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test_that("layout_with_pmds works", {
g <- igraph::make_graph(~ a - -b - -c - -d:e:f)
expect_is(layout_with_pmds(g, 5), "matrix")
expect_equal(ncol(layout_with_pmds(g, 5, dim = 3)), 3)
expect_error(layout_with_pmds(g))
expect_error(layout_with_pmds(g, 10))
expect_error(layout_with_pmds(1))
expect_no_error(layout_with_pmds(g, pivots = 5, weights = rep(4, 5)))
g <- igraph::make_full_graph(10) + igraph::make_full_graph(10)
expect_error(layout_with_pmds(g, 10))
})
test_that("layout_with_sparse_stress works", {
g <- igraph::make_graph(~ a - -b - -c - -d:e:f)
expect_is(layout_with_sparse_stress(g, 5), "matrix")
expect_error(layout_with_sparse_stress(g))
expect_error(layout_with_sparse_stress(g, 10))
expect_error(layout_with_sparse_stress(1))
g <- igraph::make_full_graph(10) + igraph::make_full_graph(10)
expect_error(layout_with_sparse_stress(g, 10))
g <- igraph::make_full_graph(10)
expect_warning(layout_with_sparse_stress(g, pivots = 5, weights = rep(4, 45)))
})
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