Add depends keyword to test() function

mesonbuild/backend/backends.py

@@ -709,6 +709,9 @@ class Backend:
                 if not isinstance(arg, (build.CustomTarget, build.BuildTarget)):
                     continue
                 result[arg.get_id()] = arg
+            for dep in t.depends:
+                assert isinstance(dep, (build.CustomTarget, build.BuildTarget))
+                result[dep.get_id()] = dep
         return result
 
     def get_custom_target_provided_libraries(self, target):

mesonbuild/interpreter.py

@@ -653,12 +653,14 @@ class RunTargetHolder(InterpreterObject, ObjectHolder):
         return r.format(self.__class__.__name__, h.get_id(), h.command)
 
 class Test(InterpreterObject):
-    def __init__(self, name, project, suite, exe, is_parallel, cmd_args, env, should_fail, timeout, workdir):
+    def __init__(self, name, project, suite, exe, depends, is_parallel,
+                 cmd_args, env, should_fail, timeout, workdir):
         InterpreterObject.__init__(self)
         self.name = name
         self.suite = suite
         self.project_name = project
         self.exe = exe
+        self.depends = depends
         self.is_parallel = is_parallel
         self.cmd_args = cmd_args
         self.env = env
@@ -1512,7 +1514,7 @@ permitted_kwargs = {'add_global_arguments': {'language'},
                     'static_library': stlib_kwargs,
                     'subdir': {'if_found'},
                     'subproject': {'version', 'default_options'},
-                    'test': {'args', 'env', 'is_parallel', 'should_fail', 'timeout', 'workdir', 'suite'},
+                    'test': {'args', 'depends', 'env', 'is_parallel', 'should_fail', 'timeout', 'workdir', 'suite'},
                     'vcs_tag': {'input', 'output', 'fallback', 'command', 'replace_string'},
                     }
 
@@ -2721,7 +2723,12 @@ root and issuing %s.
             if len(s) > 0:
                 s = ':' + s
             suite.append(prj.replace(' ', '_').replace(':', '_') + s)
-        t = Test(args[0], prj, suite, exe.held_object, par, cmd_args, env, should_fail, timeout, workdir)
+        depends = extract_as_list(kwargs, 'depends', unholder=True)
+        for dep in depends:
+            if not isinstance(dep, (build.CustomTarget, build.BuildTarget)):
+                raise InterpreterException('Depends items must be build targets.')
+        t = Test(args[0], prj, suite, exe.held_object, depends, par, cmd_args,
+                 env, should_fail, timeout, workdir)
         if is_base_test:
             self.build.tests.append(t)
             mlog.debug('Adding test "', mlog.bold(args[0]), '".', sep='')