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test_that("expand completes all values", {
expect_equal(
memdb_frame(x = 1:2, y = 1:2) %>% tidyr::expand(x, y) %>% collect(),
tibble(x = c(1, 1, 2, 2), y = c(1, 2, 1, 2))
)
expect_snapshot(lazy_frame(x = 1, y = 1) %>% tidyr::expand(x, y))
})
test_that("nesting doesn't expand values", {
df <- tibble(x = 1:2, y = 1:2)
expect_equal(
tidyr::expand(memdb_frame(!!!df), nesting(x, y)) %>%
collect(),
df
)
df_lazy <- lazy_frame(!!!df)
expect_snapshot(df_lazy %>% tidyr::expand(nesting(x, y)))
})
test_that("expand accepts expressions", {
df <- lazy_frame(x = 1)
expect_snapshot(tidyr::expand(df, round(x / 2)))
expect_snapshot(tidyr::expand(df, nesting(x_half = round(x / 2), x1 = x + 1)))
})
test_that("works with tidyr::nesting", {
df_lazy <- lazy_frame(x = 1:2, y = 1:2)
expect_snapshot(df_lazy %>% tidyr::expand(tidyr::nesting(x, y)))
})
test_that("expand respects groups", {
df <- tibble(
a = c(1L, 1L, 2L),
b = c(1L, 2L, 1L),
c = c("b", "a", "a")
)
expect_equal(
memdb_frame(!!!df) %>% group_by(a) %>% tidyr::expand(b, c) %>% collect(),
tibble(
a = c(1, 1, 1, 1, 2),
b = c(1, 1, 2, 2, 1),
c = c("b", "a", "b", "a", "a")
) %>%
group_by(a)
)
df_lazy <- lazy_frame(!!!df)
expect_snapshot(df_lazy %>% group_by(a) %>% tidyr::expand(b, c))
})
test_that("NULL inputs", {
expect_snapshot(tidyr::expand(lazy_frame(x = 1), x, y = NULL))
})
test_that("expand() errors when expected", {
expect_snapshot(error = TRUE, tidyr::expand(memdb_frame(x = 1)))
expect_snapshot(error = TRUE, tidyr::expand(memdb_frame(x = 1), x = NULL))
})
test_that("nesting() respects .name_repair", {
expect_snapshot(error = TRUE,
tidyr::expand(
memdb_frame(x = 1, y = 1),
nesting(x, x = x + 1)
)
)
vars <- suppressMessages(
tidyr::expand(
memdb_frame(x = 1, y = 1),
nesting(x, x = x + 1, .name_repair = "unique")
) %>%
op_vars()
)
expect_equal(vars, c("x...1", "x...2"))
})
test_that("expand respect .name_repair", {
vars <- suppressMessages(
memdb_frame(x = integer(), z = integer()) %>%
tidyr::expand(x, z = x, nesting(x), nesting(z), .name_repair = "unique") %>%
op_vars()
)
expect_equal(vars, c("x...1", "z...2", "x...3", "z...4"))
})
# replace_na --------------------------------------------------------------
test_that("replace_na replaces missing values", {
expect_equal(
memdb_frame(x = c(1, NA), y = c(NA, "b")) %>%
tidyr::replace_na(list(x = 0, y = "unknown")) %>%
collect(),
tibble(
x = c(1, 0),
y = c("unknown", "b")
)
)
expect_snapshot(
lazy_frame(x = 1, y = "a") %>% tidyr::replace_na(list(x = 0, y = "unknown"))
)
})
test_that("replace_na ignores missing columns", {
expect_snapshot(lazy_frame(x = 1) %>% tidyr::replace_na(list(not_there = 0)))
})
# complete ----------------------------------------------------------------
test_that("complete completes missing combinations", {
df <- tibble(
x = 1:2,
y = 1:2,
z = c("a", "b")
)
expect_equal(
memdb_frame(!!!df) %>% tidyr::complete(x, y, fill = list(z = "c")) %>% collect(),
tibble(
x = c(1, 1, 2, 2),
y = c(1, 2, 1, 2),
z = c("a", "c", "c", "b")
)
)
df_lazy <- lazy_frame(!!!df)
expect_snapshot(df_lazy %>% tidyr::complete(x, y, fill = list(z = "c")))
})
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