Nothing
test_that("OptimInstanceMultiCrit", {
inst = MAKE_INST_2D_2D(20L)
expect_output(print(inst), "OptimInstanceMultiCrit")
expect_r6(inst$archive, "Archive")
expect_data_table(inst$archive$data, nrows = 0L)
expect_identical(inst$archive$n_evals, 0L)
expect_identical(inst$archive$n_batch, 0L)
xdt = data.table(x1 = c(-1, -1, -1), x2 = c(1, 0, -1))
expect_named(inst$eval_batch(xdt), c("y1", "y2"))
expect_data_table(inst$archive$data, nrows = 3L)
expect_equal(inst$archive$data$y1, c(1, 1, 1))
expect_equal(inst$archive$data$y2, c(-1, 0, -1))
expect_identical(inst$archive$n_evals, 3L)
expect_identical(inst$archive$n_batch, 1L)
expect_equal(inst$archive$best()$y2, 0)
expect_null(inst$result)
xdt = data.table(x1 = c(0, 0), x2 = c(list(0), list(0)))
ydt = data.table(y1 = c(-10, -10), y2 = c(10, 10))
inst$assign_result(xdt = xdt, ydt = ydt)
expect_equal(inst$result_x_search_space, xdt)
expect_equal(inst$result_y, ydt)
expect_equal(inst$result_x_domain, replicate(n = 2, list(x1 = 0, x2 = 0), simplify = FALSE))
})
test_that("OptimInstanceMultiCrit with 1 Crit", {
tt = trm("evals", n_evals = 5)
inst = OptimInstanceMultiCrit$new(objective = OBJ_2D, search_space = PS_2D, terminator = tt)
optimizer = OptimizerRandomSearch$new()
optimizer$optimize(inst)
expect_data_table(inst$result_y, ncols = 1)
expect_data_table(inst$result_x_search_space)
})
test_that("Terminator assertions work", {
terminator = trm("perf_reached")
expect_error(MAKE_INST_2D_2D(terminator))
})
test_that("objective_function works", {
terminator = terminator = trm("evals", n_evals = 100)
inst = MAKE_INST_2D_2D(terminator = terminator)
y = inst$objective_function(c(1, 1))
expect_equal(y, c(y1 = 1, y2 = 1))
})
test_that("OptimInstanceMultiCrit works with empty search space", {
fun = function(xs) {
c(y = 10 + sample(c(0, 1), 1), z = 20 + sample(c(0, 1), 1))
}
domain = ps()
codomain = ps(y = p_dbl(tags = "minimize"), z = p_dbl(tags = "maximize"))
# objective
objective = ObjectiveRFun$new(fun, domain, codomain)
expect_numeric(objective$eval(list()))
# instance
instance = OptimInstanceMultiCrit$new(objective, terminator = trm("evals", n_evals = 20))
instance$eval_batch(data.table())
expect_data_table(instance$archive$data, nrows = 1)
# optimizer lenght(y) > 1
instance = OptimInstanceMultiCrit$new(objective, terminator = trm("evals", n_evals = 20))
optimizer = opt("random_search")
optimizer$optimize(instance)
expect_data_table(instance$archive$data, nrows = 20)
expect_equal(instance$result$x_domain[[1]], list())
# optimizer lenght(y) == 1
instance = OptimInstanceMultiCrit$new(objective, terminator = trm("evals", n_evals = 1))
optimizer = opt("random_search")
optimizer$optimize(instance)
expect_data_table(instance$archive$data, nrows = 1)
expect_equal(instance$result$x_domain[[1]], list())
})
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