Nothing
context("lawn_variance")
poly <- lawn_data$polygons_average
pt <- lawn_data$points_average
a <- lawn_variance(poly, pt, 'population', 'variance')
test_that("lawn_variance returns correct classes", {
expect_is(a, "featurecollection")
expect_is(a$type, "character")
expect_is(a$features, "data.frame")
expect_is(a$features$geometry$type, "character")
expect_is(a$features$geometry$coordinates[[1]], "array")
expect_equal(a$features$geometry$type[1], "Polygon")
})
test_that("cellWidth parameter works as expected", {
expect_equal(
length(na.omit(lawn_variance(poly, pt, 'population2')$features$properties$variance)),
0
)
expect_named(lawn_variance(poly, pt, 'population', 'bears')$features$properties,
c('values', 'bears'))
})
test_that("lawn_variance fails correctly", {
# missing arguments
expect_error(lawn_variance(), "argument \"in_field\" is missing, with no default")
# wrong in_field param leads to no ouput for max
expect_equal(
length(na.omit(lawn_variance(poly, pt, 'population2')$features$properties$variance)),
0
)
# can't pass in a character string to cellWidth
expect_error(lawn_variance(poly, "{}", 'population', 'max'))
# can't pass in a character string to cellWidth
expect_error(lawn_variance(poly, "{}", 'population', 'max', lint = TRUE),
'Line 1 - "type" member required')
})
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