diff --git a/tests/test.c b/tests/test.c
index 7a3146c..0a7d02c 100644
--- a/tests/test.c
+++ b/tests/test.c
@@ -7,6 +7,7 @@ struct test_case test_suit [] = {
     {"test_table_sizes", test_table_sizes},
     {"test_table_geometry", test_table_geometry},
     {"test_table_basic", test_table_basic},
+    {"test_wcs_table_boundaries", test_wcs_table_boundaries},
     {"test_table_write", test_table_write},
     {"test_table_border_style", test_table_border_style},
     {"test_table_options", test_table_options},
diff --git a/tests/test_table_basic.c b/tests/test_table_basic.c
index 2971da3..b76fcb0 100644
--- a/tests/test_table_basic.c
+++ b/tests/test_table_basic.c
@@ -188,7 +188,7 @@ void test_table_basic(void)
                 L"| 234 | 3.140000 |          |          |\n"
                 L"|     |          |          |          |\n"
                 L"+-----+----------+----------+----------+\n";
-        fwprintf(stdout, L"content:\n%ls", table_str);
+//        fwprintf(stdout, L"content:\n%ls", table_str);
         assert_true( wcscmp(table_str, table_str_etalon) == 0);
         ft_destroy_table(table);
     }
@@ -257,6 +257,46 @@ void test_table_basic(void)
 }
 
 
+
+
+void test_wcs_table_boundaries(void)
+{
+    FTABLE *table = NULL;
+
+    WHEN("All columns are not equal and not empty (wide strings)") {
+        table = ft_create_table();
+        assert_true( table != NULL );
+        assert_true( set_test_options_for_table(table) == FT_SUCCESS);
+
+        ft_set_option(table, 0, FT_ANY_COLUMN, FT_OPT_ROW_TYPE, Header);
+        assert_true( FT_NWWRITE_LN(table, L"3", L"12345\x8888\x8888", L"c") == FT_SUCCESS);  /* \x8888,\x8888  - occupy 2 columns each */
+        assert_true( FT_NWWRITE_LN(table, L"c", L"12345678\x500", L"c") == FT_SUCCESS); /* \x500  - occupies 1 column */
+        assert_true( FT_NWWRITE_LN(table, L"234", L"123456789", L"c") == FT_SUCCESS);
+
+        const wchar_t *table_str = ft_to_wstring(table);
+        assert_true( table_str != NULL );
+        const wchar_t *table_str_etalon =
+                L"+-----+-----------+---+\n"
+                L"|     |           |   |\n"
+                L"|   3 | 12345\x8888\x8888 | c |\n"
+                L"|     |           |   |\n"
+                L"+-----+-----------+---+\n"
+                L"|     |           |   |\n"
+                L"|   c | 12345678\x500 | c |\n"
+                L"|     |           |   |\n"
+                L"+-----+-----------+---+\n"
+                L"|     |           |   |\n"
+                L"| 234 | 123456789 | c |\n"
+                L"|     |           |   |\n"
+                L"+-----+-----------+---+\n";
+//        setlocale(LC_CTYPE, "");
+//        fprintf(stdout, "content:\n%ls", table_str);
+        assert_wcs_equal( table_str, table_str_etalon );
+        ft_destroy_table(table);
+    }
+}
+
+
 void test_table_write(void)
 {
     FTABLE *table = NULL;
diff --git a/tests/tests.h b/tests/tests.h
index 097f7ea..bdc0c83 100644
--- a/tests/tests.h
+++ b/tests/tests.h
@@ -6,6 +6,8 @@
 #include <setjmp.h>
 #include "fort_impl.h"
 #include <assert.h>
+#include "wchar.h"
+#include "locale.h"
 
 #define WHEN(...)
 #define THEN(...)
@@ -17,6 +19,7 @@ void test_string_buffer(void);
 void test_table_sizes(void);
 void test_table_geometry(void);
 void test_table_basic(void);
+void test_wcs_table_boundaries(void);
 void test_table_write(void);
 void test_table_border_style(void);
 void test_table_options(void);
@@ -39,4 +42,27 @@ int set_test_options_as_default();
 FTABLE *create_test_int_table(int set_test_opts);
 
 
+#define assert_str_equal(str1, str2) \
+    if (strcmp(str1, str2) != 0) \
+    { \
+        fprintf(stderr, "%s:%d(%s):Abort! Not equals strings:\n",__FILE__,__LINE__, __FUNCTION__); \
+        fprintf(stderr, "Left string:\n%s\n", str1); \
+        fprintf(stderr, "Right string:\n%s\n", str2); \
+        exit(EXIT_FAILURE); \
+    }
+
+
+
+#define assert_wcs_equal(str1, str2) \
+    if (wcscmp(str1, str2) != 0) \
+    { \
+        setlocale(LC_CTYPE, ""); \
+        fwprintf(stdout, L"%s:%d(%s):Abort! Not equals strings:\n",__FILE__,__LINE__, __FUNCTION__); \
+        fwprintf(stdout, L"Left string:\n%ls\n", str1); \
+        fwprintf(stdout, L"Right string:\n%ls\n", str2); \
+        exit(EXIT_FAILURE); \
+    } \
+
+
+
 #endif // TESTS_H