From 11ca89a2fd22c1ea732bf19fe87733c618147cb0 Mon Sep 17 00:00:00 2001
From: Ichthyostega <prg@ichthyostega.de>
Date: Sat, 29 Aug 2015 19:07:51 +0200
Subject: [PATCH] cover usage of predicate in unit test

---
 tests/library/variant-test.cpp | 30 ++++++++++++++++++++++++++++++
 1 file changed, 30 insertions(+)

diff --git a/tests/library/variant-test.cpp b/tests/library/variant-test.cpp
index f6d91d2a2..187bebac0 100644
--- a/tests/library/variant-test.cpp
+++ b/tests/library/variant-test.cpp
@@ -79,6 +79,7 @@ namespace test{
         {
           createVariant();
           accessVariant();
+          acceptPredicate();
           verifyAssignment();
         }
       
@@ -206,6 +207,35 @@ namespace test{
         }
       
       
+      void
+      acceptPredicate()
+        {
+          const TestVariant v1(12);
+          const TestVariant v2(string("123"));
+          const TestVariant v3(Time::NEVER);
+          
+          struct Checker
+            : TestVariant::Predicate
+            {
+              bool handle (int const& i)    { return i % 2; }
+              bool handle (string const& s) { return s.length() % 2; }
+            }
+            check;
+          
+          CHECK (12 == v1.get<int>());
+          CHECK ("123" == v2.get<string>());
+          CHECK (Time::NEVER == v3.get<Time>());
+          
+          CHECK (!v1.accept(check));
+          CHECK ( v2.accept(check));
+          CHECK (!v3.accept(check));
+          
+          CHECK (12 == v1.get<int>());
+          CHECK ("123" == v2.get<string>());
+          CHECK (Time::NEVER == v3.get<Time>());
+        }
+      
+      
       void
       verifyAssignment()
         {