context("graphNEL conversion")
test_that("graphNEL conversion works", {
if (!requireNamespace("graph", quietly = TRUE)) skip("No graph package")
library(graph, warn.conflicts=FALSE)
g <- sample_gnp(100, 5/100)
N <- as_graphnel(g)
g2 <- graph_from_graphnel(N)
gi <- graph.isomorphic.vf2(g, g2)
expect_true(gi$iso)
expect_that(gi$map12, equals(1:vcount(g)))
expect_that(gi$map21, equals(1:vcount(g)))
## Attributes
V(g)$name <- as.character(vcount(g):1)
E(g)$weight <- sample(1:10, ecount(g), replace=TRUE)
g$name <- "Foobar"
N <- as_graphnel(g)
g2 <- graph_from_graphnel(N)
expect_true(graph.isomorphic(g, g2))
expect_that(V(g)$name, equals(V(g2)$name))
A <- as_adj(g, attr="weight", sparse=FALSE)
A2 <- as_adj(g2, attr="weight", sparse=FALSE)
expect_that(A, equals(A))
expect_that(g$name, equals(g2$name))
suppressWarnings(unloadNamespace("graph"))
})
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