feat(lsm): write str tests; start trie tests

lsm/test/str/str.c

@@ -0,0 +1,91 @@
+#include "test.h"
+#include "lsm/str_internal.h"
+
+void test_cmp() {
+  lsm_str s1, s2, s3;
+  lsm_str_overwrite_copy(&s1, "some_string");
+  lsm_str_overwrite_copy(&s2, "some");
+  lsm_str_overwrite_copy(&s3, "some_string_extra");
+
+  TEST_CHECK(lsm_str_cmp(&s1, 0, &s2, 0) == 4);
+  TEST_CHECK(lsm_str_cmp(&s1, 0, &s2, 1) == 0);
+  TEST_CHECK(lsm_str_cmp(&s1, 1, &s2, 1) == 3);
+  TEST_CHECK(lsm_str_cmp(&s1, 1, &s2, 0) == 0);
+
+  TEST_CHECK(lsm_str_cmp(&s1, 0, &s3, 0) == lsm_str_len(&s1));
+}
+
+void test_eq() {
+  lsm_str s1, s2;
+  lsm_str_overwrite_copy(&s1, "longerthan8");
+  lsm_str_overwrite_copy(&s2, "longerthan8");
+
+  TEST_CHECK(lsm_str_eq(&s1, &s2));
+
+  lsm_str_overwrite_copy(&s1, "longerthan8");
+  lsm_str_overwrite_copy(&s2, "lmaolongerthan8");
+
+  TEST_CHECK(!lsm_str_eq(&s1, &s2));
+
+  lsm_str_overwrite_copy(&s1, "short");
+  lsm_str_overwrite_copy(&s2, "short");
+
+  TEST_CHECK(lsm_str_eq(&s1, &s2));
+
+  lsm_str_overwrite_copy(&s1, "short");
+  lsm_str_overwrite_copy(&s1, "shorte");
+
+  TEST_CHECK(!lsm_str_eq(&s1, &s2));
+
+  lsm_str_overwrite_copy(&s1, "longerthan8");
+  lsm_str_overwrite_copy(&s2, "short");
+
+  TEST_CHECK(!lsm_str_eq(&s1, &s2));
+}
+
+void test_substr() {
+  lsm_str s1, s2, s3;
+  lsm_str_overwrite_copy(&s1, "some_string");
+  lsm_str_overwrite_copy(&s3, "string");
+  lsm_str_substr(&s2, &s1, 5, lsm_str_len(&s1));
+
+  TEST_CHECK(lsm_str_eq(&s2, &s3));
+
+  lsm_str_zero(&s2);
+  lsm_str_substr(&s2, &s1, 25, lsm_str_len(&s1));
+
+  TEST_CHECK(lsm_str_len(&s2) == 0);
+}
+
+void test_truncate() {
+  lsm_str s1, s2, s3;
+  lsm_str_overwrite_copy(&s1, "some_longer_string_thing");
+  lsm_str_overwrite_copy(&s2, "some_longer_string");
+  lsm_str_overwrite_copy(&s3, "some");
+
+  lsm_str_truncate(&s1, 18);
+  TEST_CHECK(lsm_str_eq(&s1, &s2));
+
+  lsm_str_truncate(&s1, 4);
+  TEST_CHECK(lsm_str_eq(&s1, &s3));
+}
+
+void test_init_copy() {
+  char orig[] = "some_string";
+  lsm_str *s;
+  lsm_str_init_copy(&s, orig);
+
+  TEST_CHECK(s->data.ptr != orig);
+  TEST_CHECK(strcmp(s->data.ptr, orig) == 0);
+
+  lsm_str_free(s);
+}
+
+TEST_LIST = {
+  { "str init_copy", test_init_copy },
+  { "str cmp", test_cmp },
+  { "str eq", test_eq },
+  { "str substr", test_substr },
+  { "str truncate", test_truncate },
+  { NULL, NULL }
+};