meson: disable building all tests when the option says so

Follow-up to 0e4be11159.

modules/access/http/meson.build

@@ -25,6 +25,7 @@ vlc_http_lib = static_library('vlc_http',
     include_directories: [vlc_include_dirs],
 )
 
+if (get_option('tests').allowed())
 #
 # Tests
 #
@@ -84,7 +85,7 @@ test('http_h1chunked_test', h1chunked_test, suite: 'http')
 test('http_msg_test', http_msg_test, suite: 'http')
 test('http_file_test', http_file_test, suite: 'http')
 test('http_tunnel_test', http_tunnel_test, suite: 'http', timeout: 90)
-
+endif
 
 #
 # HTTP(S) module

modules/codec/meson.build

@@ -409,6 +409,7 @@ if get_option('css_engine').require(flex.found() and bison.found(),
         webvtt_bison_files,
     ]
 
+    if (get_option('tests').allowed())
     # CSS parser test
     css_parser_test = executable('css_parser_test',
         files(
@@ -423,6 +424,7 @@ if get_option('css_engine').require(flex.found() and bison.found(),
             include_directories('webvtt')])
 
     test('css_parser', css_parser_test, suite: 'css_parser')
+    endif
 
 endif
 

modules/demux/meson.build

@@ -36,12 +36,14 @@ if ogg_dep.found()
     }
 endif
 
+if (get_option('tests').allowed())
 # Xiph test
 xiph_test = executable('xiph_test',
     files('xiph_test.c'),
     include_directories: [vlc_include_dirs])
 
 test('xiph_test', xiph_test, suite: 'demux')
+endif
 
 # Demux dump
 vlc_modules += {