[rt.cpan.org #60622] Handle conditional loading

[p5sagit/App-FatPacker.git] / t / trace.t

diff --git a/t/trace.t b/t/trace.t
new file mode 100644 (file)
index 0000000..154e83c
--- /dev/null
+++ b/t/trace.t
@@ -0,0 +1,29 @@
+#!perl
+use Test::More;
+
+test_trace("t/mod/a.pm" => ("t/mod/b.pm", "t/mod/c.pm"));
+test_trace("t/mod/b.pm" => ("t/mod/c.pm"));
+test_trace("t/mod/c.pm" => ());
+
+# Attempts to conditionally load a module that isn't present
+test_trace("t/mod/cond.pm" => ());
+
+done_testing;
+
+sub test_trace {
+  my($file, @loaded) = @_;
+  local $Test::Builder::Level = $Test::Builder::Level + 1;
+
+  system($^X, "-Mblib", "-MApp::FatPacker::Trace", $file);
+
+  open my $trace, "<", "fatpacker.trace";
+  while(<$trace>) {
+    chomp;
+    my $load = $_;
+    @loaded = grep { $load ne $_ } @loaded;
+  }
+
+  ok !@loaded, "All expected modules loaded for $file";
+  unlink "fatpacker.trace";
+}
+