Move prefix-map from build2 to libbutl

1 files changed, 153 insertions, 0 deletions

diff --git a/tests/prefix-map/driver.cxx b/tests/prefix-map/driver.cxx
new file mode 100644
index 0000000..2aa59c7
--- /dev/null
+++ b/tests/prefix-map/driver.cxx
@@ -0,0 +1,153 @@
+// file      : tests/prefix-map/driver.cxx -*- C++ -*-
+// copyright : Copyright (c) 2014-2015 Code Synthesis Ltd
+// license   : MIT; see accompanying LICENSE file
+
+#include <string>
+#include <cassert>
+#include <iostream>
+
+#include <butl/prefix-map>
+
+using namespace std;
+using namespace butl;
+
+int
+main ()
+{
+  typedef prefix_map<string, int, '.'> pm;
+
+  {
+    const pm m;
+
+    {
+      auto r (m.find_prefix (""));
+      assert (r.first == r.second);
+    }
+
+    {
+      auto r (m.find_prefix ("foo"));
+      assert (r.first == r.second);
+    }
+  }
+
+  {
+    pm m {{{"foo", 1}}};
+
+    {
+      auto r (m.find_prefix (""));
+      assert (r.first != r.second && r.first->second == 1 &&
+              ++r.first == r.second);
+    }
+
+    {
+      auto r (m.find_prefix ("fo"));
+      assert (r.first == r.second);
+    }
+
+    {
+      auto r (m.find_prefix ("fox"));
+      assert (r.first == r.second);
+    }
+
+    {
+      auto r (m.find_prefix ("fooo"));
+      assert (r.first == r.second);
+    }
+
+    {
+      auto r (m.find_prefix ("foo.bar"));
+      assert (r.first == r.second);
+    }
+
+    {
+      auto r (m.find_prefix ("foo"));
+      assert (r.first != r.second && r.first->second == 1 &&
+              ++r.first == r.second);
+    }
+  }
+
+  {
+    pm m {{{"foo", 1}, {"bar", 2}}};
+
+    {
+      auto r (m.find_prefix (""));
+      assert (r.first != r.second && r.first->second == 2 &&
+              ++r.first != r.second && r.first->second == 1 &&
+              ++r.first == r.second);
+    }
+
+    {
+      auto r (m.find_prefix ("fo"));
+      assert (r.first == r.second);
+    }
+
+    {
+      auto r (m.find_prefix ("fox"));
+      assert (r.first == r.second);
+    }
+
+    {
+      auto r (m.find_prefix ("fooo"));
+      assert (r.first == r.second);
+    }
+
+    {
+      auto r (m.find_prefix ("foo.bar"));
+      assert (r.first == r.second);
+    }
+
+    {
+      auto r (m.find_prefix ("foo"));
+      assert (r.first != r.second && r.first->second == 1 &&
+              ++r.first == r.second);
+    }
+
+    {
+      auto r (m.find_prefix ("bar"));
+      assert (r.first != r.second && r.first->second == 2 &&
+              ++r.first == r.second);
+    }
+  }
+
+  {
+    pm m (
+      {{"boo", 1},
+       {"foo", 2}, {"fooa", 3}, {"foo.bar", 4}, {"foo.fox", 5},
+       {"xoo", 5}});
+
+    {
+      auto r (m.find_prefix ("fo"));
+      assert (r.first == r.second);
+    }
+
+    {
+      auto r (m.find_prefix ("fox"));
+      assert (r.first == r.second);
+    }
+
+    {
+      auto r (m.find_prefix ("fooo"));
+      assert (r.first == r.second);
+    }
+
+    {
+      auto r (m.find_prefix ("foo.bar"));
+      assert (r.first != r.second && r.first->second == 4 &&
+              ++r.first == r.second);
+    }
+
+    {
+      auto r (m.find_prefix ("foo.fox"));
+      assert (r.first != r.second && r.first->second == 5 &&
+              ++r.first == r.second);
+    }
+
+    {
+      auto r (m.find_prefix ("foo"));
+      assert (r.first != r.second && r.first->second == 2 &&
+              ++r.first != r.second && r.first->second == 4 &&
+              ++r.first != r.second && r.first->second == 5 &&
+              ++r.first == r.second);
+    }
+  }
+}