add tests

test/test_all.scad

@@ -62,6 +62,7 @@ include <test_sphere_spiral_extrude.scad>;
 include <test_path_extrude.scad>;
 
 // Utilities
+
 include <util/test_lerp.scad>;
 include <util/test_sub_str.scad>;
 include <util/test_split_str.scad>;
@@ -82,6 +83,10 @@ include <util/set/test_hashset.scad>;
 include <util/map/test_hashmap.scad>;
 include <util/test_sorted.scad>;
 include <util/test_binary_search.scad>;
+include <util/test_contains.scad>;
+include <util/test_flat.scad>;
+include <util/test_sum.scad>;
+include <util/test_swap.scad>;
 
 // Voxel
 include <voxel/test_vx_bezier.scad>;

test/util/test_contains.scad

@@ -0,0 +1,12 @@
+use <voxel/vx_circle.scad>;
+use <util/contains.scad>;
+
+module test_contains() {
+    echo("==== test_contains ====");
+
+    pts = vx_circle(10);
+    assert(contains(pts, [2, -10])); 
+    assert(!contains(pts, [0, 0]));  
+}
+
+test_contains();

test/util/test_flat.scad

@@ -0,0 +1,28 @@
+use <util/flat.scad>;
+
+module test_flat() {
+    echo("==== test_flat ====");
+    vt = [[[[1, 2], [3, 4]], [[5, 6], [7, 8]]]];
+
+    assert(
+        flat([1, 2, [3, 4]]) == [1, 2, 3, 4]
+    );
+
+    assert(
+        flat([[1, 2], [3, 4]]) == [1, 2, 3, 4]
+    );
+
+    assert(
+        flat([[[[1, 2], [3, 4]], [[5, 6], [7, 8]]]]) == [[[1, 2], [3, 4]], [[5, 6], [7, 8]]]
+    );
+
+    assert(
+        flat([[[[1, 2], [3, 4]], [[5, 6], [7, 8]]]], 2) == [[1, 2], [3, 4], [5, 6], [7, 8]]
+    );
+
+    assert(
+        flat([[[[1, 2], [3, 4]], [[5, 6], [7, 8]]]], 3) == [1, 2, 3, 4, 5, 6, 7, 8]
+    );
+}
+
+test_flat();

test/util/test_sum.scad

@@ -0,0 +1,10 @@
+use <util/sum.scad>;
+
+module test_sum() {
+    echo("==== test_sum ====");
+    
+    assert(sum([1, 2, 3, 4, 5]) == 15);
+    assert(sum([[1, 2, 3], [4, 5, 6]]) == [5, 7, 9]);
+}
+
+test_sum();

test/util/test_swap.scad

@@ -0,0 +1,9 @@
+use <util/swap.scad>;
+
+module test_swap() {
+    echo("==== test_swap ====");
+    
+    assert(swap([10, 20, 30, 40], 1, 3) == [10, 40, 30, 20]);
+}
+
+test_swap();