diff --git a/src/row.h b/src/row.h
index d6af84a..59a76d3 100644
--- a/src/row.h
+++ b/src/row.h
@@ -48,8 +48,6 @@ int wprint_row_separator(wchar_t *buffer, size_t buffer_sz,
 
 
 
-fort_row_t* create_row_from_string(const char *str);
-fort_row_t* create_row_from_fmt_string(const char* FT_RESTRICT fmt, va_list *va_args);
 
 int snprintf_row(const fort_row_t *row, char *buffer, size_t buf_sz, size_t *col_width_arr, size_t col_width_arr_sz,
                         size_t row_height, const context_t *context);
diff --git a/tests/test.c b/tests/test.c
index e18b8d9..7a3146c 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_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 21a0c28..bce0ae1 100644
--- a/tests/test_table_basic.c
+++ b/tests/test_table_basic.c
@@ -1,4 +1,5 @@
 #include "tests.h"
+#include "wchar.h"
 
 void test_table_basic(void)
 {
@@ -10,13 +11,9 @@ void test_table_basic(void)
         assert_true( set_test_options_for_table(table) == FT_SUCCESS);
 
         ft_set_option(table, 0, FT_ANY_COLUMN, FT_OPT_ROW_TYPE, Header);
-        int n = ft_printf_ln(table, "%d|%c|%s|%f", 3, 'c', "234", 3.14);
-
-        assert_true( n == 4 );
-        n = ft_printf_ln(table, "%d|%c|%s|%f", 3, 'c', "234", 3.14);
-        assert_true( n == 4 );
-        n = ft_printf_ln(table, "%d|%c|%s|%f", 3, 'c', "234", 3.14);
-        assert_true( n == 4 );
+        assert_true( FT_NWRITE_LN(table, "3", "c", "234", "3.140000") == FT_SUCCESS);
+        assert_true( FT_NWRITE_LN(table, "3", "c", "234", "3.140000") == FT_SUCCESS);
+        assert_true( FT_NWRITE_LN(table, "3", "c", "234", "3.140000") == FT_SUCCESS);
 
         const char *table_str = ft_to_string(table);
         assert_true( table_str != NULL );
@@ -35,9 +32,38 @@ void test_table_basic(void)
                 "|   |   |     |          |\n"
                 "+---+---+-----+----------+\n";
 //        fprintf(stderr, "content:\n%s", table_str);
-
         assert_true( strcmp(table_str, table_str_etalon) == 0);
+        ft_destroy_table(table);
+    }
 
+    WHEN("All columns are 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"c", L"234", L"3.140000") == FT_SUCCESS);
+        assert_true( FT_NWWRITE_LN(table, L"3", L"c", L"234", L"3.140000") == FT_SUCCESS);
+        assert_true( FT_NWWRITE_LN(table, L"3", L"c", L"234", L"3.140000") == 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 | c | 234 | 3.140000 |\n"
+                L"|   |   |     |          |\n"
+                L"+---+---+-----+----------+\n"
+                L"|   |   |     |          |\n"
+                L"| 3 | c | 234 | 3.140000 |\n"
+                L"|   |   |     |          |\n"
+                L"+---+---+-----+----------+\n"
+                L"|   |   |     |          |\n"
+                L"| 3 | c | 234 | 3.140000 |\n"
+                L"|   |   |     |          |\n"
+                L"+---+---+-----+----------+\n";
+//        fprintf(stderr, "content:\n%s", table_str);
+        assert_true( wcscmp(table_str, table_str_etalon) == 0);
         ft_destroy_table(table);
     }
 
@@ -49,8 +75,200 @@ void test_table_basic(void)
         assert_true( set_test_options_for_table(table) == FT_SUCCESS);
 
         ft_set_option(table, 0, FT_ANY_COLUMN, FT_OPT_ROW_TYPE, Header);
-        int n = ft_printf_ln(table, "%d|%c|%s|%f", 3, 'c', "234", 3.14);
+        assert_true( FT_NWRITE_LN(table, "3", "c", "234", "3.140000") == FT_SUCCESS);
+        assert_true( FT_NWRITE_LN(table, "c", "234", "3.140000", "3") == FT_SUCCESS);
+        assert_true( FT_NWRITE_LN(table, "234", "3.140000", "3", "c") == FT_SUCCESS);
 
+        const char *table_str = ft_to_string(table);
+        assert_true( table_str != NULL );
+        const char *table_str_etalon =
+                "+-----+----------+----------+----------+\n"
+                "|     |          |          |          |\n"
+                "|   3 |        c |      234 | 3.140000 |\n"
+                "|     |          |          |          |\n"
+                "+-----+----------+----------+----------+\n"
+                "|     |          |          |          |\n"
+                "|   c |      234 | 3.140000 |        3 |\n"
+                "|     |          |          |          |\n"
+                "+-----+----------+----------+----------+\n"
+                "|     |          |          |          |\n"
+                "| 234 | 3.140000 |        3 |        c |\n"
+                "|     |          |          |          |\n"
+                "+-----+----------+----------+----------+\n";
+//        fprintf(stderr, "content:\n%s", table_str);
+        assert_true( strcmp(table_str, table_str_etalon) == 0);
+        ft_destroy_table(table);
+    }
+
+    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"c", L"234", L"3.140000") == FT_SUCCESS);
+        assert_true( FT_NWWRITE_LN(table, L"c", L"234", L"3.140000", L"3") == FT_SUCCESS);
+        assert_true( FT_NWWRITE_LN(table, L"234", L"3.140000", L"3", 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 |        c |      234 | 3.140000 |\n"
+                L"|     |          |          |          |\n"
+                L"+-----+----------+----------+----------+\n"
+                L"|     |          |          |          |\n"
+                L"|   c |      234 | 3.140000 |        3 |\n"
+                L"|     |          |          |          |\n"
+                L"+-----+----------+----------+----------+\n"
+                L"|     |          |          |          |\n"
+                L"| 234 | 3.140000 |        3 |        c |\n"
+                L"|     |          |          |          |\n"
+                L"+-----+----------+----------+----------+\n";
+//        fprintf(stderr, "content:\n%s", table_str);
+        assert_true( wcscmp(table_str, table_str_etalon) == 0);
+        ft_destroy_table(table);
+    }
+
+    WHEN("All columns are not equal and some cells are empty") {
+        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_NWRITE_LN(table, "", "", "234", "3.140000") == FT_SUCCESS);
+        assert_true( FT_NWRITE_LN(table, "c", "234", "3.140000", "") == FT_SUCCESS);
+        assert_true( FT_NWRITE_LN(table, "234", "3.140000", "", "") == FT_SUCCESS);
+
+        const char *table_str = ft_to_string(table);
+        assert_true( table_str != NULL );
+        const char *table_str_etalon =
+                "+-----+----------+----------+----------+\n"
+                "|     |          |          |          |\n"
+                "|     |          |      234 | 3.140000 |\n"
+                "|     |          |          |          |\n"
+                "+-----+----------+----------+----------+\n"
+                "|     |          |          |          |\n"
+                "|   c |      234 | 3.140000 |          |\n"
+                "|     |          |          |          |\n"
+                "+-----+----------+----------+----------+\n"
+                "|     |          |          |          |\n"
+                "| 234 | 3.140000 |          |          |\n"
+                "|     |          |          |          |\n"
+                "+-----+----------+----------+----------+\n";
+//        fprintf(stderr, "content:\n%s", table_str);
+        assert_true( strcmp(table_str, table_str_etalon) == 0);
+        ft_destroy_table(table);
+    }
+
+    WHEN("All columns are not equal and some cells are 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"", L"", L"234", L"3.140000") == FT_SUCCESS);
+        assert_true( FT_NWWRITE_LN(table, L"c", L"234", L"3.140000", L"") == FT_SUCCESS);
+        assert_true( FT_NWWRITE_LN(table, L"234", L"3.140000", L"", L"") == 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"|     |          |      234 | 3.140000 |\n"
+                L"|     |          |          |          |\n"
+                L"+-----+----------+----------+----------+\n"
+                L"|     |          |          |          |\n"
+                L"|   c |      234 | 3.140000 |          |\n"
+                L"|     |          |          |          |\n"
+                L"+-----+----------+----------+----------+\n"
+                L"|     |          |          |          |\n"
+                L"| 234 | 3.140000 |          |          |\n"
+                L"|     |          |          |          |\n"
+                L"+-----+----------+----------+----------+\n";
+//        fprintf(stderr, "content:\n%s", table_str);
+        assert_true( wcscmp(table_str, table_str_etalon) == 0);
+        ft_destroy_table(table);
+    }
+
+    WHEN("All cells are empty") {
+        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_NWRITE_LN(table, "", "", "", "") == FT_SUCCESS);
+        assert_true( FT_NWRITE_LN(table, "", "", "", "") == FT_SUCCESS);
+        assert_true( FT_NWRITE_LN(table, "", "", "", "") == FT_SUCCESS);
+
+        const char *table_str = ft_to_string(table);
+        assert_true( table_str != NULL );
+        const char *table_str_etalon =
+                "+--+--+--+--+\n"
+                "|  |  |  |  |\n"
+                "|  |  |  |  |\n"
+                "|  |  |  |  |\n"
+                "+--+--+--+--+\n"
+                "|  |  |  |  |\n"
+                "|  |  |  |  |\n"
+                "|  |  |  |  |\n"
+                "+--+--+--+--+\n"
+                "|  |  |  |  |\n"
+                "|  |  |  |  |\n"
+                "|  |  |  |  |\n"
+                "+--+--+--+--+\n";
+//        fprintf(stderr, "content:\n%s", table_str);
+        assert_true( strcmp(table_str, table_str_etalon) == 0);
+        ft_destroy_table(table);
+    }
+
+    WHEN("All cells are 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"", L"", L"", L"") == FT_SUCCESS);
+        assert_true( FT_NWWRITE_LN(table, L"", L"", L"", L"") == FT_SUCCESS);
+        assert_true( FT_NWWRITE_LN(table, L"", L"", L"", L"") == 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"|  |  |  |  |\n"
+                L"|  |  |  |  |\n"
+                L"+--+--+--+--+\n"
+                L"|  |  |  |  |\n"
+                L"|  |  |  |  |\n"
+                L"|  |  |  |  |\n"
+                L"+--+--+--+--+\n"
+                L"|  |  |  |  |\n"
+                L"|  |  |  |  |\n"
+                L"|  |  |  |  |\n"
+                L"+--+--+--+--+\n";
+//        fprintf(stderr, "content:\n%s", table_str);
+        assert_true( wcscmp(table_str, table_str_etalon) == 0);
+        ft_destroy_table(table);
+    }
+}
+
+
+void test_table_write(void)
+{
+    FTABLE *table = NULL;
+
+
+    SCENARIO("Test printf functions") {
+        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);
+        int n = ft_printf_ln(table, "%d|%c|%s|%f", 3, 'c', "234", 3.14);
         assert_true( n == 4 );
         n = ft_printf_ln(table, "%c|%s|%f|%d", 'c', "234", 3.14, 3);
         assert_true( n == 4 );
@@ -74,82 +292,6 @@ void test_table_basic(void)
                 "|     |          |          |          |\n"
                 "+-----+----------+----------+----------+\n";
 
-//        fprintf(stderr, "content:\n%s", table_str);
-        assert_true( strcmp(table_str, table_str_etalon) == 0);
-
-        ft_destroy_table(table);
-    }
-
-    WHEN("All columns are not equal and some cells are empty") {
-        table = ft_create_table();
-        assert_true( table != NULL );
-//        ft_set_table_options(table, &test_table_opts);
-        assert_true( set_test_options_for_table(table) == FT_SUCCESS);
-
-        ft_set_option(table, 0, FT_ANY_COLUMN, FT_OPT_ROW_TYPE, Header);
-        int n = ft_printf_ln(table, "||%s|%f", "234", 3.14);
-
-        assert_true( n == 4 );
-        n = ft_printf_ln(table, "%c|%s|%f", 'c', "234", 3.14);
-        assert_true( n == 3 );
-        n = ft_printf_ln(table, "%s|%f||", "234", 3.14);
-        assert_true( n == 4 );
-
-        const char *table_str = ft_to_string(table);
-        assert_true( table_str != NULL );
-        const char *table_str_etalon =
-                "+-----+----------+----------+----------+\n"
-                "|     |          |          |          |\n"
-                "|     |          |      234 | 3.140000 |\n"
-                "|     |          |          |          |\n"
-                "+-----+----------+----------+----------+\n"
-                "|     |          |          |          |\n"
-                "|   c |      234 | 3.140000 |          |\n"
-                "|     |          |          |          |\n"
-                "+-----+----------+----------+----------+\n"
-                "|     |          |          |          |\n"
-                "| 234 | 3.140000 |          |          |\n"
-                "|     |          |          |          |\n"
-                "+-----+----------+----------+----------+\n";
-
-//        fprintf(stderr, "content:\n%s", table_str);
-        assert_true( strcmp(table_str, table_str_etalon) == 0);
-
-        ft_destroy_table(table);
-    }
-
-    WHEN("All cells are empty") {
-        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);
-        int n = ft_printf_ln(table, "|||");
-
-        assert_true( n == 4 );
-        n = ft_printf_ln(table, "|||");
-        assert_true( n == 4 );
-        n = ft_printf_ln(table, "|||");
-        assert_true( n == 4 );
-
-        const char *table_str = ft_to_string(table);
-        assert_true( table_str != NULL );
-        const char *table_str_etalon =
-                "+--+--+--+--+\n"
-                "|  |  |  |  |\n"
-                "|  |  |  |  |\n"
-                "|  |  |  |  |\n"
-                "+--+--+--+--+\n"
-                "|  |  |  |  |\n"
-                "|  |  |  |  |\n"
-                "|  |  |  |  |\n"
-                "+--+--+--+--+\n"
-                "|  |  |  |  |\n"
-                "|  |  |  |  |\n"
-                "|  |  |  |  |\n"
-                "+--+--+--+--+\n";
-
-
 //        fprintf(stderr, "content:\n%s", table_str);
         assert_true( strcmp(table_str, table_str_etalon) == 0);
 
diff --git a/tests/tests.h b/tests/tests.h
index 4a39bca..097f7ea 100644
--- a/tests/tests.h
+++ b/tests/tests.h
@@ -9,6 +9,7 @@
 
 #define WHEN(...)
 #define THEN(...)
+#define SCENARIO(...)
 
 /* Test cases */
 void test_vector_basic(void);
@@ -16,6 +17,7 @@ void test_string_buffer(void);
 void test_table_sizes(void);
 void test_table_geometry(void);
 void test_table_basic(void);
+void test_table_write(void);
 void test_table_border_style(void);
 void test_table_options(void);