Add unit tests for indentation mode cmdline parsing

utest/cmdline_test.c

@@ -0,0 +1,121 @@
+/*
+ * boxes - Command line filter to draw/remove ASCII boxes around text
+ * Copyright (c) 1999-2021 Thomas Jensen and the boxes contributors
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License, version 2, as published
+ * by the Free Software Foundation.
+ *
+ * This program 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 General Public License
+ * for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ *
+* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
+ */
+
+/*
+ * Unit tests of the 'cmdline' module
+ */
+
+#include "config.h"
+#include <stdarg.h>
+#include <stddef.h>
+#include <setjmp.h>
+#include <cmocka.h>
+#include "boxes.h"
+#include "cmdline.h"
+#include "tools.h"
+#include "global_mock.h"
+#include "cmdline_test.h"
+
+
+static opt_t *act(const int num_args, ...)
+{
+    assert_true(num_args >= 0);
+
+    int argc = 1;
+    char **argv = (char **) calloc(argc + 1, sizeof(char *));
+    argv[0] = "out/boxes";
+
+    if (num_args > 0) {
+        va_list va;
+        va_start(va, num_args);
+        char *arg;
+        while ((arg = va_arg(va, char *))) {
+            ++argc;
+            argv = (char **) realloc(argv, (argc + 1) * sizeof(char *));
+            argv[argc - 1] = arg;
+        }
+        va_end(va);
+    }
+    argv[argc] = NULL;
+
+    opt_t *actual = process_commandline(argc, argv);
+    BFREE(argv);
+    return actual;
+}
+
+
+void test_indentmode_none(void **state)
+{
+    (void) state;  /* unused */
+
+    opt_t *actual = act(2, "-i", "none");
+
+    assert_non_null(actual);
+    assert_int_equal((int) 'n', (int) actual->indentmode);
+}
+
+
+void test_indentmode_invalid_long(void **state)
+{
+    (void) state;  /* unused */
+
+    opt_t *actual = act(2, "-i", "INVALID");
+
+    assert_null(actual);   // invalid option, so we would need to exit with error
+    assert_int_equal(1, collect_err_size);
+    assert_string_equal("boxes: invalid indentation mode\n", collect_err[0]);
+}
+
+
+void test_indentmode_invalid_short(void **state)
+{
+    (void) state;  /* unused */
+
+    opt_t *actual = act(2, "-i", "X");
+
+    assert_null(actual);   // invalid option, so we would need to exit with error
+    assert_int_equal(1, collect_err_size);
+    assert_string_equal("boxes: invalid indentation mode\n", collect_err[0]);
+}
+
+
+void test_indentmode_box(void **state)
+{
+    (void) state;  /* unused */
+
+    opt_t *actual = act(2, "-i", "BO");
+
+    assert_non_null(actual);
+    assert_int_equal((int) 'b', (int) actual->indentmode);
+}
+
+
+void test_indentmode_text(void **state)
+{
+    (void) state;  /* unused */
+
+    opt_t *actual = act(2, "-i", "t");
+
+    assert_non_null(actual);
+    assert_int_equal((int) 't', (int) actual->indentmode);
+}
+
+
+/*EOF*/                                          /* vim: set cindent sw=4: */