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python-PySDL2
fix-partially-resolve-video_test.patch
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File fix-partially-resolve-video_test.patch of Package python-PySDL2
From ed28ea6305dede1b6ba046e36ddae9ba2016b62e Mon Sep 17 00:00:00 2001 From: Simon McVittie <smcv@collabora.com> Date: Sat, 19 Aug 2023 23:44:03 +0100 Subject: [PATCH] Partially resolve #257: video_test (#270) * video_test: Don't check error unless a function failed Helps: https://github.com/py-sdl/py-sdl2/issues/257 Signed-off-by: Simon McVittie <smcv@debian.org> * video_test: Use _check_error_msg() a bit more often Signed-off-by: Simon McVittie <smcv@debian.org> * video_test: Mitigate unsuitability of SDL_GetError() for detecting failure SDL_GetError() is like errno: it's documented not to be suitable for detecting failure, only for getting more details if failure was already detected (its result is unspecified on success, because a successful API call might have been implemented by doing something that failed, detecting that, and falling back to doing something different). However, some functions in SDL2 return void, so we have no other way to tell whether they have failed (they do return a result in SDL3). To make it less likely that upgrading SDL2 will make these tests regress, clear the error indicator immediately before calling the function under test. It is still not guaranteed to be empty on success, but at least this way we make sure it doesn't already contain an error message from a previous function call. Helps: https://github.com/py-sdl/py-sdl2/issues/257 Signed-off-by: Simon McVittie <smcv@debian.org> --------- Signed-off-by: Simon McVittie <smcv@debian.org> --- sdl2/test/video_test.py | 58 +++++++++++++++++++++-------------------- 1 file changed, 30 insertions(+), 28 deletions(-) diff --git a/sdl2/test/video_test.py b/sdl2/test/video_test.py index 83cb620..ca5a8e4 100644 --- a/sdl2/test/video_test.py +++ b/sdl2/test/video_test.py @@ -52,8 +52,7 @@ def with_sdl_gl(with_sdl): def window(with_sdl): flag = sdl2.SDL_WINDOW_BORDERLESS w = sdl2.SDL_CreateWindow(b"Test", 10, 40, 12, 13, flag) - if not w: - assert SDL_GetError() == b"" + assert w, _check_error_msg() assert isinstance(w.contents, sdl2.SDL_Window) sdl2.SDL_ClearError() yield w @@ -63,8 +62,7 @@ def window(with_sdl): def decorated_window(with_sdl): flag = sdl2.SDL_WINDOW_RESIZABLE w = sdl2.SDL_CreateWindow(b"Test", 10, 40, 12, 13, flag) - if not w: - assert SDL_GetError() == b"" + assert w, _check_error_msg() assert isinstance(w.contents, sdl2.SDL_Window) sdl2.SDL_ClearError() yield w @@ -74,20 +72,18 @@ def decorated_window(with_sdl): def gl_window(with_sdl_gl): flag = sdl2.SDL_WINDOW_OPENGL w = sdl2.SDL_CreateWindow(b"OpenGL", 10, 40, 12, 13, flag) - if not w: - assert SDL_GetError() == b"" + assert w, _check_error_msg() assert isinstance(w.contents, sdl2.SDL_Window) sdl2.SDL_ClearError() ctx = sdl2.SDL_GL_CreateContext(w) - assert SDL_GetError() == b"" + assert ctx, _check_error_msg() yield (w, ctx) sdl2.SDL_GL_DeleteContext(ctx) sdl2.SDL_DestroyWindow(w) def _create_window(name, h, w, x, y, flags): window = sdl2.SDL_CreateWindow(name, h, w, x, y, flags) - if not window: - assert SDL_GetError() == b"" + assert window, _check_error_msg() assert isinstance(window.contents, sdl2.SDL_Window) sdl2.SDL_ClearError() return window @@ -193,7 +189,7 @@ def test_SDL_VideoInitQuit(): # Test with default driver assert sdl2.SDL_WasInit(0) & sdl2.SDL_INIT_VIDEO != sdl2.SDL_INIT_VIDEO ret = sdl2.SDL_VideoInit(None) - assert ret == 0, sdl2.SDL_GetError().decode('utf-8', 'replace') + assert ret == 0, _check_error_msg() assert sdl2.SDL_GetCurrentVideoDriver() # If initialized, should be string sdl2.SDL_VideoQuit() assert not sdl2.SDL_GetCurrentVideoDriver() @@ -234,8 +230,7 @@ def test_SDL_GetDisplayMode(with_sdl): for mode in range(modes): dmode = sdl2.SDL_DisplayMode() ret = sdl2.SDL_GetDisplayMode(index, mode, byref(dmode)) - assert sdl2.SDL_GetError() == b"" - assert ret == 0 + assert ret == 0, _check_error_msg() if not DRIVER_DUMMY: assert dmode.w > 0 assert dmode.h > 0 @@ -245,8 +240,7 @@ def test_SDL_GetCurrentDisplayMode(with_sdl): for index in range(numdisplays): dmode = sdl2.SDL_DisplayMode() ret = sdl2.SDL_GetCurrentDisplayMode(index, byref(dmode)) - assert sdl2.SDL_GetError() == b"" - assert ret == 0 + assert ret == 0, _check_error_msg() assert dmode.w > 0 assert dmode.h > 0 @@ -255,8 +249,7 @@ def test_SDL_GetDesktopDisplayMode(with_sdl): for index in range(numdisplays): dmode = sdl2.SDL_DisplayMode() ret = sdl2.SDL_GetDesktopDisplayMode(index, byref(dmode)) - assert sdl2.SDL_GetError() == b"" - assert ret == 0 + assert ret == 0, _check_error_msg() assert dmode.w > 0 assert dmode.h > 0 @@ -266,8 +259,7 @@ def test_SDL_GetClosestDisplayMode(with_sdl): for index in range(numdisplays): dmode = sdl2.SDL_DisplayMode() ret = sdl2.SDL_GetCurrentDisplayMode(index, byref(dmode)) - assert sdl2.SDL_GetError() == b"" - assert ret == 0 + assert ret == 0, _check_error_msg() cmode = sdl2.SDL_DisplayMode( dmode.format, dmode.w - 1, dmode.h - 1, dmode.refresh_rate ) @@ -286,8 +278,7 @@ def test_SDL_GetDisplayBounds(with_sdl): for index in range(numdisplays): bounds = rect.SDL_Rect() ret = sdl2.SDL_GetDisplayBounds(index, byref(bounds)) - assert sdl2.SDL_GetError() == b"" - assert ret == 0 + assert ret == 0, _check_error_msg() assert bounds.w > 0 assert bounds.h > 0 assert not rect.SDL_RectEmpty(bounds) @@ -345,8 +336,8 @@ def test_GetDisplayInfo(with_sdl): def test_SDL_CreateDestroyWindow(with_sdl): flag = sdl2.SDL_WINDOW_BORDERLESS window = sdl2.SDL_CreateWindow(b"Test", 10, 40, 12, 13, flag) + assert window, _check_error_msg() if not isinstance(window.contents, sdl2.SDL_Window): - assert SDL_GetError() == b"" assert isinstance(window.contents, sdl2.SDL_Window) sdl2.SDL_DestroyWindow(window) @@ -453,7 +444,10 @@ def test_SDL_SetWindowIcon(window): 0, 16, 16, 16, 0xF000, 0x0F00, 0x00F0, 0x000F ) assert isinstance(sf.contents, surface.SDL_Surface) + sdl2.SDL_ClearError() sdl2.SDL_SetWindowIcon(window, sf) + # TODO: This is not 100% safe, but in SDL2, SetWindowIcon returns void, + # so we can't reliably detect error assert SDL_GetError() == b"" @pytest.mark.xfail(is_pypy, reason="PyPy can't create proper py_object values") @@ -535,7 +529,10 @@ def test_SDL_GetSetWindowMinimumSize(window): sdl2.SDL_GetWindowSize(window, byref(sx), byref(sy)) assert (sx.value, sy.value) == (12, 13) # Set and verify the minimum window size + sdl2.SDL_ClearError() sdl2.SDL_SetWindowMinimumSize(window, 10, 10) + # TODO: This is not 100% safe, but in SDL2, SetWindowMinimumSize returns + # void, so we can't reliably detect error assert SDL_GetError() == b"" sdl2.SDL_GetWindowMinimumSize(window, byref(minx), byref(miny)) assert (minx.value, miny.value) == (10, 10) @@ -549,8 +546,11 @@ def test_SDL_GetSetWindowMaximumSize(window): maxx, maxy = c_int(0), c_int(0) sdl2.SDL_GetWindowSize(window, byref(sx), byref(sy)) assert (sx.value, sy.value) == (12, 13) + sdl2.SDL_ClearError() # Set and verify the maximum window size sdl2.SDL_SetWindowMaximumSize(window, 32, 32) + # TODO: This is not 100% safe, but in SDL2, SetWindowMaximumSize returns + # void, so we can't reliably detect error assert SDL_GetError() == b"" sdl2.SDL_GetWindowMaximumSize(window, byref(maxx), byref(maxy)) assert (maxx.value, maxy.value) == (32, 32) @@ -660,7 +660,7 @@ def test_SDL_HasWindowSurface(window): def test_SDL_GetWindowSurface(window): sf = sdl2.SDL_GetWindowSurface(window) - assert SDL_GetError() == b"" + assert sf, _check_error_msg() assert isinstance(sf.contents, surface.SDL_Surface) def test_SDL_UpdateWindowSurface(window): @@ -857,23 +857,22 @@ def test_SDL_GL_CreateDeleteContext(with_sdl_gl): b"OpenGL", 10, 40, 32, 24, sdl2.SDL_WINDOW_OPENGL ) ctx = sdl2.SDL_GL_CreateContext(window) - assert SDL_GetError() == b"" + assert ctx, _check_error_msg() sdl2.SDL_GL_DeleteContext(ctx) ctx = sdl2.SDL_GL_CreateContext(window) - assert SDL_GetError() == b"" + assert ctx, _check_error_msg() sdl2.SDL_GL_DeleteContext(ctx) sdl2.SDL_DestroyWindow(window) @pytest.mark.skipif(DRIVER_DUMMY, reason="Doesn't work with dummy driver") def test_SDL_GL_GetProcAddress(gl_window): procaddr = sdl2.SDL_GL_GetProcAddress(b"glGetString") - assert SDL_GetError() == b"" - assert procaddr is not None and int(procaddr) != 0 + assert procaddr is not None and int(procaddr) != 0, _check_error_msg() @pytest.mark.skipif(DRIVER_DUMMY, reason="Doesn't work with dummy driver") def test_SDL_GL_ExtensionSupported(gl_window): - assert sdl2.SDL_GL_ExtensionSupported(b"GL_EXT_bgra") - assert SDL_GetError() == b"" + sdl2.SDL_ClearError() + assert sdl2.SDL_GL_ExtensionSupported(b"GL_EXT_bgra"), _check_error_msg() @pytest.mark.skipif(DRIVER_DUMMY, reason="Doesn't work with dummy driver") def test_SDL_GL_GetSetResetAttribute(with_sdl_gl): @@ -946,7 +945,10 @@ def test_SDL_GL_SwapWindow(gl_window): window, ctx = gl_window ret = sdl2.SDL_GL_MakeCurrent(window, ctx) assert ret == 0, _check_error_msg() + sdl2.SDL_ClearError() sdl2.SDL_GL_SwapWindow(window) sdl2.SDL_GL_SwapWindow(window) sdl2.SDL_GL_SwapWindow(window) + # TODO: This is not 100% safe, but in SDL2, GL_SwapWindow returns + # void, so we can't reliably detect error assert SDL_GetError() == b""
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