tests: add dependencies to meson declaration

Make sure that all tests are run after the helpers and mocks are
(re)built.  This enables for example using "meson test" as the
command line passed to "git bisect run".

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>

tests/meson.build

@@ -191,8 +191,9 @@ test_file_wrapper_lib = static_library(
   dependencies: [ tests_dep ],
 )
 
+tests_deps = []
 foreach mock : mock_libs
-  shared_library(
+  tests_deps += shared_library(
     mock['name'],
     mock.get('sources', [ '@0@.c'.format(mock['name']) ]),
     override_options: [
@@ -215,7 +216,7 @@ endforeach
 # Must not link to any libvirt modules - libc only otherwise external
 # libraries might unexpectedly leak file descriptors into commandhelper
 # invalidating the test logic assumptions.
-executable(
+tests_deps += executable(
   'commandhelper',
   [ 'commandhelper.c' ],
   dependencies: [
@@ -227,7 +228,7 @@ executable(
 )
 
 # This is a fake SSH we use from virnetsockettest
-executable(
+tests_deps += executable(
   'ssh',
   [ 'ssh.c' ],
   dependencies: [
@@ -592,7 +593,7 @@ foreach data : tests
     # default meson timeout
     timeout = 30
   endif
-  test(data['name'], test_bin, env: tests_env, timeout: timeout)
+  test(data['name'], test_bin, env: tests_env, timeout: timeout, depends: tests_deps)
 endforeach