
ex_sel, test6,
t_srs = 32631,
mask = crop_poly
)
# test on raster metadata
exp_meta_r <- raster_metadata(test6, format = "list")[[1]]
testthat::expect_equal(exp_meta_r$size, c("x"=7, "y"=27))
testthat::expect_equal(exp_meta_r$res, c("x"=10.0357, "y"=10.0357), tolerance = 1e-2)
testthat::expect_equal(exp_meta_r$nbands, 3)
testthat::expect_equal(
as.numeric(exp_meta_r$bbox),
c(1044599, 5125425, 1044698, 5125691),
tolerance = 1e-3
)
expect_equal_crs(exp_meta_r$proj, 32631)
testthat::expect_equal(exp_meta_r$type, "Byte")
testthat::expect_equal(exp_meta_r$outformat, "GTiff")
# test on raster values
skip_full_tests()
exp_stars <- stars::read_stars(test6)
testthat::expect_equal(mean(exp_stars[[1]][,,3], na.rm=TRUE), 109.8916, tolerance = 1e-03)
testthat::expect_equal(sum(is.na(exp_stars[[1]][,,3])), 106, tolerance = 1e-03)
rm(exp_stars)
}
)
testthat::test_that(
"Use a reference raster with a different projection", {
test7 <- tempfile(fileext = "_test7.tif")
gdal_warp(ex_sel, test7, ref = test6)
# test on raster metadata
exp_meta_r <- raster_metadata(test7, format = "list")[[1]]
testthat::expect_equal(exp_meta_r$size, c("x" = 7, "y" = 27))
testthat::expect_equal(
exp_meta_r$res, c("x" = 10.0357, "y" = 10.0357),
tolerance = 1e-3
)
testthat::expect_equal(exp_meta_r$nbands, 3)
testthat::expect_equal(
as.numeric(exp_meta_r$bbox),
c(1044599, 5125425, 1044698, 5125691),
tolerance = 1e-3
)
expect_equal_crs(exp_meta_r$proj, 32631)
testthat::expect_equal(exp_meta_r$type, "Byte")
testthat::expect_equal(exp_meta_r$outformat, "GTiff")
# test on raster values
skip_full_tests()
exp_stars <- stars::read_stars(test7)
testthat::expect_equal(mean(exp_stars[[1]][,,3], na.rm=TRUE), 95.07407, tolerance = 1e-03)
testthat::expect_equal(sum(is.na(exp_stars[[1]][,,3])), 0)
rm(exp_stars)
}
)
testthat::test_that(
"...and specify a different bounding box", {
test8 <- tempfile(fileext = "_test8.tif")
gdal_warp(ex_sel, test8, mask = stars::read_stars(test1), ref = test6)
# test on raster metadata
exp_meta_r <- raster_metadata(test8, format = "list")[[1]]
testthat::expect_equal(exp_meta_r$size, c("x"=11, "y"=28))
testthat::expect_equal(exp_meta_r$res, c("x"=10.0357, "y"=10.0357), tolerance = 1e-3)
testthat::expect_equal(exp_meta_r$nbands, 3)
testthat::expect_equal(
as.numeric(exp_meta_r$bbox),
c(1044599, 5125425, 1044698, 5125691),
tolerance = 1e-3
)
expect_equal_crs(exp_meta_r$proj, 32631)
testthat::expect_equal(exp_meta_r$type, "Byte")
testthat::expect_equal(exp_meta_r$outformat, "GTiff")
# test on raster values
skip_full_tests()
exp_stars <- stars::read_stars(test8)
testthat::expect_equal(mean(exp_stars[[1]][,,3], na.rm=TRUE), 94.73444, tolerance = 1e-03)
testthat::expect_equal(sum(is.na(exp_stars[[1]][,,3])), 67, tolerance = 1e-03)
rm(exp_stars)
}
)
testthat::test_that(
"Use a reference raster with a different projection and a mask", {
test9 <- tempfile(fileext = "_test9.tif")
gdal_warp(ex_sel, test9, mask = crop_poly, ref = test6)
# test on raster metadata
exp_meta_r <- raster_metadata(test9, format = "list")[[1]]
testthat::expect_equal(exp_meta_r$size, c("x"=7, "y"=27))
testthat::expect_equal(exp_meta_r$res, c("x"=10.0357, "y"=10.0357), tolerance = 1e-3)
testthat::expect_equal(exp_meta_r$nbands, 3)
testthat::expect_equal(
as.numeric(exp_meta_r$bbox),
c(1044599, 5125425, 1044698, 5125691),
tolerance = 1e-3
)
expect_equal_crs(exp_meta_r$proj, 32631)
testthat::expect_equal(exp_meta_r$type, "Byte")
testthat::expect_equal(exp_meta_r$outformat, "GTiff")
# test on raster values
skip_full_tests()
exp_stars <- stars::read_stars(test9)
testthat::expect_equal(mean(exp_stars[[1]][,,3], na.rm=TRUE), 104.4956, tolerance = 1e-03)
testthat::expect_equal(sum(is.na(exp_stars[[1]][,,3])), 76, tolerance = 1e-03)
rm(exp_stars)
}
)
testthat::test_that(
"Clip, mask and reproject", {
test10 <- tempfile(fileext = "_test10.tif")
gdal_warp(ex_sel, test10, mask = crop_poly, t_srs = 32631)
# test on raster metadata
exp_meta_r <- raster_metadata(test10, format = "list")[[1]]
testthat::expect_equal(exp_meta_r$size, c("x"=7, "y"=27))
testthat::expect_equal(exp_meta_r$res, c("x"=10.0357, "y"=10.0357), tolerance = 1e-3)
testthat::expect_equal(exp_meta_r$nbands, 3)
testthat::expect_equal(
as.numeric(exp_meta_r$bbox),
c(1044614, 5125427, 1044678, 5125683),
tolerance = 1e-3
)
expect_equal_crs(exp_meta_r$proj, 32631)
testthat::expect_equal(exp_meta_r$type, "Byte")
testthat::expect_equal(exp_meta_r$outformat, "GTiff")
# test on raster values
skip_full_tests()
exp_stars <- stars::read_stars(test10)
testthat::expect_equal(mean(exp_stars[[1]][,,3], na.rm=TRUE), 109.8916, tolerance = 1e-03)
testthat::expect_equal(sum(is.na(exp_stars[[1]][,,3])), 106, tolerance = 1e-03)
rm(exp_stars)
}
)
# context("Test conversion from/to VRT with relative paths to/from VRT with absolute paths")
# testthat::skip_on_cran()
# testthat::skip_on_travis()
#
# abs_file <- exp_outpath_4
# rel_file <- file.path(tempdir(), "S2A2A_20190723_022_Scalve_SCL_10_rel.vrt")
# testthat::test_that(
# "Tests on gdal_abs2rel()", {
#
# testthat::expect_true(dir.exists(outdir_4))
# testthat::expect_true(file.exists(abs_file))
#
# abs_content <- readLines(abs_file)
# abs_path <- gsub(
# "^.* relativeToVRT=\"0\">(.*)</.*", "\\1",
# abs_content[grepl("relativeToVRT", abs_content)]
# )
# testthat::expect_true(grepl("^/", abs_path))
#
# gdal_abs2rel(abs_file, out_vrt = rel_file)
# testthat::expect_true(file.exists(rel_file))
#
# }
# )
#
#
# testthat::test_that(
# "Tests on gdal_rel2abs()", {
#
# rel_content <- readLines(rel_file)
# rel_path <- gsub(
# "^.* relativeToVRT=\"1\">(.*)</.*", "\\1",
# rel_content[grepl("relativeToVRT", rel_content)]
# )
# testthat::expect_true(grepl("^\\.\\.?/", rel_path))
#
# oldwd <- getwd()
# setwd(dirname(abs_file))
# testthat::expect_true(file.exists(rel_path))
# gdal_rel2abs(rel_file)
# testthat::expect_true(file.exists(rel_file))
#
# abs_content <- readLines(rel_file)
# abs_path <- gsub(
# "^.* relativeToVRT=\"0\">(.*)</.*", "\\1",
# abs_content[grepl("relativeToVRT", abs_content)]
# )
# testthat::expect_true(grepl("^/", abs_path))
# setwd(oldwd)
#
# }
# )
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message("\n---- Test gdal_warp() ----")
skip_gdal_tests()
crop_poly <- system.file("extdata/vector/dam.geojson", package = "sen2r")
crop_line <- sf::st_cast(sf::read_sf(crop_poly), "LINESTRING")
test1 <- tempfile(fileext = "_test1.tif")
ex_sel <- system.file(
"extdata/out/S2A2A_20190723_022_Barbellino_RGB432B_10.tif",
package = "sen2r"
)
ex_ref <- system.file(
"extdata/out/S2A2A_20190723_022_Barbellino_SCL_10.tif",
package = "sen2r"
)
testthat::test_that(
"Simple clip", {
gdal_warp(ex_sel, test1, mask = crop_line)
# test on raster metadata
exp_meta_r <- raster_metadata(test1, format = "list")[[1]]
testthat::expect_equal(names(exp_meta_r), c(
"path", "valid", "res", "size", "nbands", "bbox", "proj", "unit", "outformat", "type"
))
testthat::expect_equal(exp_meta_r$size, c("x"=8, "y"=26))
testthat::expect_equal(exp_meta_r$res, c("x"=10, "y"=10))
testthat::expect_equal(exp_meta_r$nbands, 3)
testthat::expect_equal(
as.numeric(exp_meta_r$bbox),
c(580620, 5101790, 580700, 5102050)
)
expect_equal_crs(exp_meta_r$proj, 32632)
testthat::expect_equal(exp_meta_r$type, "Byte")
testthat::expect_equal(exp_meta_r$outformat, "GTiff")
# test on raster values
skip_full_tests()
exp_stars <- stars::read_stars(test1)
testthat::expect_equal(mean(exp_stars[[1]][,,3], na.rm=TRUE), 97.15385, tolerance = 1e-03)
testthat::expect_equal(sum(is.na(exp_stars[[1]][,,3])), 0)
rm(exp_stars)
# tests on sen2r metadata
exp_meta_s <- testthat::expect_error(
sen2r_getElements(test1),
regexp = "not[ \n]recognised"
)
}
)
testthat::test_that(
"Clip and mask", {
test2 <- tempfile(fileext = "_test2.tif")
gdal_warp(ex_sel, test2, mask = crop_poly)
# test on raster metadata
exp_meta_r <- raster_metadata(test2, format = "list")[[1]]
testthat::expect_equal(exp_meta_r$size, c("x"=8, "y"=26))
testthat::expect_equal(exp_meta_r$res, c("x"=10, "y"=10))
testthat::expect_equal(exp_meta_r$nbands, 3)
testthat::expect_equal(
as.numeric(exp_meta_r$bbox),
c(580620, 5101790, 580700, 5102050)
)
expect_equal_crs(exp_meta_r$proj, 32632)
testthat::expect_equal(exp_meta_r$type, "Byte")
testthat::expect_equal(exp_meta_r$outformat, "GTiff")
# test on raster values
skip_full_tests()
exp_stars <- stars::read_stars(test2)
testthat::expect_equal(mean(exp_stars[[1]][,,3], na.rm=TRUE), 109.8916, tolerance = 1e-03)
testthat::expect_equal(sum(is.na(exp_stars[[1]][,,3])), 125, tolerance = 1e-03)
rm(exp_stars)
}
)
testthat::test_that(
"Clip and mask", {
test3 <- tempfile(fileext = "_test3.tif")
gdal_warp(ex_sel, test3, ref = ex_ref)
# test on raster metadata
exp_meta_r <- raster_metadata(test3, format = "list")[[1]]
testthat::expect_equal(exp_meta_r$size, c("x"=12, "y"=21))
testthat::expect_equal(exp_meta_r$res, c("x"=20, "y"=20))
testthat::expect_equal(exp_meta_r$nbands, 3)
testthat::expect_equal(
as.numeric(exp_meta_r$bbox),
c(580560, 5101700, 580800, 5102120)
)
expect_equal_crs(exp_meta_r$proj, 32632)
testthat::expect_equal(exp_meta_r$type, "Byte")
testthat::expect_equal(exp_meta_r$outformat, "GTiff")
# test on raster values
skip_full_tests()
exp_stars <- stars::read_stars(test3)
testthat::expect_equal(mean(exp_stars[[1]][,,3], na.rm=TRUE), 77.44048, tolerance = 1e-03)
testthat::expect_equal(sum(is.na(exp_stars[[1]][,,3])), 0)
rm(exp_stars)
}
)
testthat::test_that(
"Reproject all the input file", {
test4 <- tempfile(fileext = "_test4.tif")
gdal_warp(ex_sel, test4, t_srs = 32631)
# test on raster metadata
exp_meta_r <- raster_metadata(test4, format = "list")[[1]]
testthat::expect_equal(exp_meta_r$size, c("x"=27, "y"=44))
testthat::expect_equal(exp_meta_r$res, c("x"=10.0357, "y"=10.0357), tolerance = 1e-3)
testthat::expect_equal(exp_meta_r$nbands, 3)
testthat::expect_equal(
as.numeric(exp_meta_r$bbox),
c(1044533, 5125330, 1044805, 5125769),
tolerance = 1e-3
)
expect_equal_crs(exp_meta_r$proj, 32631)
testthat::expect_equal(exp_meta_r$type, "Byte")
testthat::expect_equal(exp_meta_r$outformat, "GTiff")
# test on raster values
skip_full_tests()
exp_stars <- stars::read_stars(test4)
testthat::expect_equal(mean(exp_stars[[1]][,,3], na.rm=TRUE), 77.11806, tolerance = 1e-03)
testthat::expect_equal(sum(is.na(exp_stars[[1]][,,3])), 180, tolerance = 1e-3)
rm(exp_stars)
}
)
testthat::test_that(
"Reproject in a projection without EPSG", {
# this test is intended to test gdal_warp() passing a WKT to gdalwarp
# instead then the EPSG code
# Moreover, it allows verifying the modification performed since GDAL 3.2.0
# about computing the output resolution in gdalwarp if the extent is
# provided (see https://github.com/OSGeo/gdal/issues/3294).
modis_wkt <- paste0(
'PROJCS["MODIS Sinusoidal",GEOGCS["WGS 84",DATUM["WGS_1984",SPHEROID["W',
'GS 84",6378137,298.257223563,AUTHORITY["EPSG","7030"]],AUTHORITY["EPSG',
'","6326"]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree',
'",0.01745329251994328,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4326',
'"]],PROJECTION["Sinusoidal"],PARAMETER["false_easting",0.0],PARAMETER["',
'false_northing",0.0],PARAMETER["central_meridian",0.0],PARAMETER["semi_',
'major",6371007.181],PARAMETER["semi_minor",6371007.181],UNIT["m",1.0]]'
)
test4b <- tempfile(fileext = "_test4b.tif")
test4_out <- tryCatch(
gdal_warp(ex_sel, test4b, t_srs = modis_wkt),
warning = function(w) {
suppressWarnings(gdal_warp(ex_sel, test4b, t_srs = modis_wkt))
w$message
}
)
testthat::expect_true(any(
test4_out == 0,
grepl("Discarded datum unknown in CRS definition", test4_out)
))
# test on raster metadata
exp_meta_r <- raster_metadata(test4b, format = "list")[[1]]
testthat::expect_equal(exp_meta_r$size, c("x"=27, "y"=40))
testthat::expect_equal(exp_meta_r$res, c("x"=10.58273, "y"=10.58273), tolerance = 1e-3)
testthat::expect_equal(exp_meta_r$nbands, 3)
testthat::expect_equal(
as.numeric(exp_meta_r$bbox),
c(776908.7, 5103210.8, 777196.7, 5103634.0),
tolerance = 1e-3
)
testthat::expect_equal(exp_meta_r$proj$epsg, as.integer(NA))
testthat::expect_equal(exp_meta_r$type, "Byte")
testthat::expect_equal(exp_meta_r$outformat, "GTiff")
# test on raster values
skip_full_tests()
exp_stars <- stars::read_stars(test4b)
testthat::expect_equal(mean(exp_stars[[1]][,,3], na.rm=TRUE), 76.65969, tolerance = 1e-03)
testthat::expect_equal(sum(is.na(exp_stars[[1]][,,3])), 172, tolerance = 1e-3)
rm(exp_stars)
}
)
testthat::test_that(
"Reproject using tap", {
test4c <- tempfile(fileext = "_test4c.tif")
gdal_warp(ex_sel, test4c, t_srs = 32631, tap = TRUE)
# test on raster metadata
exp_meta_r <- raster_metadata(test4c, format = "list")[[1]]
testthat::expect_equal(exp_meta_r$size, c("x"=28, "y"=45))
testthat::expect_equal(exp_meta_r$res, c("x"=10, "y"=10))
testthat::expect_equal(exp_meta_r$nbands, 3)
testthat::expect_equal(
as.numeric(exp_meta_r$bbox),
c(1044530, 5125320, 1044810, 5125770)
)
expect_equal_crs(exp_meta_r$proj, 32631)
testthat::expect_equal(exp_meta_r$type, "Byte")
testthat::expect_equal(exp_meta_r$outformat, "GTiff")
# test on raster values
skip_full_tests()
exp_stars <- stars::read_stars(test4c)
testthat::expect_equal(mean(exp_stars[[1]][,,3], na.rm=TRUE), 77.05616, tolerance = 1e-03)
testthat::expect_equal(sum(is.na(exp_stars[[1]][,,3])), 245, tolerance = 1e-3)
rm(exp_stars)
}
)
testthat::test_that(
"Reproject and clip on a bounding box", {
test5 <- tempfile(fileext = "_test5.tif")
gdal_warp(
ex_sel, test5,
t_srs = "EPSG:32631",
mask = stars::read_stars(test1)
)
# test on raster metadata
exp_meta_r <- raster_metadata(test5, format = "list")[[1]]
testthat::expect_equal(exp_meta_r$size, c("x"=11, "y"=28))
testthat::expect_equal(exp_meta_r$res, c("x"=10.0357, "y"=10.0357), tolerance = 1e-3)
testthat::expect_equal(exp_meta_r$nbands, 3)
testthat::expect_equal(
as.numeric(exp_meta_r$bbox),
c(1044599, 5125425, 1044698, 5125691),
tolerance = 1e-3
)
expect_equal_crs(exp_meta_r$proj, 32631)
testthat::expect_equal(exp_meta_r$type, "Byte")
testthat::expect_equal(exp_meta_r$outformat, "GTiff")
# test on raster values
skip_full_tests()
exp_stars <- stars::read_stars(test5)
testthat::expect_equal(mean(exp_stars[[1]][,,3], na.rm=TRUE), 97.15385, tolerance = 1e-03)
testthat::expect_equal(sum(is.na(exp_stars[[1]][,,3])), 100, tolerance = 1e-03)
rm(exp_stars)
}
)
test6 <- tempfile(fileext = "_test6.tif")
testthat::test_that(
"Reproject and clip on polygon (masking outside)", {
gdal_warp(
ex_sel, test6,
t_srs = 32631,
mask = crop_poly
)
# test on raster metadata
exp_meta_r <- raster_metadata(test6, format = "list")[[1]]
testthat::expect_equal(exp_meta_r$size, c("x"=7, "y"=27))
testthat::expect_equal(exp_meta_r$res, c("x"=10.0357, "y"=10.0357), tolerance = 1e-2)
testthat::expect_equal(exp_meta_r$nbands, 3)
testthat::expect_equal(
as.numeric(exp_meta_r$bbox),
c(1044599, 5125425, 1044698, 5125691),
tolerance = 1e-3
)
expect_equal_crs(exp_meta_r$proj, 32631)
testthat::expect_equal(exp_meta_r$type, "Byte")
testthat::expect_equal(exp_meta_r$outformat, "GTiff")
# test on raster values
skip_full_tests()
exp_stars <- stars::read_stars(test6)
testthat::expect_equal(mean(exp_stars[[1]][,,3], na.rm=TRUE), 109.8916, tolerance = 1e-03)
testthat::expect_equal(sum(is.na(exp_stars[[1]][,,3])), 106, tolerance = 1e-03)
rm(exp_stars)
}
)
testthat::test_that(
"Use a reference raster with a different projection", {
test7 <- tempfile(fileext = "_test7.tif")
gdal_warp(ex_sel, test7, ref = test6)
# test on raster metadata
exp_meta_r <- raster_metadata(test7, format = "list")[[1]]
testthat::expect_equal(exp_meta_r$size, c("x" = 7, "y" = 27))
testthat::expect_equal(
exp_meta_r$res, c("x" = 10.0357, "y" = 10.0357),
tolerance = 1e-3
)
testthat::expect_equal(exp_meta_r$nbands, 3)
testthat::expect_equal(
as.numeric(exp_meta_r$bbox),
c(1044599, 5125425, 1044698, 5125691),
tolerance = 1e-3
)
expect_equal_crs(exp_meta_r$proj, 32631)
testthat::expect_equal(exp_meta_r$type, "Byte")
testthat::expect_equal(exp_meta_r$outformat, "GTiff")
# test on raster values
skip_full_tests()
exp_stars <- stars::read_stars(test7)
testthat::expect_equal(mean(exp_stars[[1]][,,3], na.rm=TRUE), 95.07407, tolerance = 1e-03)
testthat::expect_equal(sum(is.na(exp_stars[[1]][,,3])), 0)
rm(exp_stars)
}
)
testthat::test_that(
"...and specify a different bounding box", {
test8 <- tempfile(fileext = "_test8.tif")
gdal_warp(ex_sel, test8, mask = stars::read_stars(test1), ref = test6)
# test on raster metadata
exp_meta_r <- raster_metadata(test8, format = "list")[[1]]
testthat::expect_equal(exp_meta_r$size, c("x"=11, "y"=28))
testthat::expect_equal(exp_meta_r$res, c("x"=10.0357, "y"=10.0357), tolerance = 1e-3)
testthat::expect_equal(exp_meta_r$nbands, 3)
testthat::expect_equal(
as.numeric(exp_meta_r$bbox),
c(1044599, 5125425, 1044698, 5125691),
tolerance = 1e-3
)
expect_equal_crs(exp_meta_r$proj, 32631)
testthat::expect_equal(exp_meta_r$type, "Byte")
testthat::expect_equal(exp_meta_r$outformat, "GTiff")
# test on raster values
skip_full_tests()
exp_stars <- stars::read_stars(test8)
testthat::expect_equal(mean(exp_stars[[1]][,,3], na.rm=TRUE), 94.73444, tolerance = 1e-03)
testthat::expect_equal(sum(is.na(exp_stars[[1]][,,3])), 67, tolerance = 1e-03)
rm(exp_stars)
}
)
testthat::test_that(
"Use a reference raster with a different projection and a mask", {
test9 <- tempfile(fileext = "_test9.tif")
gdal_warp(ex_sel, test9, mask = crop_poly, ref = test6)
# test on raster metadata
exp_meta_r <- raster_metadata(test9, format = "list")[[1]]
testthat::expect_equal(exp_meta_r$size, c("x"=7, "y"=27))
testthat::expect_equal(exp_meta_r$res, c("x"=10.0357, "y"=10.0357), tolerance = 1e-3)
testthat::expect_equal(exp_meta_r$nbands, 3)
testthat::expect_equal(
as.numeric(exp_meta_r$bbox),
c(1044599, 5125425, 1044698, 5125691),
tolerance = 1e-3
)
expect_equal_crs(exp_meta_r$proj, 32631)
testthat::expect_equal(exp_meta_r$type, "Byte")
testthat::expect_equal(exp_meta_r$outformat, "GTiff")
# test on raster values
skip_full_tests()
exp_stars <- stars::read_stars(test9)
testthat::expect_equal(mean(exp_stars[[1]][,,3], na.rm=TRUE), 104.4956, tolerance = 1e-03)
testthat::expect_equal(sum(is.na(exp_stars[[1]][,,3])), 76, tolerance = 1e-03)
rm(exp_stars)
}
)
testthat::test_that(
"Clip, mask and reproject", {
test10 <- tempfile(fileext = "_test10.tif")
gdal_warp(ex_sel, test10, mask = crop_poly, t_srs = 32631)
# test on raster metadata
exp_meta_r <- raster_metadata(test10, format = "list")[[1]]
testthat::expect_equal(exp_meta_r$size, c("x"=7, "y"=27))
testthat::expect_equal(exp_meta_r$res, c("x"=10.0357, "y"=10.0357), tolerance = 1e-3)
testthat::expect_equal(exp_meta_r$nbands, 3)
testthat::expect_equal(
as.numeric(exp_meta_r$bbox),
c(1044614, 5125427, 1044678, 5125683),
tolerance = 1e-3
)
expect_equal_crs(exp_meta_r$proj, 32631)
testthat::expect_equal(exp_meta_r$type, "Byte")
testthat::expect_equal(exp_meta_r$outformat, "GTiff")
# test on raster values
skip_full_tests()
exp_stars <- stars::read_stars(test10)
testthat::expect_equal(mean(exp_stars[[1]][,,3], na.rm=TRUE), 109.8916, tolerance = 1e-03)
testthat::expect_equal(sum(is.na(exp_stars[[1]][,,3])), 106, tolerance = 1e-03)
rm(exp_stars)
}
)
# context("Test conversion from/to VRT with relative paths to/from VRT with absolute paths")
# testthat::skip_on_cran()
# testthat::skip_on_travis()
#
# abs_file <- exp_outpath_4
# rel_file <- file.path(tempdir(), "S2A2A_20190723_022_Scalve_SCL_10_rel.vrt")
# testthat::test_that(
# "Tests on gdal_abs2rel()", {
#
# testthat::expect_true(dir.exists(outdir_4))
# testthat::expect_true(file.exists(abs_file))
#
# abs_content <- readLines(abs_file)
# abs_path <- gsub(
# "^.* relativeToVRT=\"0\">(.*)</.*", "\\1",
# abs_content[grepl("relativeToVRT", abs_content)]
# )
# testthat::expect_true(grepl("^/", abs_path))
#
# gdal_abs2rel(abs_file, out_vrt = rel_file)
# testthat::expect_true(file.exists(rel_file))
#
# }
# )
#
#
# testthat::test_that(
# "Tests on gdal_rel2abs()", {
#
# rel_content <- readLines(rel_file)
# rel_path <- gsub(
# "^.* relativeToVRT=\"1\">(.*)</.*", "\\1",
# rel_content[grepl("relativeToVRT", rel_content)]
# )
# testthat::expect_true(grepl("^\\.\\.?/", rel_path))
#
# oldwd <- getwd()
# setwd(dirname(abs_file))
# testthat::expect_true(file.exists(rel_path))
# gdal_rel2abs(rel_file)
# testthat::expect_true(file.exists(rel_file))
#
# abs_content <- readLines(rel_file)
# abs_path <- gsub(
# "^.* relativeToVRT=\"0\">(.*)</.*", "\\1",
# abs_content[grepl("relativeToVRT", abs_content)]
# )
# testthat::expect_true(grepl("^/", abs_path))
# setwd(oldwd)
#
# }
# )
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