1 files changed, 28 insertions, 0 deletions
diff --git a/t/random-string-from.t b/t/random-string-from.t
new file mode 100644
index 0000000..b4abc89
--- /dev/null
+++ b/t/random-string-from.t
@@ -0,0 +1,28 @@
+#!/usr/bin/env perl
+use strict;
+use warnings;
+use Test::More;
+use Test::Deep;
+use Test::Fatal;
+
+use Games::Word qw(random_string_from);
+
+is(random_string_from("", 0), "",
+   "0 length random_string_from an empty string");
+like(
+    exception { random_string_from("", 5) },
+    qr/invalid letter list/,
+    "random_string_from an empty string"
+);
+is(random_string_from("abcde", 0), "",
+   "0 length random_string_from");
+my @letters = qw/a b c d e/;
+for my $i (1..10) {
+    my $str = random_string_from join('', @letters), $i;
+    is(length $str, $i, "random_string_from returns the correct length");
+    my $bag = subbagof();
+    $bag->add(@letters) for 1..$i;
+    cmp_deeply([split(//, $str)], $bag, "random test of random_string_from");
+}
+
+done_testing;