test_that("as_adj_list works", {
g <- sample_gnp(50, 2 / 50)
al <- as_adj_list(g)
g2 <- graph_from_adj_list(al, mode = "all")
expect_isomorphic(g, g2)
expect_true(graph.isomorphic.vf2(g, g2,
vertex.color1 = 1:vcount(g),
vertex.color2 = 1:vcount(g2)
)$iso)
####
el <- as_adj_edge_list(g)
for (i in 1:vcount(g)) {
a <- E(g)[.inc(i)]
expect_equal(length(a), length(el[[i]]), ignore_attr = TRUE)
expect_equal(sort(el[[i]]), sort(a), ignore_attr = TRUE)
}
g <- sample_gnp(50, 4 / 50, directed = TRUE)
el1 <- as_adj_edge_list(g, mode = "out")
el2 <- as_adj_edge_list(g, mode = "in")
for (i in 1:vcount(g)) {
a <- E(g)[.from(i)]
expect_equal(length(a), length(el1[[i]]), ignore_attr = TRUE)
expect_equal(sort(el1[[i]]), sort(a), ignore_attr = TRUE)
}
for (i in 1:vcount(g)) {
a <- E(g)[.to(i)]
expect_equal(length(a), length(el2[[i]]), ignore_attr = TRUE)
expect_equal(sort(el2[[i]]), sort(a), ignore_attr = TRUE)
}
})
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