From cc8c13b8435f34ef8901bb968c6998587ba9a19b Mon Sep 17 00:00:00 2001
From: Karen Arutyunov <karen@codesynthesis.com>
Date: Sat, 16 Feb 2019 00:05:47 +0300
Subject: Fix non-detecting dangling junctions if built with mingw gcc

---
 tests/dir-iterator/testscript | 13 +++++++++---
 tests/link/driver.cxx         | 48 +++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 58 insertions(+), 3 deletions(-)

(limited to 'tests')

diff --git a/tests/dir-iterator/testscript b/tests/dir-iterator/testscript
index 956eacb..370fd2f 100644
--- a/tests/dir-iterator/testscript
+++ b/tests/dir-iterator/testscript
@@ -36,14 +36,21 @@ else
 {
   +mkdir a
   +mkdir --no-cleanup a/b
-  +ln -s a/b a/l
+  +ln -s a/b a/bl
   +rmdir a/b
 
   +touch a/c
 
+  +mkdir a/d
+  +ln -s a/d a/dl
+
   # On Wine dangling symlinks are not visible (see mksymlink() for details).
   #
-  #$* ../a     >! 2>!       != 0 : keep
+  #$* ../a >! 2>! != 0 : keep
 
-  $* -i ../a  >'reg     c'      : skip
+  : skip
+  :
+  $* -i ../a >>~%EOO%
+    %(reg     c|dir     d|sym dir dl)%{3}
+    EOO
 }
diff --git a/tests/link/driver.cxx b/tests/link/driver.cxx
index 76cdbfc..6489d8d 100644
--- a/tests/link/driver.cxx
+++ b/tests/link/driver.cxx
@@ -179,12 +179,22 @@ main ()
   dir_path ld (td / dir_path ("dslink"));
   assert (link_dir (dp, ld, false /* hard */, true /* check_content */));
 
+  // Create the symlink to a directory symlink using an absolute path.
+  //
+  dir_path lld (td / dir_path ("dslinkslink"));
+  assert (link_dir (ld, lld, false /* hard */, true /* check_content */));
+
   {
     pair<bool, entry_stat> pe (path_entry (ld / "f"));
     assert (pe.first && pe.second.type == entry_type::regular);
   }
 
   {
+    pair<bool, entry_stat> pe (path_entry (lld / "f"));
+    assert (pe.first && pe.second.type == entry_type::regular);
+  }
+
+  {
     pair<bool, entry_stat> pe (path_entry (ld));
     assert (pe.first && pe.second.type == entry_type::symlink);
   }
@@ -194,16 +204,31 @@ main ()
     assert (pe.first && pe.second.type == entry_type::directory);
   }
 
+  {
+    pair<bool, entry_stat> pe (path_entry (lld));
+    assert (pe.first && pe.second.type == entry_type::symlink);
+  }
+
+  {
+    pair<bool, entry_stat> pe (path_entry (lld, true /* follow_symlinks */));
+    assert (pe.first && pe.second.type == entry_type::directory);
+  }
+
   for (const dir_entry& de: dir_iterator (td, false /* ignore_dangling */))
   {
     assert (de.path () != path ("dslink") ||
             (de.type () == entry_type::directory &&
              de.ltype () == entry_type::symlink));
+
+    assert (de.path () != path ("dslinkslink") ||
+            (de.type () == entry_type::directory &&
+             de.ltype () == entry_type::symlink));
   }
 
   // Remove the directory symlink and make sure the target's content still
   // exists.
   //
+  assert (try_rmsymlink (lld) == rmfile_status::success);
   assert (try_rmsymlink (ld) == rmfile_status::success);
 
   {
@@ -221,6 +246,29 @@ main ()
   assert (link_dir (dn, td / dir_path ("rdslink"), false, true));
 #endif
 
+  // Delete the junction target and verify the junction entry status.
+  //
+  assert (link_dir (dp, ld, false /* hard */, true /* check_content */));
+  rmdir_r (dp);
+
+  // On Wine dangling junctions are not visible. That's why we also re-create
+  // the target before the junction removal.
+  //
+#if 0
+  {
+    pair<bool, entry_stat> pe (path_entry (ld));
+    assert (pe.first && pe.second.type == entry_type::symlink);
+  }
+#endif
+
+  {
+    pair<bool, entry_stat> pe (path_entry (ld, true /* follow_symlinks */));
+    assert (!pe.first);
+  }
+
+  assert (try_mkdir (dp) == mkdir_status::success);
+  assert (try_rmsymlink (ld) == rmfile_status::success);
+
   try
   {
     rmdir_r (td);
-- 
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