/usr/lib/R/site-library/igraph/tests/test_are.connected.R is in r-cran-igraph 0.7.1-1.
This file is owned by root:root, with mode 0o644.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 | context("are.connected")
test_that("are.connected works", {
library(igraph)
g <- graph.formula( A-B-C, B-D )
expect_that(are.connected(g, "A", "B"), is_true())
expect_that(are.connected(g, "B", "A"), is_true())
expect_that(are.connected(g, "A", "D"), is_false())
g2 <- graph( c(1,2, 2,3, 3,4), dir=FALSE )
expect_that(are.connected(g2, 1,2), is_true())
expect_that(are.connected(g2, 3,2), is_true())
expect_that(are.connected(g2, 4,1), is_false())
g3 <- graph.formula( A-+B-+C, B-+D )
expect_that(are.connected(g3, "A", "C"), is_false())
expect_that(are.connected(g3, "A", "B"), is_true())
expect_that(are.connected(g3, "B", "A"), is_false())
})
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