Nothing
test_that("geos_unnest() works", {
expect_identical(
geos_unnest(NA_character_),
structure(list(NULL), class = "geos_geometry", lengths = 1L)
)
unnested <- geos_unnest(
"GEOMETRYCOLLECTION(MULTIPOINT (30 10, 10 10), LINESTRING (0 0, 1 1), GEOMETRYCOLLECTION EMPTY)",
keep_multi = FALSE, keep_empty = FALSE, max_depth = 2
)
expect_identical(
geos_write_wkt(unnested),
c("POINT (30 10)", "POINT (10 10)", "LINESTRING (0 0, 1 1)")
)
expect_identical(attr(unnested, "lengths"), 3L)
unnested <- geos_unnest(
"GEOMETRYCOLLECTION(MULTIPOINT (30 10, 10 10), LINESTRING (0 0, 1 1), GEOMETRYCOLLECTION EMPTY)",
keep_multi = FALSE, keep_empty = TRUE, max_depth = 2
)
expect_identical(
geos_write_wkt(unnested),
c("POINT (30 10)", "POINT (10 10)", "LINESTRING (0 0, 1 1)", "GEOMETRYCOLLECTION EMPTY")
)
expect_identical(attr(unnested, "lengths"), 4L)
})
test_that("geos_unnest() propagates CRS", {
expect_identical(
wk::wk_crs(geos_unnest(as_geos_geometry("POINT (1 2)", crs = 784))),
784
)
expect_identical(
wk::wk_crs(geos_unnest(as_geos_geometry("GEOMETRYCOLLECTION(POINT (1 2))", crs = 784))),
784
)
})
test_that("wk*_unnest(max_depth) is respected", {
unnested <- geos_unnest(
"GEOMETRYCOLLECTION (GEOMETRYCOLLECTION (GEOMETRYCOLLECTION (POINT (0 1))))",
max_depth = 0
)
expect_identical(
geos_write_wkt(unnested),
"GEOMETRYCOLLECTION (GEOMETRYCOLLECTION (GEOMETRYCOLLECTION (POINT (0 1))))"
)
expect_identical(attr(unnested, "lengths"), 1L)
unnested <- geos_unnest(
"GEOMETRYCOLLECTION (GEOMETRYCOLLECTION (GEOMETRYCOLLECTION (POINT (0 1))))",
max_depth = 1
)
expect_identical(
geos_write_wkt(unnested),
"GEOMETRYCOLLECTION (GEOMETRYCOLLECTION (POINT (0 1)))"
)
expect_identical(attr(unnested, "lengths"), 1L)
unnested <- geos_unnest(
"GEOMETRYCOLLECTION (GEOMETRYCOLLECTION (GEOMETRYCOLLECTION (POINT (0 1))))",
max_depth = 2
)
expect_identical(
geos_write_wkt(unnested),
"GEOMETRYCOLLECTION (POINT (0 1))"
)
expect_identical(attr(unnested, "lengths"), 1L)
unnested <- geos_unnest(
"GEOMETRYCOLLECTION (GEOMETRYCOLLECTION (GEOMETRYCOLLECTION (POINT (0 1))))",
max_depth = 3
)
expect_identical(
geos_write_wkt(unnested),
"POINT (0 1)"
)
expect_identical(attr(unnested, "lengths"), 1L)
unnested <- geos_unnest(
"GEOMETRYCOLLECTION (GEOMETRYCOLLECTION (GEOMETRYCOLLECTION (POINT (0 1))))",
max_depth = 4
)
expect_identical(
geos_write_wkt(unnested),
"POINT (0 1)"
)
expect_identical(attr(unnested, "lengths"), 1L)
})
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