better std.package unittest

diff --git a/std/package.d b/std/package.d
index 8298837c4..a4d44adc9 100644
--- a/std/package.d
+++ b/std/package.d
@@ -28,7 +28,65 @@ module std;
     assert(10.iota.map!(partial!(pow, 2)).sum == 1023);
 }

+///Warning: EXTREMELY hacky code below.
+unittest
+{
+    import std.file;
+    import std.path;
+    import std.array;
+    import std.algorithm;
+
+    string[] importedPackages = import("package.d").splitLines
+        .retro.until("//++=MARK=++//").array
+        .map!"a.stripLeft[0 .. $-1]".array;
+    string[][] modules;
+    foreach (i; dirEntries(".", SpanMode.breadth))
+    {
+        string[] pathSections = pathSplitter(i.name)
+            .retro.until("std", No.openRight).array.retro.array;
+        if (i.attributes.attrIsFile && pathSections.canFind("std")
+                && !pathSections.canFind("experimental")
+                && !pathSections.canFind("internal")
+                && !pathSections.canFind("windows")
+                && pathSections != ["std", "package.d"])
+        {
+            pathSections[$-1] = pathSections[$-1][0 .. $-2];//strip ".d"
+            modules ~= pathSections;
+        }
+    }
+
+    string[][] packageModules = modules.filter!`a[$-1] == "package"`.array;
+    string[] uniqueModules;
+
+    foreach (i; modules)
+    {
+        bool included = false;
+
+        foreach (j; packageModules) {
+            if (i.canFind(j[0 .. $-1]))
+            {
+                if (!uniqueModules.canFind(j[0 .. $-1].join(".")))
+                    uniqueModules ~= j[0 .. $-1].join(".");
+                included = true;
+            }
+        }
+        if (!included)
+            uniqueModules ~= i.join(".");
+    }
+
+    bool notAllImported = false;
+    foreach (i; uniqueModules)
+    {
+        if (!importedPackages.canFind(i)) {
+            stderr.writeln(i, " is not imported in std.package.");
+            notAllImported = true;
+        }
+    }
+    assert(!notAllImported, "Not all modules are imported in std.package (see above messages).");
+}
+
 public import
+//++=MARK=++//
  std.algorithm,
  std.array,
  std.ascii,