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#!/usr/bin/env Rscript
test_that("test RasterLayer", {
library("raster")
raster.object <- raster::raster(nrow=3, ncol=3, xmn=0, xmx=3, ymn=0, ymx=3, crs=NA)
raster.object[] <- c(3,2,1,4,3,2,5,4,3)
result.layer <- rescale(raster.object)
standard.result.layer <- raster(nrow=3, ncol=3, xmn=0, xmx=3, ymn=0, ymx=3, crs=NA)
standard.result.layer[] <- c(0.6,0.4,0.2,0.8,0.6,0.4,1.00,0.8,0.6)
extent.result <- compareRaster(result.layer, standard.result.layer)
if (extent.result) {
vector.one <- values(result.layer)
vector.two <- values(standard.result.layer)
expect_that(vector.one, equals(vector.two))
} else {
expect_that(extent.result, is_true())
}
})
test_that("test RasterStack (simple)", {
library("raster")
env.one <- raster::raster(nrow=3, ncol=3, xmn=0, xmx=3, ymn=0, ymx=3, crs=NA)
env.one[] <- c(3,2,1,4,3,2,5,4,3)
env.two <- raster::raster(nrow=3, ncol=3, xmn=0, xmx=3, ymn=0, ymx=3, crs=NA)
env.two[] <- c(3,3,5,5,3,4,9,5,3)
env.stack <- raster::stack(list(env_one=env.one, env_two=env.two))
result.stack <- rescale(env.stack)
layer.number <- nlayers(result.stack)
expect_that(layer.number, equals(2))
})
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