Fix test failures: Create missing mount dir

Tests were failing because mount dir was missing.
Unclear to me why this became only recently an issue
(github internal - out of the sudden tests were hanging).

test/ci-build.sh

@@ -78,7 +78,7 @@ sanitized_build()
     # bug, cf. https://groups.google.com/forum/#!topic/mesonbuild/tgEdAXIIdC4
     meson configure -D b_lundef=false
 
-    meson configure
+    meson configure --no-pager
     ninja
     sudo ninja install
     sudo chmod 4755 ${PREFIX_DIR}/bin/fusermount3

test/test_ctests.py

@@ -9,10 +9,11 @@ import subprocess
 import pytest
 import platform
 import sys
+import os
 from looseversion import LooseVersion
 from util import (wait_for_mount, umount, cleanup, base_cmdline,
                   safe_sleep, basename, fuse_test_marker, fuse_caps,
-                  fuse_proto)
+                  fuse_proto, create_tmpdir)
 from os.path import join as pjoin
 import os.path
 
@@ -29,6 +30,9 @@ def test_write_cache(tmpdir, writeback, output_checker):
     # deadlock in valgrind, it probably assumes that until close() returns,
     # control does not come to the program.
     mnt_dir = str(tmpdir)
+    print("mnt_dir: '" + mnt_dir + "'")
+    create_tmpdir(mnt_dir)
+
     cmdline = [ pjoin(basename, 'test', 'test_write_cache'),
                 mnt_dir ]
     if writeback:
@@ -50,6 +54,7 @@ if fuse_proto >= (7,15):
 @pytest.mark.parametrize("notify", (True, False))
 def test_notify1(tmpdir, name, notify, output_checker):
     mnt_dir = str(tmpdir)
+    create_tmpdir(mnt_dir)
     cmdline = base_cmdline + \
               [ pjoin(basename, 'example', name),
                 '-f', '--update-interval=1', mnt_dir ]
@@ -80,6 +85,7 @@ def test_notify1(tmpdir, name, notify, output_checker):
 @pytest.mark.parametrize("notify", (True, False))
 def test_notify_file_size(tmpdir, notify, output_checker):
     mnt_dir = str(tmpdir)
+    create_tmpdir(mnt_dir)
     cmdline = base_cmdline + \
               [ pjoin(basename, 'example', 'invalidate_path'),
                 '-f', '--update-interval=1', mnt_dir ]

test/util.py

@@ -151,6 +151,12 @@ def powerset(iterable):
   return itertools.chain.from_iterable(
       itertools.combinations(s, r) for r in range(len(s)+1))
 
+def create_tmpdir(mnt_dir):
+    if not os.path.exists(mnt_dir):
+        print("makedirs: '" + mnt_dir + "'")
+        os.makedirs(mnt_dir)
+    else:
+        print("mnt_dir exists: '" + mnt_dir + "'")
 
 # Use valgrind if requested
 if os.environ.get('TEST_WITH_VALGRIND', 'no').lower().strip() \