/usr/lib/R/site-library/igraph/tests/test_bug-1073705-indexing.R is in r-cran-igraph 0.7.1-1.
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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("Bug 1073705")
test_that("Weighted indexing does not remove edges", {
library(igraph)
g <- graph.ring(10)
g[1, 2, attr="weight"] <- 0
expect_that("weight" %in% list.edge.attributes(g), is_true())
expect_that(E(g)$weight, equals(c(0, rep(NA, 9))))
el <- get.edgelist(g)
g[from=el[,1], to=el[,2], attr="sim"] <- rep(0:1, length=ecount(g))
expect_that("sim" %in% list.edge.attributes(g), is_true())
expect_that(E(g)$sim, equals(rep(0:1, 5)))
V(g)$name <- letters[seq_len(vcount(g))]
el <- get.edgelist(g)
g[from=el[,1], to=el[,2], attr="sim"] <- rep(1:0, length=ecount(g))
expect_that(E(g)$sim, equals(rep(1:0, 5)))
})
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