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diff --git a/tests/lib/unit++/tester.h b/tests/lib/unit++/tester.h
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+// Copyright (C) 2001 Claus Dr�by
+// Terms of use are in the file COPYING
+#ifndef _UNITPP_TESTER_H
+#define _UNITPP_TESTER_H
+#include <stack>
+#ifdef __UNITPP
+#include "unit++.h"
+#else
+#include <unit++/unit++.h>
+#endif
+namespace unitpp {
+/// A mostly internal class for keeping score.
+class res_cnt {
+	int ok, fail, err;
+public:
+	/// Create a 0 count.
+	res_cnt() : ok(0), fail(0), err(0) {}
+	/// Count one ok.
+	void add_ok() { ++ok; }
+	/// Count one fail.
+	void add_fail() { ++fail; }
+	/// Count one error.
+	void add_err() { ++err; }
+	/// get ok count.
+	int n_ok() { return ok; }
+	/// get fail count.
+	int n_fail() { return fail; }
+	/// get error count.
+	int n_err() { return err; }
+	/// get total count.
+	int n() { return ok+fail+err; }
+};
+/**
+ * The standard text based tester. It implements the visitor pattern for the
+ * test and suite classes, and executes each test case in a depth first
+ * traversal, toting the score of test cases.
+ *
+ * The class might be used for test executers aimed at other environments,
+ * e.g. a GUI based version.
+ *
+ * Please note that this class is automagically instantiated by the main
+ * method supplied in the library. This means that you might very well do all
+ * your testing without directly laying hans on this fellow.
+ */
+class tester : public visitor {
+	std::ostream& os;
+	bool verbose; // list succeded tests
+	std::stack<res_cnt> accu;
+	res_cnt n_suite, n_test;
+	void disp(test& t, const std::string&);
+	void write(test& t);
+	void write(test& t, assertion_error& e);
+	void write(test& t, std::exception& e);
+	void write(test& t, int dummy);
+public:
+	/**
+	 * Create a text tester.
+	 * \param os the stream to write results to.
+	 * \param verbose whether to report on succesful tests
+	 */
+	tester(std::ostream& os, bool verbose = false) : os(os), verbose(verbose) {}
+	/// Get the score for tests
+	res_cnt res_tests() { return n_test; }
+	/// Get the score for suites
+	res_cnt res_suites() { return n_suite; }
+	/// Write the summary
+	virtual void summary();
+	/// Part of the visitor pattern.
+	virtual void visit(test&);
+	/// Part of the visitor pattern.
+	virtual void visit(suite&);
+	/// Part of the visitor pattern; visit to suite after children.
+	virtual void visit(suite& t, int);
+};
+
+}
+#endif