Fold LIBC_ALG into LIBC_MEM

test/libc/mem/arraylist_test.c

@@ -0,0 +1,99 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Copyright 2020 Justine Alexandra Roberts Tunney                              │
+│                                                                              │
+│ Permission to use, copy, modify, and/or distribute this software for         │
+│ any purpose with or without fee is hereby granted, provided that the         │
+│ above copyright notice and this permission notice appear in all copies.      │
+│                                                                              │
+│ THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL                │
+│ WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED                │
+│ WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE             │
+│ AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL         │
+│ DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR        │
+│ PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER               │
+│ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR             │
+│ PERFORMANCE OF THIS SOFTWARE.                                                │
+╚─────────────────────────────────────────────────────────────────────────────*/
+#include "libc/mem/alg.h"
+#include "libc/mem/arraylist.internal.h"
+#include "libc/log/libfatal.internal.h"
+#include "libc/mem/mem.h"
+#include "libc/runtime/runtime.h"
+#include "libc/str/str.h"
+#include "libc/testlib/testlib.h"
+
+struct string {
+  size_t i, n;
+  char *p;
+};
+
+struct string16 {
+  size_t i, n;
+  char16_t *p;
+};
+
+struct ArrayListInteger {
+  size_t i, n;
+  int *p;
+};
+
+TEST(append, worksGreatForScalars) {
+  char c = 'a';
+  struct string s;
+  memset(&s, 0, sizeof(s));
+  for (size_t i = 0; i < 1024; ++i) {
+    ASSERT_EQ(i, append(&s, &c));
+  }
+  ASSERT_EQ(1024, s.i);
+  for (size_t i = 0; i < s.i; ++i) ASSERT_EQ('a', s.p[i]);
+  free_s(&s.p);
+}
+
+TEST(append, isGenericallyTyped) {
+  int c = 0x31337;
+  struct ArrayListInteger s;
+  memset(&s, 0, sizeof(s));
+  for (size_t i = 0; i < 1024; ++i) {
+    ASSERT_EQ(i, append(&s, &c));
+  }
+  ASSERT_EQ(1024, s.i);
+  ASSERT_GT(malloc_usable_size(s.p), 1024 * sizeof(int));
+  for (size_t i = 0; i < s.i; ++i) {
+    ASSERT_EQ(0x31337, s.p[i]);
+  }
+  free_s(&s.p);
+}
+
+TEST(concat, worksGreatForStrings) {
+  const char *ks = "Und wird die Welt auch in Flammen stehen\n"
+                   "Wir werden wieder auferstehen\n";
+  struct string s;
+  memset(&s, 0, sizeof(s));
+  ASSERT_EQ(0, concat(&s, ks, strlen(ks)));
+  ASSERT_EQ(strlen(ks), concat(&s, ks, strlen(ks) + 1));
+  ASSERT_STREQ("Und wird die Welt auch in Flammen stehen\n"
+               "Wir werden wieder auferstehen\n"
+               "Und wird die Welt auch in Flammen stehen\n"
+               "Wir werden wieder auferstehen\n",
+               s.p);
+  ASSERT_EQ(strlen(ks) * 2 + 1, s.i);
+  free_s(&s.p);
+}
+
+TEST(concat, isGenericallyTyped) {
+  const char16_t *ks = u"Drum hoch die Fäuste, hoch zum Licht.\n"
+                       u"Unsere schwarzen Seelen bekommt ihr nicht.\n";
+  struct string16 s;
+  memset(&s, 0, sizeof(s));
+  ASSERT_EQ(0, concat(&s, ks, strlen16(ks)));
+  ASSERT_EQ(strlen16(ks), concat(&s, ks, strlen16(ks) + 1));
+  ASSERT_STREQ(u"Drum hoch die Fäuste, hoch zum Licht.\n"
+               u"Unsere schwarzen Seelen bekommt ihr nicht.\n"
+               u"Drum hoch die Fäuste, hoch zum Licht.\n"
+               u"Unsere schwarzen Seelen bekommt ihr nicht.\n",
+               s.p);
+  ASSERT_EQ(strlen16(ks) * 2 + 1, s.i);
+  free_s(&s.p);
+}