[glibmm/glibmm-2-62] tests/glibmm_buildfilename: Add some tests

[Kjell Ahlstedt <kjellahl src gnome org>]

commit 0acb40d8d575dd107ab5edd55d6d88d194d61a05
Author: Kjell Ahlstedt <kjellahlstedt gmail com>
Date:   Sat Mar 21 10:52:11 2020 +0100

    tests/glibmm_buildfilename: Add some tests
    
    See issue #71

 README                             |  4 ++--
 tests/glibmm_buildfilename/main.cc | 24 ++++++++++++++++++++++++
 2 files changed, 26 insertions(+), 2 deletions(-)
---
diff --git a/README b/README
index b6417674..f13cd66a 100644
--- a/README
+++ b/README
@@ -13,7 +13,7 @@ See README.win32
 ## Building from a release tarball
 
 Extract the tarball and go to the extracted directory:
-  $ tar xf glibmm-@GLIBMM_VERSION  tar gz
+  $ tar xf glibmm-@GLIBMM_VERSION  tar xz
   $ cd glibmm-@GLIBMM_VERSION@
 
 It's easiest to build with Meson, if the tarball was made with Meson,
@@ -33,7 +33,7 @@ files used by Autotools.
   $ cd your_builddir
 
 If the tarball was made with Autotools, you must enable maintainer-mode:
-  $ meson configure -Dmaintainer-mode=yes
+  $ meson configure -Dmaintainer-mode=true
 
 Then, regardless of how the tarball was made:
   $ ninja
diff --git a/tests/glibmm_buildfilename/main.cc b/tests/glibmm_buildfilename/main.cc
index 2460622b..71d2a9e4 100644
--- a/tests/glibmm_buildfilename/main.cc
+++ b/tests/glibmm_buildfilename/main.cc
@@ -39,5 +39,29 @@ main(int, char**)
   path = Glib::build_filename(dir_1, dir_2, dir_1, dir_3, dir_2, dir_3, dir_1, dir_2, file_2);
   ostr << "Path 5: " << path << std::endl;
 
+  path = Glib::build_filename(dir_2, file_2);
+  ostr << "Path 6: " << path << std::endl;
+
+  path = Glib::build_filename(dir_2, file_3);
+  ostr << "Path 7: " << path << std::endl;
+
+  path = Glib::build_filename(dir_3, file_3);
+  ostr << "Path 8: " << path << std::endl;
+
+  // path = Glib::build_filename(dir_1);
+  // ostr << "Path 9: " << path << std::endl;
+
+  // path = Glib::build_filename(nullptr);
+  // ostr << "Path 10: " << path << std::endl;
+
+  std::vector<std::string> pathv;
+  pathv.push_back("vdir1");
+  path = Glib::build_filename(pathv);
+  ostr << "Path v1: " << path << std::endl;
+
+  pathv.push_back("vdir2");
+  path = Glib::build_filename(pathv);
+  ostr << "Path v2: " << path << std::endl;
+
   return EXIT_SUCCESS;
 }