Adds tests for std::filesystem::copy_symlink.
Tested on x86_64-pc-linux-gnu.
libstdc++-v3/Changelog:
PR libstdc++/122217
* testsuite/27_io/filesystem/operations/copy_symlink/1.cc: New test.
* testsuite/27_io/filesystem/operations/copy_symlink/2.cc: New test.
* testsuite/27_io/filesystem/operations/copy_symlink/3.cc: New test.
* testsuite/27_io/filesystem/operations/copy_symlink/4.cc: New test.
---
.../filesystem/operations/copy_symlink/1.cc | 63 +++++++++++++++++++
.../filesystem/operations/copy_symlink/2.cc | 43 +++++++++++++
.../filesystem/operations/copy_symlink/3.cc | 47 ++++++++++++++
.../filesystem/operations/copy_symlink/4.cc | 44 +++++++++++++
4 files changed, 197 insertions(+)
create mode 100644
libstdc++-v3/testsuite/27_io/filesystem/operations/copy_symlink/1.cc
create mode 100644
libstdc++-v3/testsuite/27_io/filesystem/operations/copy_symlink/2.cc
create mode 100644
libstdc++-v3/testsuite/27_io/filesystem/operations/copy_symlink/3.cc
create mode 100644
libstdc++-v3/testsuite/27_io/filesystem/operations/copy_symlink/4.cc
diff --git
a/libstdc++-v3/testsuite/27_io/filesystem/operations/copy_symlink/1.cc
b/libstdc++-v3/testsuite/27_io/filesystem/operations/copy_symlink/1.cc
new file mode 100644
index 00000000000..e04b2672e6d
--- /dev/null
+++ b/libstdc++-v3/testsuite/27_io/filesystem/operations/copy_symlink/1.cc
@@ -0,0 +1,63 @@
+// { dg-do run { target c++17 } }
+// { dg-require-filesystem-ts "" }
+
+#include <filesystem>
+#include <testsuite_hooks.h>
+#include <testsuite_fs.h>
+
+// Test successful copies
+
+namespace fs = std::filesystem;
+
+void
+test_successful_copy(const fs::path& p,
+ bool (*is_some_file_type)(const fs::path&))
+{
+ const std::error_code bad_ec = make_error_code(std::errc::invalid_argument);
+ std::error_code ec;
+
+ auto to1 = read_symlink(p);
+
+ auto p2 = __gnu_test::nonexistent_path();
+ ec = bad_ec;
+ copy_symlink(p, p2, ec);
+ VERIFY( !ec );
+ VERIFY( exists(symlink_status(p2)) );
+ VERIFY( is_symlink(p2) );
+ VERIFY( is_some_file_type(p2) );
+ auto to2 = read_symlink(p2);
+ VERIFY( to1 == to2 );
+
+ // Copy again without ec
+ remove(p2);
+ copy_symlink(p, p2);
+ VERIFY( exists(symlink_status(p2)) );
+ VERIFY( is_symlink(p2) );
+ VERIFY( is_some_file_type(p2) );
+ to2 = read_symlink(p2);
+ VERIFY( to1 == to2 );
+
+ remove(p);
+ remove(p2);
+}
+
+void
+test01()
+{
+ __gnu_test::scoped_file f;
+ auto p = __gnu_test::nonexistent_path();
+ create_symlink(f.path, p);
+ test_successful_copy(p, fs::is_regular_file);
+
+ auto dir = __gnu_test::nonexistent_path();
+ create_directory(dir);
+ create_directory_symlink(dir, p);
+ test_successful_copy(p, fs::is_directory);
+ remove_all(dir);
+}
+
+int
+main()
+{
+ test01();
+}
diff --git
a/libstdc++-v3/testsuite/27_io/filesystem/operations/copy_symlink/2.cc
b/libstdc++-v3/testsuite/27_io/filesystem/operations/copy_symlink/2.cc
new file mode 100644
index 00000000000..27caf4a1d4a
--- /dev/null
+++ b/libstdc++-v3/testsuite/27_io/filesystem/operations/copy_symlink/2.cc
@@ -0,0 +1,43 @@
+// { dg-do run { target c++17 } }
+// { dg-require-filesystem-ts "" }
+
+#include <filesystem>
+#include <testsuite_hooks.h>
+#include <testsuite_fs.h>
+
+// Test copying into an existing file
+
+void
+test01()
+{
+ std::error_code ec, ec2;
+ __gnu_test::scoped_file f, f2;
+
+ auto p = __gnu_test::nonexistent_path();
+ create_symlink(f.path, p);
+
+ copy_symlink(p, f2.path, ec);
+ VERIFY( ec );
+ VERIFY( !is_symlink(f2.path) );
+
+ try
+ {
+ copy_symlink(p, f2.path);
+ }
+ catch (const std::filesystem::filesystem_error& ex)
+ {
+ ec2 = ex.code();
+ VERIFY( ex.path1() == p );
+ VERIFY( ex.path2() == f2.path );
+ }
+ VERIFY( ec2 == ec );
+ VERIFY( !is_symlink(f2.path) );
+
+ remove(p);
+}
+
+int
+main()
+{
+ test01();
+}
diff --git
a/libstdc++-v3/testsuite/27_io/filesystem/operations/copy_symlink/3.cc
b/libstdc++-v3/testsuite/27_io/filesystem/operations/copy_symlink/3.cc
new file mode 100644
index 00000000000..13e9dad20fc
--- /dev/null
+++ b/libstdc++-v3/testsuite/27_io/filesystem/operations/copy_symlink/3.cc
@@ -0,0 +1,47 @@
+// { dg-do run { target c++17 } }
+// { dg-require-filesystem-ts "" }
+
+#include <filesystem>
+#include <testsuite_hooks.h>
+#include <testsuite_fs.h>
+
+// Test copying from a non-symlink
+
+namespace fs = std::filesystem;
+
+void
+test_copy_from_non_symlink(const fs::path& from)
+{
+ std::error_code ec, ec2;
+ auto p = __gnu_test::nonexistent_path();
+ copy_symlink(from, p, ec);
+ VERIFY( ec );
+ VERIFY( !is_symlink(p) );
+
+ try
+ {
+ copy_symlink(from, p);
+ }
+ catch (const fs::filesystem_error& ex)
+ {
+ ec2 = ex.code();
+ VERIFY( ex.path1() == from );
+ VERIFY( ex.path2() == p );
+ }
+ VERIFY( ec2 == ec );
+ VERIFY( !is_symlink(p) );
+}
+
+void
+test01()
+{
+ __gnu_test::scoped_file f;
+ test_copy_from_non_symlink(f.path);
+ test_copy_from_non_symlink(__gnu_test::nonexistent_path());
+}
+
+int
+main()
+{
+ test01();
+}
diff --git
a/libstdc++-v3/testsuite/27_io/filesystem/operations/copy_symlink/4.cc
b/libstdc++-v3/testsuite/27_io/filesystem/operations/copy_symlink/4.cc
new file mode 100644
index 00000000000..2e4f300194b
--- /dev/null
+++ b/libstdc++-v3/testsuite/27_io/filesystem/operations/copy_symlink/4.cc
@@ -0,0 +1,44 @@
+// { dg-do run { target c++17 } }
+// { dg-require-filesystem-ts "" }
+
+#include <filesystem>
+#include <testsuite_hooks.h>
+#include <testsuite_fs.h>
+
+// Test copying into an empty path
+
+namespace fs = std::filesystem;
+
+void
+test01()
+{
+ std::error_code ec, ec2;
+ __gnu_test::scoped_file f, f2;
+
+ auto p = __gnu_test::nonexistent_path();
+ create_symlink(f.path, p);
+
+ fs::path empty;
+ copy_symlink(p, empty, ec);
+ VERIFY( ec );
+
+ try
+ {
+ copy_symlink(p, empty);
+ }
+ catch (const std::filesystem::filesystem_error& ex)
+ {
+ ec2 = ex.code();
+ VERIFY( ex.path1() == p );
+ VERIFY( ex.path2() == empty );
+ }
+ VERIFY( ec2 == ec );
+
+ remove(p);
+}
+
+int
+main()
+{
+ test01();
+}
--
2.52.0
