test: added tests for untested files (#1728)

R/minimum.spanning.tree.R

@@ -92,13 +92,13 @@ mst <- function(graph, weights = NULL,
     .Call(R_igraph_minimum_spanning_tree_unweighted, graph)
   } else if (algorithm == "prim") {
     if (is.null(weights) && !"weight" %in% edge_attr_names(graph)) {
-      stop("edges weights must be supplied for Prim's algorithm")
+      cli::cli_abort("edges weights must be supplied for Prim's algorithm.")
     } else if (is.null(weights)) {
       weights <- E(graph)$weight
     }
     on.exit(.Call(R_igraph_finalizer))
     .Call(R_igraph_minimum_spanning_tree_prim, graph, as.numeric(weights))
   } else {
-    stop("Invalid algorithm")
+    cli::cli_abort("Invalid {.arg algorithm}.")
   }
 }

tests/testthat/_snaps/minimum.spanning.tree.md

@@ -0,0 +1,8 @@
+# mst error works
+
+    Code
+      mst(g, algorithm = "undefined")
+    Condition
+      Error in `mst()`:
+      ! Invalid `algorithm`.
+

tests/testthat/test-centralization.R

@@ -0,0 +1,28 @@
+test_that("centr_degree works", {
+  g <- make_star(5, "undirected")
+  g_centr <- centr_degree(g, normalized = FALSE)
+  g_centr_tmax <- centr_degree_tmax(g, loops = FALSE)
+  expect_equal(g_centr$centralization, g_centr_tmax)
+})
+
+test_that("centr_betw works", {
+  g <- make_star(5, "undirected")
+  g_centr <- centr_betw(g, normalized = FALSE)
+  g_centr_tmax <- centr_betw_tmax(g)
+  expect_equal(g_centr$centralization, g_centr_tmax)
+})
+
+test_that("centr_clo works", {
+  g <- make_star(5, "undirected")
+  g_centr <- centr_clo(g, normalized = FALSE)
+  g_centr_tmax <- centr_clo_tmax(g)
+  expect_equal(g_centr$centralization, g_centr_tmax)
+})
+
+
+test_that("centr_eigen works", {
+  g <- make_star(2, "undirected")
+  g_centr <- centr_eigen(g, normalized = FALSE)
+  g_centr_tmax <- centr_eigen_tmax(g)
+  expect_equal(g_centr$centralization, g_centr_tmax)
+})

tests/testthat/test-cocitation.R

@@ -0,0 +1,11 @@
+test_that("cocitation works", {
+  g <- make_full_graph(10, directed = TRUE)
+  cocite_mat <- matrix(8, 10, 10) - diag(8, 10)
+  expect_equal(cocitation(g), cocite_mat)
+})
+
+test_that("bibcoupling works", {
+  g <- make_full_graph(10, directed = TRUE)
+  bib_mat <- matrix(8, 10, 10) - diag(8, 10)
+  expect_equal(bibcoupling(g), bib_mat)
+})