1 files changed, 84 insertions, 0 deletions
diff --git a/v_windows/v/old/vlib/builtin/sorting_test.v b/v_windows/v/old/vlib/builtin/sorting_test.v
new file mode 100644
index 0000000..4d0ff9f
--- /dev/null
+++ b/v_windows/v/old/vlib/builtin/sorting_test.v
@@ -0,0 +1,84 @@
+const (
+	unsorted    = [2, 30, 10, 20, 1]
+	sorted_asc  = [1, 2, 10, 20, 30]
+	sorted_desc = [30, 20, 10, 2, 1]
+)
+
+fn test_sorting_simple() {
+	mut a := unsorted.clone()
+	a.sort()
+	eprintln(' a: $a')
+	assert a == sorted_asc
+}
+
+fn test_sorting_with_condition_expression() {
+	mut a := unsorted.clone()
+	a.sort(a > b)
+	eprintln(' a: $a')
+	assert a == sorted_desc
+}
+
+fn test_sorting_primitives_with_condition_expression() {
+	mut x := ['9', '87', '3210', '654']
+	x.sort(a.len < b.len)
+	assert x == ['9', '87', '654', '3210']
+}
+
+// fn get_score(word string) int {
+// 	mut total := 0
+// 	for letter in word {
+// 		total += int(letter) - 97
+// 	}
+// 	return total
+// }
+
+// fn test_sorting_with_fn_call_in_condition_expression() {
+// 	mut words := ['aaaa', 'a', 'b', 'foo', 'bar']
+// 	words.sort(get_score(a) < get_score(b))
+// }
+
+fn mysort(mut a []int) {
+	a.sort()
+}
+
+fn test_sorting_by_passing_a_mut_array_to_a_function() {
+	mut a := unsorted.clone()
+	mysort(mut a)
+	eprintln(' a: $a')
+	assert a == sorted_asc
+}
+
+/*
+fn test_sorting_by_passing_an_anonymous_sorting_function() {
+	mut a := unsorted
+	a.sort(fn(a &int, b &int) int {	return *b - *a })
+	eprintln(' a: $a')
+	assert a == sort_desc
+}
+*/
+fn test_sorting_u64s() {
+	mut a := [u64(3), 2, 1, 9, 0, 8]
+	a.sort()
+	eprintln(' a: $a')
+	assert a == [u64(0), 1, 2, 3, 8, 9]
+	a.sort(a > b)
+	eprintln(' a: $a')
+	assert a == [u64(9), 8, 3, 2, 1, 0]
+}
+
+struct User {
+	age  int
+	name string
+}
+
+fn g(mut users []User) {
+	users.sort(a.name > b.name)
+}
+
+fn f(mut users []User) {
+	users.sort(a.name < b.name)
+}
+
+fn z(mut users []User) {
+	users.sort(a.name < b.name)
+}