1const std = @import("std");
 2const math = std.math;
 3const testing = std.testing;
 4
 5test "fn reflection" {
 6    try testing.expect(@typeInfo(@TypeOf(testing.expect)).@"fn".params[0].type.? == bool);
 7    try testing.expect(@typeInfo(@TypeOf(testing.tmpDir)).@"fn".return_type.? == testing.TmpDir);
 8
 9    try testing.expect(@typeInfo(@TypeOf(math.Log2Int)).@"fn".is_generic);
10}
11
12// test