tree 2166ef66f2ac9a543cbd7ede7dd6c53f8f8f2e04
parent 211df380655d3fd0c76b9b7f8be399040ca0b7a5
author kkinnunen <kkinnunen@nvidia.com> 1448055144 -0800
committer Commit bot <commit-bot@chromium.org> 1448055145 -0800

Generate list of GPU contexts outside SurfaceTest tests

Add support for feeding the tests with contexts directly to the unit
test framework.

This fixes the problem where tests are more complex than needed just in
order to run the test code with multiple backends.

Also makes it possible to change the logic how contexts are
created. Instead of direct numbering, the different testable contexts
may be generated from filtered cross-product of context options. For
example: currently NVPR is a type of context. However, it could be also
an on/off feature of any context. In order to test this kind of context,
the enumeration can not be just of context type. It's simpler
to move the enumeration out of the tests.

A test targeting both normal and GPU backends would look like:

static void test_obj_behavior(skiatest::Reporter* reporter,
    SkObj* obj, [other params] ) {
    ... test with obj and param ..
}
DEF_TEST(ObjBehavior, reporter) {
    for (auto& object : generate_object) {
        for (auto& other_param : generate_other_variant) {
	   test_obj_behavior(reporter, object, other_param);
	}
    }
}
#if SK_SUPPORT_GPU
DEF_GPUTEST_FOR_ALL_CONTEXTS(ObjBehavior_Gpu, reporter, context) {
    for (auto& object : generate_gpu_object) {
        for (auto& other_param : generate_other_variant) {
	   test_obj_behavior(reporter, object, other_param);
	}
    }
}
#endif

Uses the feature in SurfaceTests as an example.

Moves SkSurface -related tests from ImageTest to SurfaceTest.

BUG=skia:2992

Review URL: https://codereview.chromium.org/1446453003