tapi/tests: Add initial tests for lineInitialize.

configure

@@ -20841,6 +20841,7 @@ wine_fn_config_makefile dlls/system.drv16 enable_win16
 wine_fn_config_makefile dlls/t2embed enable_t2embed
 wine_fn_config_makefile dlls/t2embed/tests enable_tests
 wine_fn_config_makefile dlls/tapi32 enable_tapi32
+wine_fn_config_makefile dlls/tapi32/tests enable_tests
 wine_fn_config_makefile dlls/taskschd enable_taskschd
 wine_fn_config_makefile dlls/taskschd/tests enable_tests
 wine_fn_config_makefile dlls/tdh enable_tdh

configure.ac

@@ -3696,6 +3696,7 @@ WINE_CONFIG_MAKEFILE(dlls/system.drv16,enable_win16)
 WINE_CONFIG_MAKEFILE(dlls/t2embed)
 WINE_CONFIG_MAKEFILE(dlls/t2embed/tests)
 WINE_CONFIG_MAKEFILE(dlls/tapi32)
+WINE_CONFIG_MAKEFILE(dlls/tapi32/tests)
 WINE_CONFIG_MAKEFILE(dlls/taskschd)
 WINE_CONFIG_MAKEFILE(dlls/taskschd/tests)
 WINE_CONFIG_MAKEFILE(dlls/tdh)

dlls/tapi32/tests/Makefile.in

+TESTDLL = tapi32.dll
+IMPORTS = tapi32
+
+C_SRCS = \
+	tapi.c

dlls/tapi32/tests/tapi.c

+/*
+ * TAPI32 API tests
+ *
+ * Copyright 2019 Vijay Kiran Kamuju
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
+ */
+
+#include <stdarg.h>
+
+#include "tapi.h"
+
+#include "wine/test.h"
+
+static void CALLBACK line_callback(DWORD hDev, DWORD dwMsg, DWORD_PTR dwInst, DWORD_PTR param1, DWORD_PTR param2, DWORD_PTR param3)
+{
+}
+
+static void test_lineInitialize(void)
+{
+    ULONG ret;
+    DWORD dev;
+    HLINEAPP lnApp;
+
+    ret = lineInitialize(NULL, NULL, NULL, NULL, NULL);
+    todo_wine ok(ret == LINEERR_INVALPOINTER, "Expected return value LINEERR_INVALPOINTER, got %x.\n", ret);
+
+    ret = lineInitialize(&lnApp, NULL, NULL, NULL, NULL);
+    todo_wine ok(ret == LINEERR_INVALPOINTER, "Expected return value LINEERR_INVALPOINTER, got %x.\n", ret);
+
+    ret = lineInitialize(&lnApp, GetModuleHandleA(NULL), NULL, NULL, NULL);
+    todo_wine ok(ret == LINEERR_INVALPOINTER, "Expected return value LINEERR_INVALPOINTER, got %x.\n", ret);
+
+    ret = lineInitialize(&lnApp, GetModuleHandleA(NULL), line_callback, NULL, NULL);
+    todo_wine ok(ret == LINEERR_INVALPOINTER, "Expected return value LINEERR_INVALPOINTER, got %x.\n", ret);
+
+    ret = lineInitialize(&lnApp, GetModuleHandleA(NULL), line_callback, NULL, &dev);
+    ok(!ret, "unexpected return value, got %u.\n", ret);
+
+    ret = lineShutdown(NULL);
+    todo_wine ok(ret == LINEERR_INVALAPPHANDLE, "Expected return value LINEERR_INVALAPPHANDLE, got %x.\n", ret);
+
+    ret = lineShutdown(lnApp);
+    ok(!ret, "unexpected return value, got %u.\n", ret);
+}
+
+START_TEST(tapi)
+{
+    test_lineInitialize();
+}

include/tapi.h

@@ -761,7 +761,7 @@ typedef struct linemessage_tag {
   DWORD_PTR dwParam3;
 } LINEMESSAGE, *LPLINEMESSAGE;
 
-typedef void (CALLBACK *LINECALLBACK)(DWORD, DWORD, DWORD, DWORD, DWORD, DWORD);
+typedef void (CALLBACK *LINECALLBACK)(DWORD, DWORD, DWORD_PTR, DWORD_PTR, DWORD_PTR, DWORD_PTR);
 
 typedef struct _PHONEAPP {
   int dummy;