test: add array unit test

diff --git a/test/unit/array.c b/test/unit/array.c
new file mode 100644 (file)
index 0000000..65ad1d8
--- /dev/null
+++ b/test/unit/array.c
@@ -0,0 +1,97 @@
+/*
+ **********************************************************************
+ * Copyright (C) Miroslav Lichvar  2023
+ * 
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of version 2 of the GNU General Public License 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.
+ * 
+ **********************************************************************
+ */
+
+#include <array.c>
+#include <util.h>
+#include "test.h"
+
+void
+test_unit(void)
+{
+  unsigned int i, j, k, k2, l, es, s;
+  unsigned char *el1, el2[20];
+  ARR_Instance a;
+
+  for (i = 0; i < 1000; i++) {
+    es = random() % sizeof (el2) + 1;
+
+    a = ARR_CreateInstance(es);
+
+    TEST_CHECK(ARR_GetSize(a) == 0);
+
+    for (j = 0; j < 100; j++) {
+      s = ARR_GetSize(a);
+
+      switch (random() % 6) {
+        case 0:
+          el1 = ARR_GetNewElement(a);
+          TEST_CHECK(ARR_GetSize(a) == s + 1);
+          memset(el1, s % 256, es);
+          TEST_CHECK(ARR_GetElement(a, s) == el1);
+          break;
+        case 1:
+          for (k = 0; k < s; k++) {
+            el1 = ARR_GetElement(a, k);
+            for (l = 0; l < es; l++)
+              TEST_CHECK(el1[l] == k % 256);
+          }
+          break;
+        case 2:
+          if (s == 0)
+            break;
+          TEST_CHECK(ARR_GetElements(a) == ARR_GetElement(a, 0));
+          break;
+        case 3:
+          memset(el2, s % 256, es);
+          ARR_AppendElement(a, el2);
+          TEST_CHECK(ARR_GetSize(a) == s + 1);
+          break;
+        case 4:
+          if (s == 0)
+            break;
+          k2 = random() % s;
+          ARR_RemoveElement(a, k2);
+          TEST_CHECK(ARR_GetSize(a) == s - 1);
+          for (k = k2; k < s - 1; k++) {
+            el1 = ARR_GetElement(a, k);
+            for (l = 0; l < es; l++) {
+              TEST_CHECK(el1[l] == (k + 1) % 256);
+              el1[l] = k % 256;
+            }
+          }
+          break;
+        case 5:
+          k2 = random() % 1000;
+          ARR_SetSize(a, k2);
+          TEST_CHECK(ARR_GetSize(a) == k2);
+          for (k = s; k < k2; k++) {
+            el1 = ARR_GetElement(a, k);
+            for (l = 0; l < es; l++)
+              el1[l] = k % 256;
+          }
+          break;
+        default:
+          assert(0);
+      }
+    }
+
+    ARR_DestroyInstance(a);
+  }
+}