Initial import

tests/readme.txt

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+Note: Most test cases are not up to date to the current Nimrod
+version. Only ``thallo`` is frequently tested! The best test is
+to bootstrap, anyway.
+
+This directory contains the test cases.
+Each test must have a filename of the form: ``t*.nim``
+
+The testcases may contain the directives ``#ERROR``, ``#ERROR_IN``, 
+``#ERROR_MSG`` or ``#OUT``.
+``#ERROR`` is used to indicate that the compiler should report
+an error in the marked line (the line that contains the ``#ERROR``
+directive.)
+The format for ``#ERROR_IN`` is::
+
+     #ERROR_IN filename linenumber
+
+You can omit the extension of the filename (``.nim`` is then assumed).
+The format for ``#ERROR_MSG`` is::
+
+     #ERROR_MSG message
+
+This directive specifies the error message Nimrod shall produce.
+
+Tests which contain none of the ``#ERROR*`` directives should compile. 
+Thus they are executed after successful compilation and their output 
+is compared to the expected results (specified with the ``#OUT`` 
+directive). Tests which require user interaction are currently not 
+possible.