Nothing
testthat::test_that("format.join_keys for empty set", {
jk <- join_keys()
testthat::expect_identical(format(jk), "An empty join_keys object.")
})
testthat::test_that("format.join_keys with empty parents", {
my_keys <- join_keys(
join_key("d1", "d1", "a", directed = FALSE),
join_key("d2", "d2", "b", directed = FALSE),
join_key("d3", "d3", "c", directed = FALSE),
join_key("d1", "d2", "ab", directed = FALSE),
join_key("d2", "d3", "ac", directed = FALSE)
)
testthat::expect_identical(
format(my_keys),
paste(
"A join_keys object containing foreign keys between 3 datasets:",
"d1: [a]", " <-> d2: [ab]", "d2: [b]", " <-> d1: [ab]", " <-> d3: [ac]",
"d3: [c]", " <-> d2: [ac]",
sep = "\n"
)
)
})
testthat::test_that("format.join_keys for parents", {
my_keys <- join_keys(
join_key("d1", "d1", "a"),
join_key("d2", "d2", "b"),
join_key("d3", "d3", "c"),
join_key("d1", "d2", "ab"),
join_key("d2", "d3", "ac")
)
testthat::expect_identical(
format(my_keys),
paste(
"A join_keys object containing foreign keys between 3 datasets:",
"d1: [a]", " <-- d2: [ab]", "d2: [b]", " --> d1: [ab]", " <-- d3: [ac]",
"d3: [c]", " --> d2: [ac]",
sep = "\n"
)
)
})
testthat::test_that("format.join_keys print inferred keys for children sharing parent", {
my_keys <- join_keys(
join_key("d1", "d1", "a"),
join_key("d2", "d2", "b"),
join_key("d3", "d3", "c"),
join_key("d1", "d2", "child-a"),
join_key("d1", "d3", "child-a")
)
testthat::expect_identical(
format(my_keys),
paste(
"A join_keys object containing foreign keys between 3 datasets:",
"d1: [a]", " <-- d2: [child-a]", " <-- d3: [child-a]",
"d2: [b]", " --> d1: [child-a]", " --* (implicit via parent with): d3",
"d3: [c]", " --> d1: [child-a]", " --* (implicit via parent with): d2",
sep = "\n"
)
)
})
testthat::test_that("print.join_keys produces output same as format", {
my_keys <- join_keys(
join_key("d1", "d1", "a"),
join_key("d2", "d2", "b"),
join_key("d3", "d3", "c"),
join_key("d1", "d2", "ab"),
join_key("d2", "d3", "ac")
)
testthat::expect_output(print(my_keys), format(my_keys), fixed = TRUE)
})
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