kernel32/tests: Add tests for GetThreadSelectorEntry.

Signed-off-by: Dmitry Timoshkov <dmitry@baikal.ru>
Signed-off-by: Sebastian Lackner <sebastian@fds-team.de>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>

dlls/kernel32/tests/thread.c

@@ -1100,6 +1100,46 @@ static void test_SetThreadContext(void)
     CloseHandle( thread );
 }
 
+static void test_GetThreadSelectorEntry(void)
+{
+    LDT_ENTRY entry;
+    CONTEXT ctx;
+    DWORD limit;
+    void *base;
+    BOOL ret;
+
+    memset(&ctx, 0x11, sizeof(ctx));
+    ctx.ContextFlags = CONTEXT_SEGMENTS | CONTEXT_CONTROL;
+    ret = GetThreadContext(GetCurrentThread(), &ctx);
+    ok(ret, "GetThreadContext error %u\n", GetLastError());
+    ok(!HIWORD(ctx.SegCs), "expected HIWORD(SegCs) == 0, got %u\n", ctx.SegCs);
+    ok(!HIWORD(ctx.SegDs), "expected HIWORD(SegDs) == 0, got %u\n", ctx.SegDs);
+    ok(!HIWORD(ctx.SegFs), "expected HIWORD(SegFs) == 0, got %u\n", ctx.SegFs);
+
+    ret = GetThreadSelectorEntry(GetCurrentThread(), ctx.SegCs, &entry);
+    ok(ret, "GetThreadSelectorEntry(SegCs) error %u\n", GetLastError());
+    ret = GetThreadSelectorEntry(GetCurrentThread(), ctx.SegDs, &entry);
+    ok(ret, "GetThreadSelectorEntry(SegDs) error %u\n", GetLastError());
+
+    memset(&entry, 0x11, sizeof(entry));
+    ret = GetThreadSelectorEntry(GetCurrentThread(), ctx.SegFs, &entry);
+    ok(ret, "GetThreadSelectorEntry(SegFs) error %u\n", GetLastError());
+    entry.HighWord.Bits.Type &= ~1; /* ignore accessed bit */
+
+    base  = (void *)((entry.HighWord.Bits.BaseHi << 24) | (entry.HighWord.Bits.BaseMid << 16) | entry.BaseLow);
+    limit = (entry.HighWord.Bits.LimitHi << 16) | entry.LimitLow;
+
+    ok(base == NtCurrentTeb(),                "expected %p, got %p\n", NtCurrentTeb(), base);
+    ok(limit == 0x0fff || limit == 0x4000,    "expected 0x0fff or 0x4000, got %#x\n", limit);
+    ok(entry.HighWord.Bits.Type == 0x12,      "expected 0x12, got %#x\n", entry.HighWord.Bits.Type);
+    ok(entry.HighWord.Bits.Dpl == 3,          "expected 3, got %u\n", entry.HighWord.Bits.Dpl);
+    ok(entry.HighWord.Bits.Pres == 1,         "expected 1, got %u\n", entry.HighWord.Bits.Pres);
+    ok(entry.HighWord.Bits.Sys == 0,          "expected 0, got %u\n", entry.HighWord.Bits.Sys);
+    ok(entry.HighWord.Bits.Reserved_0 == 0,   "expected 0, got %u\n", entry.HighWord.Bits.Reserved_0);
+    ok(entry.HighWord.Bits.Default_Big == 1,  "expected 1, got %u\n", entry.HighWord.Bits.Default_Big);
+    ok(entry.HighWord.Bits.Granularity == 0,  "expected 0, got %u\n", entry.HighWord.Bits.Granularity);
+}
+
 #endif  /* __i386__ */
 
 static HANDLE finish_event;
@@ -1965,6 +2005,7 @@ START_TEST(thread)
    test_GetThreadExitCode();
 #ifdef __i386__
    test_SetThreadContext();
+   test_GetThreadSelectorEntry();
 #endif
    test_QueueUserWorkItem();
    test_RegisterWaitForSingleObject();