Add standard_version class

1 files changed, 136 insertions, 0 deletions

diff --git a/tests/standard-version/driver.cxx b/tests/standard-version/driver.cxx
new file mode 100644
index 0000000..1299090
--- /dev/null
+++ b/tests/standard-version/driver.cxx
@@ -0,0 +1,136 @@
+// file      : tests/standard-version/driver.cxx -*- C++ -*-
+// copyright : Copyright (c) 2014-2017 Code Synthesis Ltd
+// license   : MIT; see accompanying LICENSE file
+
+#include <ios>       // ios::failbit, ios::badbit
+#include <string>
+#include <cassert>
+#include <iostream>
+#include <stdexcept> // invalid_argument
+
+#include <butl/utility>          // operator<<(ostream,exception)
+#include <butl/standard-version>
+
+using namespace std;
+using namespace butl;
+
+// Create standard version from string, and also test another ctors.
+//
+static standard_version
+version (const string& s)
+{
+  standard_version r (s);
+
+  try
+  {
+    standard_version v (r.epoch,
+                        r.version,
+                        r.snapshot ()
+                        ? r.string_snapshot ()
+                        : string (),
+                        r.revision);
+
+    assert (r == v);
+
+    if (r.epoch == 0 && r.revision == 0)
+    {
+      standard_version v (r.version,
+                          r.snapshot ()
+                          ? r.string_snapshot ()
+                          : string ());
+      assert (r == v);
+
+      if (!r.snapshot ())
+      {
+        standard_version v (r.version);
+        assert (r == v);
+      }
+    }
+
+    if (r.snapshot ())
+    {
+      standard_version v (r.epoch,
+                          r.version,
+                          r.snapshot_sn,
+                          r.snapshot_id,
+                          r.revision);
+      assert (r == v);
+    }
+
+  }
+  catch (const invalid_argument& e)
+  {
+    cerr << e << endl;
+    assert (false);
+  }
+
+  return r;
+}
+
+// Usages:
+//
+// argv[0] -a <version>
+// argv[0] -b <version>
+// argv[0] -c <version> <version>
+// argv[0]
+//
+// -a  output 'y' for alpha-version, 'n' otherwise
+// -b  output 'y' for beta-version, 'n' otherwise
+// -c  output 0 if versions are equal, -1 if the first one is less, 1 otherwise
+//
+// If no options are specified, then create versions from STDIN lines, and
+// print them to STDOUT.
+//
+int
+main (int argc, char* argv[])
+try
+{
+  cin.exceptions  (ios::badbit);
+  cout.exceptions (ios::failbit | ios::badbit);
+
+  if (argc > 1)
+  {
+    string o (argv[1]);
+
+    if (o == "-a")
+    {
+      assert (argc == 3);
+      char r (version (argv[2]).alpha ()
+              ? 'y'
+              : 'n');
+
+      cout << r << endl;
+    }
+    else if (o == "-b")
+    {
+      assert (argc == 3);
+      char r (version (argv[2]).beta ()
+              ? 'y'
+              : 'n');
+
+      cout << r << endl;
+    }
+    else if (o == "-c")
+    {
+      assert (argc == 4);
+
+      int r (version (argv[2]).compare (version (argv[3])));
+      cout << r << endl;
+    }
+    else
+      assert (false);
+
+    return 0;
+  }
+
+  string s;
+  while (getline (cin, s))
+    cout << version (s) << endl;
+
+  return 0;
+}
+catch (const invalid_argument& e)
+{
+  cerr << e << endl;
+  return 1;
+}