tests/testthat/test-sen2r-03_mask.R

In ranghetti/sen2r: Find, Download and Process Sentinel-2 Data

message("\n---- Test mask - main function ----")
testthat::skip_on_cran()
if (Sys.info()["sysname"] != "Linux") {
  testthat::skip_on_ci() # TODO try to remove
}
skip_full_tests()

# Required SAFE
s2_l2a_list <- c(
  "S2B_MSIL2A_20200801T100559_N0214_R022_T32TNR_20200801T135302.SAFE",
  "S2B_MSIL2A_20200801T100559_N0214_R022_T32TNS_20200801T135302.SAFE"
)

testthat::test_that(
  "Tests on base mask on BOA", {
    
    # Check sample inputs
    testthat::skip_if_not(file.exists(file.path(
      safe_dir, s2_l2a_list[1],
      "GRANULE/L2A_T32TNR_A017780_20200801T101400/IMG_DATA/R10m",
      "T32TNR_20200801T100559_B08_10m.jp2"
    )))
    testthat::skip_if_not(file.exists(file.path(
      safe_dir, s2_l2a_list[2],
      "GRANULE/L2A_T32TNS_A017780_20200801T101400/IMG_DATA/R10m",
      "T32TNS_20200801T100559_B08_10m.jp2"
    )))
    
    outdir_5 <- tempfile(pattern = "out_test5_")
    dir.create(dirname(outdir_5), showWarnings = FALSE)
    exp_outpath_5 <- file.path(
      outdir_5, c("BOA", "WVP", "AOT", "SCL", "CLD"),
      c("S2B2A_20200801_022_Scalve_BOA_10.dat",
        "S2B2A_20200801_022_Scalve_WVP_10.dat",
        "S2B2A_20200801_022_Scalve_AOT_10.dat",
        "S2B2A_20200801_022_Scalve_SCL_10.dat",
        "S2B2A_20200801_022_Scalve_CLD_10.dat")
    )
    unlink(exp_outpath_5)
    unlink(gsub("dat$", "hdr", exp_outpath_5))
    sen2r(
      gui = FALSE,
      online = FALSE,
      step_atmcorr = "l2a", # to avoid checks on Sen2Cor
      extent = system.file("extdata/vector/scalve.kml", package = "sen2r"),
      extent_name = "Scalve",
      extent_as_mask = TRUE,
      timewindow = as.Date("2020-08-01"),
      list_prods = c("BOA", "SCL", "WVP", "AOT", "CLD"),
      mask_type = "cloud_high_proba",
      outformat = "ENVI",
      path_l1c = safe_dir,
      path_l2a = safe_dir,
      path_out = outdir_5,
      thumbnails = FALSE
    )
    expect_true(all(file.exists(exp_outpath_5)))
    
    # test on raster metadata
    exp_meta_r <- raster_metadata(exp_outpath_5)
    testthat::expect_equal(
      exp_meta_r[,c("size.x", "size.y")], 
      data.table("size.x"=c(1911,1911,1911,956,956), "size.y"=c(1479,1479,1479,740,740))
    )
    testthat::expect_equal(
      exp_meta_r[,c("res.x", "res.y")], 
      data.table("res.x"=c(10,10,10,20,20), "res.y"=c(10,10,10,20,20))
    )
    testthat::expect_equal(exp_meta_r$nbands, c(11,1,1,1,1))
    testthat::expect_equal(
      exp_meta_r[,c("xmin", "xmax", "ymin", "ymax")], 
      data.table(
        "xmin" = c(578590,578590,578590,578580,578580), 
        "xmax" = c(597700,597700,597700,597700,597700),
        "ymin" = c(5086740,5086740,5086740,5086740,5086740),
        "ymax" = c(5101530,5101530,5101530,5101540,5101540)
      )
    )
    expect_equal_crs(st_crs2(exp_meta_r$proj[1]), 32632)
    testthat::expect_equal(
      exp_meta_r$type,
      c("UInt16","UInt16","UInt16","Byte","Byte")
    )
    testthat::expect_equal(exp_meta_r$outformat, rep("ENVI",5))
    
    # test on raster values
    exp_stars <- stars::read_stars(exp_outpath_5[1])
    testthat::expect_true(round(mean(exp_stars[[1]][,,1], na.rm=TRUE)) %in% c(330,325))
    testthat::expect_true(sum(is.na(exp_stars[[1]][,,1])) %in% c(21558,21734))
    rm(exp_stars)
    exp_stars <- stars::read_stars(exp_outpath_5[2])
    testthat::expect_true(round(mean(exp_stars[[1]], na.rm=TRUE)) %in% c(1398,1412,1423))
    testthat::expect_true(sum(is.na(exp_stars[[1]])) %in% c(21558,21734))
    rm(exp_stars)
    exp_stars <- stars::read_stars(exp_outpath_5[3])
    testthat::expect_true(round(mean(exp_stars[[1]], na.rm=TRUE)) %in% c(124,144,145))
    testthat::expect_true(sum(is.na(exp_stars[[1]])) %in% c(0))
    rm(exp_stars)
    exp_stars <- stars::read_stars(exp_outpath_5[5])
    testthat::expect_true(round(mean(exp_stars[[1]], na.rm=TRUE), 2) %in% c(1.02,0.98))
    testthat::expect_true(sum(is.na(exp_stars[[1]])) %in% c(0))
    rm(exp_stars)
    
  }
)