context("Vertex and edge sequence quirks") test_that("graph is not updated if not in LHS", { g <- make_(ring(10), with_vertex_(name = LETTERS[1:10]), with_edge_(weight = 1:10)) vs <- V(g)[1:5] vs$name <- letters[1:5] expect_equal(V(g)$name, LETTERS[1:10]) es <- E(g) es$weight <- 0 expect_equal(E(g)$weight, 1:10) }) test_that("graph is updated if in LHS", { g <- make_(ring(10), with_vertex_(name = LETTERS[1:10]), with_edge_(weight = 1:10)) V(g)[1:5]$name <- letters[1:5] expect_equal(V(g)$name, c(letters[1:5], LETTERS[6:10])) E(g)[1:5]$weight <- 0 expect_equal(E(g)$weight, c(rep(0, 5), 6:10)) })
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