Nothing
library(igraph)
test_that("one vertex best solution is returned", {
solver <- rnc_solver(max_iterations = 100)
g <- igraph::make_graph(c("A", "B"), directed = FALSE)
V(g)$weight <- c(5, 5)
E(g)$weight <- -7
solution <- solve_mwcsp(solver, g)
expect_equal(solution$weight, 5)
})
test_that("sgmwcs rnc solver works on specific test", {
solver <- rnc_solver(max_iterations = 100)
g <- igraph::make_ring(5)
V(g)$weight <- 1:-3
E(g)$weight <- 1
solution <- solve_mwcsp(solver, g)
expect_equal(solution$weight, 2)
expect_equal(solution$solved_to_optimality, TRUE)
expect_true(igraph::is_connected(solution$graph))
})
test_that("sgmwcs rnc solver does not crush on GAM instances", {
solver <- rnc_solver(max_iterations = 100)
solution <- solve_mwcsp(solver, gam_example)
expect_gte(length(V(solution$graph)), 0)
expect_true(igraph::is_connected(solution$graph))
})
test_that("sgmwcs rnc solver gives good solution for a GAM instance", {
rnc <- rnc_solver(max_iterations = 100)
solution <- solve_mwcsp(rnc, gmwcs_example)
expect_gte(get_weight(solution$graph), 200)
expect_true(igraph::is_connected(solution$graph))
})
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