test: create unit tests instead of snaps 🧪

loreabad6 · Oct 9, 2024 · 8bd9c34 · 8bd9c34
1 parent cffc0a2
commit 8bd9c34
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Showing 2 changed files with 44 additions and 94 deletions.
diff --git a/tests/testthat/_snaps/summarise_geometry.md b/tests/testthat/_snaps/summarise_geometry.md
diff --git a/tests/testthat/test-summarise_geometry.R b/tests/testthat/test-summarise_geometry.R
@@ -1,9 +1,47 @@
-test_that("summarise_geometry_* functions works as expected", {
-  expect_snapshot(summarise_geometry_bbox(polygons))
-  expect_snapshot(summarise_geometry_union(polygons))
-  expect_snapshot(summarise_geometry_centroid(polygons))
-  expect_snapshot(summarise_geometry_bbox(polygons, rotated = TRUE))
-  expect_snapshot(summarise_geometry_convex_hull(polygons))
+test_that("summarise_geometry_* functions outputs the
+          expected number of groups", {
+  expect_equal(length(summarise_geometry_bbox(polygons)), 5)
+  expect_equal(length(summarise_geometry_union(polygons)), 5)
+  expect_equal(length(summarise_geometry_centroid(polygons)), 5)
+  expect_equal(length(summarise_geometry_convex_hull(polygons)), 5)
+  expect_equal(
+    length(suppressWarnings(
+      summarise_geometry_bbox(polygons, rotated = TRUE)
+    )), 5)
+})
+
+test_that("summarise_geometry_* functions outputs the
+          expected geometry type", {
+  expect_equal(as.character(unique(st_geometry_type(
+    summarise_geometry_bbox(polygons)))), "POLYGON")
+  expect_equal(as.character(unique(st_geometry_type(
+    summarise_geometry_union(polygons)))), "POLYGON")
+  expect_equal(as.character(unique(st_geometry_type(
+    summarise_geometry_centroid(polygons)))), "POINT")
+  expect_equal(as.character(unique(st_geometry_type(
+    summarise_geometry_convex_hull(polygons)))), "POLYGON")
+  expect_equal(as.character(unique(st_geometry_type(
+    suppressWarnings(summarise_geometry_bbox(polygons, rotated = TRUE))))),
+    "POLYGON")
+})
+
+test_that("summarise_geometry_* functions outputs the
+          expected bounding box", {
+  expect_equal(as.vector(st_bbox(summarise_geometry_bbox(polygons))),
+               c(-0.2974337, -0.0029756, 0.9730806, 1.1535583))
+  expect_equal(as.vector(st_bbox(summarise_geometry_union(polygons))),
+               c(-0.2974337, -0.0029756,  0.9730806,  1.1535583))
+  expect_equal(as.vector(st_bbox(summarise_geometry_centroid(polygons))),
+               c(-0.002543201 , 0.177720021, 0.752585036, 0.901858839))
+  expect_equal(as.vector(st_bbox(summarise_geometry_convex_hull(polygons))),
+               c(-0.2974337, -0.0029756,  0.9730806,  1.1535583))
+  expect_equal(as.vector(st_bbox(suppressWarnings(
+    summarise_geometry_bbox(polygons, rotated = TRUE)))),
+               c(-0.41571489, -0.01302435,  0.98811672,  1.16517691))
+})
+
+test_that("providing a vector to summarise_geoemtry is supported
+          with a warning", {
   expect_warning(
     summarise_geometry_union(polygons, group_id = rep(1:5, times = 5)),
     "assuming correct order and unique timestamps per group"