1 files changed, 70 insertions, 0 deletions
diff --git a/t/basic.t b/t/basic.t
new file mode 100644
index 0000000..62d92f5
--- /dev/null
+++ b/t/basic.t
@@ -0,0 +1,70 @@
+#!/usr/bin/env perl
+use strict;
+use warnings;
+use lib 't/basic';
+use Test::More;
+
+use circular::require ();
+
+circular::require->unimport;
+
+{
+    my $warnings;
+    local $SIG{__WARN__} = sub { $warnings .= $_[0] };
+    use_ok('Foo');
+    is($warnings, "Circular require detected: Foo.pm (from Baz)\nCircular require detected: Baz.pm (from Bar)\n", "correct warnings");
+    clear();
+}
+
+{
+    my $warnings;
+    local $SIG{__WARN__} = sub { $warnings .= $_[0] };
+    use_ok('Bar');
+    is($warnings, "Circular require detected: Baz.pm (from Foo)\nCircular require detected: Bar.pm (from Baz)\n", "correct warnings");
+    clear();
+}
+
+{
+    my $warnings;
+    local $SIG{__WARN__} = sub { $warnings .= $_[0] };
+    use_ok('Baz');
+    is($warnings, "Circular require detected: Baz.pm (from Foo)\n", "correct warnings");
+    clear();
+}
+
+circular::require->import;
+
+{
+    my $warnings;
+    local $SIG{__WARN__} = sub { $warnings .= $_[0] };
+    use_ok('Foo');
+    is($warnings, undef, "correct warnings");
+    clear();
+}
+
+{
+    my $warnings;
+    local $SIG{__WARN__} = sub { $warnings .= $_[0] };
+    use_ok('Bar');
+    is($warnings, undef, "correct warnings");
+    clear();
+}
+
+{
+    my $warnings;
+    local $SIG{__WARN__} = sub { $warnings .= $_[0] };
+    use_ok('Baz');
+    is($warnings, undef, "correct warnings");
+    clear();
+}
+
+sub clear {
+    for (qw(Foo Bar Baz)) {
+        no strict 'refs';
+        delete $::{$_};
+        delete ${$_ . '::'}{quux};
+        delete $INC{"$_.pm"};
+    }
+}
+
+done_testing;