Nothing
library(wkb)
library(sp)
context("Conversion to and from WKB MultiPoint representations")
# create a list of objects of class SpatialPoints
Sp1 <- SpatialPoints(data.frame(x=1, y=3))
Sp2 <- SpatialPoints(data.frame(x=2, y=2))
refobj <- list(Sp1, Sp2)
# create an AsIs list of little-endian WKB geometry representations of type MultiPoint
refwkb <- I(list(
as.raw(c(0x01, 0x04, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x01, 0x01,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xf0, 0x3f,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x08, 0x40)),
as.raw(c(0x01, 0x04, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x01, 0x01,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x40,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x40))
))
# create an AsIs list of big-endian WKB geometry representations of type MultiPoint
refwkbbe <- I(list(
as.raw(c(0x00, 0x00, 0x00, 0x00, 0x04, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00,
0x00, 0x00, 0x01, 0x3f, 0xf0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x40, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00)),
as.raw(c(0x00, 0x00, 0x00, 0x00, 0x04, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00,
0x00, 0x00, 0x01, 0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00))
))
test_that("little-endian WKB MultiPoint representation converts to list of SpatialPoints objects", {
# convert little-endian WKB MultiPoint representation to list of SpatialPoints objects
obj <- readWKB(refwkb)
# test
expect_equal(obj, refobj)
})
test_that("list of SpatialPoints objects converts to little-endian WKB MultiPoint representation", {
# convert list of SpatialPoints objects to little-endian WKB MultiPoint representation
wkb <- writeWKB(refobj)
# test
expect_equal(wkb, refwkb)
})
test_that("big-endian WKB MultiPoint representation converts to list of SpatialPoints objects", {
# convert big-endian WKB MultiPoint representation to list of SpatialPoints objects
obj <- readWKB(refwkbbe)
# test
expect_equal(obj, refobj)
})
test_that("list of SpatialPoints objects converts to big-endian WKB MultiPoint representation", {
# convert list of SpatialPoints objects to big-endian WKB MultiPoint representation
wkbbe <- writeWKB(refobj, endian = "big")
# test
expect_equal(wkbbe, refwkbbe)
})
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