1 files changed, 312 insertions, 0 deletions
diff --git a/test/core/gpr/string_test.cc b/test/core/gpr/string_test.cc
new file mode 100644
index 0000000000..57068eb2c9
--- /dev/null
+++ b/test/core/gpr/string_test.cc
@@ -0,0 +1,312 @@
+/*
+ *
+ * Copyright 2015 gRPC authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
+
+#include "src/core/lib/gpr/string.h"
+
+#include <limits.h>
+#include <stddef.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include <grpc/support/alloc.h>
+#include <grpc/support/log.h>
+#include <grpc/support/string_util.h>
+#include <grpc/support/useful.h>
+#include "test/core/util/test_config.h"
+
+#define LOG_TEST_NAME(x) gpr_log(GPR_INFO, "%s", x)
+
+static void test_strdup(void) {
+  static const char* src1 = "hello world";
+  char* dst1;
+
+  LOG_TEST_NAME("test_strdup");
+
+  dst1 = gpr_strdup(src1);
+  GPR_ASSERT(0 == strcmp(src1, dst1));
+  gpr_free(dst1);
+
+  GPR_ASSERT(nullptr == gpr_strdup(nullptr));
+}
+
+static void expect_dump(const char* buf, size_t len, uint32_t flags,
+                        const char* result) {
+  char* got = gpr_dump(buf, len, flags);
+  GPR_ASSERT(0 == strcmp(got, result));
+  gpr_free(got);
+}
+
+static void test_dump(void) {
+  LOG_TEST_NAME("test_dump");
+  expect_dump("\x01", 1, GPR_DUMP_HEX, "01");
+  expect_dump("\x01", 1, GPR_DUMP_HEX | GPR_DUMP_ASCII, "01 '.'");
+  expect_dump("\x01\x02", 2, GPR_DUMP_HEX, "01 02");
+  expect_dump("\x01\x23\x45\x67\x89\xab\xcd\xef", 8, GPR_DUMP_HEX,
+              "01 23 45 67 89 ab cd ef");
+  expect_dump("ab", 2, GPR_DUMP_HEX | GPR_DUMP_ASCII, "61 62 'ab'");
+}
+
+static void test_pu32_fail(const char* s) {
+  uint32_t out;
+  GPR_ASSERT(!gpr_parse_bytes_to_uint32(s, strlen(s), &out));
+}
+
+static void test_pu32_succeed(const char* s, uint32_t want) {
+  uint32_t out;
+  GPR_ASSERT(gpr_parse_bytes_to_uint32(s, strlen(s), &out));
+  GPR_ASSERT(out == want);
+}
+
+static void test_parse_uint32(void) {
+  LOG_TEST_NAME("test_parse_uint32");
+
+  test_pu32_fail("-1");
+  test_pu32_fail("a");
+  test_pu32_fail("");
+  test_pu32_succeed("0", 0);
+  test_pu32_succeed("1", 1);
+  test_pu32_succeed("2", 2);
+  test_pu32_succeed("3", 3);
+  test_pu32_succeed("4", 4);
+  test_pu32_succeed("5", 5);
+  test_pu32_succeed("6", 6);
+  test_pu32_succeed("7", 7);
+  test_pu32_succeed("8", 8);
+  test_pu32_succeed("9", 9);
+  test_pu32_succeed("10", 10);
+  test_pu32_succeed("11", 11);
+  test_pu32_succeed("12", 12);
+  test_pu32_succeed("13", 13);
+  test_pu32_succeed("14", 14);
+  test_pu32_succeed("15", 15);
+  test_pu32_succeed("16", 16);
+  test_pu32_succeed("17", 17);
+  test_pu32_succeed("18", 18);
+  test_pu32_succeed("19", 19);
+  test_pu32_succeed("1234567890", 1234567890);
+  test_pu32_succeed("4294967295", 4294967295u);
+  test_pu32_fail("4294967296");
+  test_pu32_fail("4294967297");
+  test_pu32_fail("4294967298");
+  test_pu32_fail("4294967299");
+}
+
+static void test_asprintf(void) {
+  char* buf;
+  int i, j;
+
+  LOG_TEST_NAME("test_asprintf");
+
+  /* Print an empty string. */
+  GPR_ASSERT(gpr_asprintf(&buf, "%s", "") == 0);
+  GPR_ASSERT(buf[0] == '\0');
+  gpr_free(buf);
+
+  /* Print strings of various lengths. */
+  for (i = 1; i < 100; i++) {
+    GPR_ASSERT(gpr_asprintf(&buf, "%0*d", i, 1) == i);
+
+    /* The buffer should resemble "000001\0". */
+    for (j = 0; j < i - 2; j++) {
+      GPR_ASSERT(buf[j] == '0');
+    }
+    GPR_ASSERT(buf[i - 1] == '1');
+    GPR_ASSERT(buf[i] == '\0');
+    gpr_free(buf);
+  }
+}
+
+static void test_strjoin(void) {
+  const char* parts[4] = {"one", "two", "three", "four"};
+  size_t joined_len;
+  char* joined;
+
+  LOG_TEST_NAME("test_strjoin");
+
+  joined = gpr_strjoin(parts, 4, &joined_len);
+  GPR_ASSERT(0 == strcmp("onetwothreefour", joined));
+  gpr_free(joined);
+
+  joined = gpr_strjoin(parts, 0, &joined_len);
+  GPR_ASSERT(0 == strcmp("", joined));
+  gpr_free(joined);
+
+  joined = gpr_strjoin(parts, 1, &joined_len);
+  GPR_ASSERT(0 == strcmp("one", joined));
+  gpr_free(joined);
+}
+
+static void test_strjoin_sep(void) {
+  const char* parts[4] = {"one", "two", "three", "four"};
+  size_t joined_len;
+  char* joined;
+
+  LOG_TEST_NAME("test_strjoin_sep");
+
+  joined = gpr_strjoin_sep(parts, 4, ", ", &joined_len);
+  GPR_ASSERT(0 == strcmp("one, two, three, four", joined));
+  gpr_free(joined);
+
+  /* empty separator */
+  joined = gpr_strjoin_sep(parts, 4, "", &joined_len);
+  GPR_ASSERT(0 == strcmp("onetwothreefour", joined));
+  gpr_free(joined);
+
+  /* degenerated case specifying zero input parts */
+  joined = gpr_strjoin_sep(parts, 0, ", ", &joined_len);
+  GPR_ASSERT(0 == strcmp("", joined));
+  gpr_free(joined);
+
+  /* single part should have no separator */
+  joined = gpr_strjoin_sep(parts, 1, ", ", &joined_len);
+  GPR_ASSERT(0 == strcmp("one", joined));
+  gpr_free(joined);
+}
+
+static void test_ltoa() {
+  char* str;
+  char buf[GPR_LTOA_MIN_BUFSIZE];
+
+  LOG_TEST_NAME("test_ltoa");
+
+  /* zero */
+  GPR_ASSERT(1 == gpr_ltoa(0, buf));
+  GPR_ASSERT(0 == strcmp("0", buf));
+
+  /* positive number */
+  GPR_ASSERT(3 == gpr_ltoa(123, buf));
+  GPR_ASSERT(0 == strcmp("123", buf));
+
+  /* negative number */
+  GPR_ASSERT(6 == gpr_ltoa(-12345, buf));
+  GPR_ASSERT(0 == strcmp("-12345", buf));
+
+  /* large negative - we don't know the size of long in advance */
+  GPR_ASSERT(gpr_asprintf(&str, "%lld", (long long)LONG_MIN));
+  GPR_ASSERT(strlen(str) == (size_t)gpr_ltoa(LONG_MIN, buf));
+  GPR_ASSERT(0 == strcmp(str, buf));
+  gpr_free(str);
+}
+
+static void test_int64toa() {
+  char buf[GPR_INT64TOA_MIN_BUFSIZE];
+
+  LOG_TEST_NAME("test_int64toa");
+
+  /* zero */
+  GPR_ASSERT(1 == int64_ttoa(0, buf));
+  GPR_ASSERT(0 == strcmp("0", buf));
+
+  /* positive */
+  GPR_ASSERT(3 == int64_ttoa(123, buf));
+  GPR_ASSERT(0 == strcmp("123", buf));
+
+  /* large positive */
+  GPR_ASSERT(19 == int64_ttoa(9223372036854775807LL, buf));
+  GPR_ASSERT(0 == strcmp("9223372036854775807", buf));
+
+  /* large negative */
+  GPR_ASSERT(20 == int64_ttoa(-9223372036854775807LL - 1, buf));
+  GPR_ASSERT(0 == strcmp("-9223372036854775808", buf));
+}
+
+static void test_leftpad() {
+  char* padded;
+
+  LOG_TEST_NAME("test_leftpad");
+
+  padded = gpr_leftpad("foo", ' ', 5);
+  GPR_ASSERT(0 == strcmp("  foo", padded));
+  gpr_free(padded);
+
+  padded = gpr_leftpad("foo", ' ', 4);
+  GPR_ASSERT(0 == strcmp(" foo", padded));
+  gpr_free(padded);
+
+  padded = gpr_leftpad("foo", ' ', 3);
+  GPR_ASSERT(0 == strcmp("foo", padded));
+  gpr_free(padded);
+
+  padded = gpr_leftpad("foo", ' ', 2);
+  GPR_ASSERT(0 == strcmp("foo", padded));
+  gpr_free(padded);
+
+  padded = gpr_leftpad("foo", ' ', 1);
+  GPR_ASSERT(0 == strcmp("foo", padded));
+  gpr_free(padded);
+
+  padded = gpr_leftpad("foo", ' ', 0);
+  GPR_ASSERT(0 == strcmp("foo", padded));
+  gpr_free(padded);
+
+  padded = gpr_leftpad("foo", '0', 5);
+  GPR_ASSERT(0 == strcmp("00foo", padded));
+  gpr_free(padded);
+}
+
+static void test_stricmp(void) {
+  LOG_TEST_NAME("test_stricmp");
+
+  GPR_ASSERT(0 == gpr_stricmp("hello", "hello"));
+  GPR_ASSERT(0 == gpr_stricmp("HELLO", "hello"));
+  GPR_ASSERT(gpr_stricmp("a", "b") < 0);
+  GPR_ASSERT(gpr_stricmp("b", "a") > 0);
+}
+
+static void test_memrchr(void) {
+  LOG_TEST_NAME("test_memrchr");
+
+  GPR_ASSERT(nullptr == gpr_memrchr(nullptr, 'a', 0));
+  GPR_ASSERT(nullptr == gpr_memrchr("", 'a', 0));
+  GPR_ASSERT(nullptr == gpr_memrchr("hello", 'b', 5));
+  GPR_ASSERT(0 == strcmp((const char*)gpr_memrchr("hello", 'h', 5), "hello"));
+  GPR_ASSERT(0 == strcmp((const char*)gpr_memrchr("hello", 'o', 5), "o"));
+  GPR_ASSERT(0 == strcmp((const char*)gpr_memrchr("hello", 'l', 5), "lo"));
+}
+
+static void test_is_true(void) {
+  LOG_TEST_NAME("test_is_true");
+
+  GPR_ASSERT(true == gpr_is_true("True"));
+  GPR_ASSERT(true == gpr_is_true("true"));
+  GPR_ASSERT(true == gpr_is_true("TRUE"));
+  GPR_ASSERT(true == gpr_is_true("Yes"));
+  GPR_ASSERT(true == gpr_is_true("yes"));
+  GPR_ASSERT(true == gpr_is_true("YES"));
+  GPR_ASSERT(true == gpr_is_true("1"));
+  GPR_ASSERT(false == gpr_is_true(nullptr));
+  GPR_ASSERT(false == gpr_is_true(""));
+  GPR_ASSERT(false == gpr_is_true("0"));
+}
+
+int main(int argc, char** argv) {
+  grpc_test_init(argc, argv);
+  test_strdup();
+  test_dump();
+  test_parse_uint32();
+  test_asprintf();
+  test_strjoin();
+  test_strjoin_sep();
+  test_ltoa();
+  test_int64toa();
+  test_leftpad();
+  test_stricmp();
+  test_memrchr();
+  test_is_true();
+  return 0;
+}