Thomas Faber : gdi32/tests: Test GetTextExtentExPoint behavior with zero and negative max extent values .

[Alexandre Julliard]

Module: wine
Branch: master
Commit: 0a44501a4ebe3d34ddb784cf7f8a5b2c1733e08e
URL:    http://source.winehq.org/git/wine.git/?a=commit;h=0a44501a4ebe3d34ddb784cf7f8a5b2c1733e08e

Author: Thomas Faber <thfabba at gmx.de>
Date:   Sun Oct 23 11:23:06 2011 +0200

gdi32/tests: Test GetTextExtentExPoint behavior with zero and negative max extent values.

---

 dlls/gdi32/tests/font.c |   33 +++++++++++++++++++++++++++++++++
 1 files changed, 33 insertions(+), 0 deletions(-)

diff --git a/dlls/gdi32/tests/font.c b/dlls/gdi32/tests/font.c
index 3d24555..30296a5 100644
--- a/dlls/gdi32/tests/font.c
+++ b/dlls/gdi32/tests/font.c
@@ -1133,6 +1133,39 @@ static void test_text_extents(void)
     ret = GetTextExtentExPointW(hdc, wt, -1, 0, NULL, NULL, &sz1);
     ok(ret == FALSE, "got %d\n", ret);
 
+    /* max_extent = 0 succeeds and returns zero */
+    fit1 = fit2 = -215;
+    ret = GetTextExtentExPointA(hdc, NULL, 0, 0, &fit1, NULL, &sz);
+    ok(ret == TRUE ||
+       broken(ret == FALSE), /* NT4, 2k */
+       "got %d\n", ret);
+    ok(fit1 == 0 ||
+       broken(fit1 == -215), /* NT4, 2k */
+       "fit = %d\n", fit1);
+    ret = GetTextExtentExPointW(hdc, NULL, 0, 0, &fit2, NULL, &sz1);
+    ok(ret == TRUE, "got %d\n", ret);
+    ok(fit2 == 0, "fit = %d\n", fit2);
+
+    /* max_extent = -1 is interpreted as a very large width that will
+     * definitely fit our three characters */
+    fit1 = fit2 = -215;
+    ret = GetTextExtentExPointA(hdc, "One", 3, -1, &fit1, NULL, &sz);
+    ok(ret == TRUE, "got %d\n", ret);
+    todo_wine ok(fit1 == 3, "fit = %d\n", fit1);
+    ret = GetTextExtentExPointW(hdc, wt, 3, -1, &fit2, NULL, &sz);
+    ok(ret == TRUE, "got %d\n", ret);
+    todo_wine ok(fit2 == 3, "fit = %d\n", fit2);
+
+    /* max_extent = -2 is interpreted similarly, but the Ansi version
+     * rejects it while the Unicode one accepts it */
+    fit1 = fit2 = -215;
+    ret = GetTextExtentExPointA(hdc, "One", 3, -2, &fit1, NULL, &sz);
+    todo_wine ok(ret == FALSE, "got %d\n", ret);
+    todo_wine ok(fit1 == -215, "fit = %d\n", fit1);
+    ret = GetTextExtentExPointW(hdc, wt, 3, -2, &fit2, NULL, &sz);
+    ok(ret == TRUE, "got %d\n", ret);
+    todo_wine ok(fit2 == 3, "fit = %d\n", fit2);
+
     hfont = SelectObject(hdc, hfont);
     DeleteObject(hfont);
     ReleaseDC(NULL, hdc);