Initial checkin of gRPC to third_party/

third_party/grpc/test/core/support/cmdline_test.c

Index: third_party/grpc/test/core/support/cmdline_test.c
diff --git a/third_party/grpc/test/core/support/cmdline_test.c b/third_party/grpc/test/core/support/cmdline_test.c
new file mode 100644
index 0000000000000000000000000000000000000000..4730fcc1b5f428a2fac08bdbe5573a5fae00d502
--- /dev/null
+++ b/third_party/grpc/test/core/support/cmdline_test.c
@@ -0,0 +1,496 @@
+/*
+ *
+ * Copyright 2015, Google Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+#include <grpc/support/cmdline.h>
+
+#include <string.h>
+
+#include <grpc/support/alloc.h>
+#include <grpc/support/log.h>
+#include <grpc/support/useful.h>
+#include "test/core/util/test_config.h"
+
+#define LOG_TEST() gpr_log(GPR_INFO, "test at %s:%d", __FILE__, __LINE__)
+
+static void test_simple_int(void) {
+  int x = 1;
+  gpr_cmdline *cl;
+  char *args[] = {(char *)__FILE__, "-foo", "3"};
+
+  LOG_TEST();
+
+  cl = gpr_cmdline_create(NULL);
+  gpr_cmdline_add_int(cl, "foo", NULL, &x);
+  GPR_ASSERT(x == 1);
+  gpr_cmdline_parse(cl, GPR_ARRAY_SIZE(args), args);
+  GPR_ASSERT(x == 3);
+  gpr_cmdline_destroy(cl);
+}
+
+static void test_eq_int(void) {
+  int x = 1;
+  gpr_cmdline *cl;
+  char *args[] = {(char *)__FILE__, "-foo=3"};
+
+  LOG_TEST();
+
+  cl = gpr_cmdline_create(NULL);
+  gpr_cmdline_add_int(cl, "foo", NULL, &x);
+  GPR_ASSERT(x == 1);
+  gpr_cmdline_parse(cl, GPR_ARRAY_SIZE(args), args);
+  GPR_ASSERT(x == 3);
+  gpr_cmdline_destroy(cl);
+}
+
+static void test_2dash_int(void) {
+  int x = 1;
+  gpr_cmdline *cl;
+  char *args[] = {(char *)__FILE__, "--foo", "3"};
+
+  LOG_TEST();
+
+  cl = gpr_cmdline_create(NULL);
+  gpr_cmdline_add_int(cl, "foo", NULL, &x);
+  GPR_ASSERT(x == 1);
+  gpr_cmdline_parse(cl, GPR_ARRAY_SIZE(args), args);
+  GPR_ASSERT(x == 3);
+  gpr_cmdline_destroy(cl);
+}
+
+static void test_2dash_eq_int(void) {
+  int x = 1;
+  gpr_cmdline *cl;
+  char *args[] = {(char *)__FILE__, "--foo=3"};
+
+  LOG_TEST();
+
+  cl = gpr_cmdline_create(NULL);
+  gpr_cmdline_add_int(cl, "foo", NULL, &x);
+  GPR_ASSERT(x == 1);
+  gpr_cmdline_parse(cl, GPR_ARRAY_SIZE(args), args);
+  GPR_ASSERT(x == 3);
+  gpr_cmdline_destroy(cl);
+}
+
+static void test_simple_string(void) {
+  char *x = NULL;
+  gpr_cmdline *cl;
+  char *args[] = {(char *)__FILE__, "-foo", "3"};
+
+  LOG_TEST();
+
+  cl = gpr_cmdline_create(NULL);
+  gpr_cmdline_add_string(cl, "foo", NULL, &x);
+  GPR_ASSERT(x == NULL);
+  gpr_cmdline_parse(cl, GPR_ARRAY_SIZE(args), args);
+  GPR_ASSERT(0 == strcmp(x, "3"));
+  gpr_cmdline_destroy(cl);
+}
+
+static void test_eq_string(void) {
+  char *x = NULL;
+  gpr_cmdline *cl;
+  char *args[] = {(char *)__FILE__, "-foo=3"};
+
+  LOG_TEST();
+
+  cl = gpr_cmdline_create(NULL);
+  gpr_cmdline_add_string(cl, "foo", NULL, &x);
+  GPR_ASSERT(x == NULL);
+  gpr_cmdline_parse(cl, GPR_ARRAY_SIZE(args), args);
+  GPR_ASSERT(0 == strcmp(x, "3"));
+  gpr_cmdline_destroy(cl);
+}
+
+static void test_2dash_string(void) {
+  char *x = NULL;
+  gpr_cmdline *cl;
+  char *args[] = {(char *)__FILE__, "--foo", "3"};
+
+  LOG_TEST();
+
+  cl = gpr_cmdline_create(NULL);
+  gpr_cmdline_add_string(cl, "foo", NULL, &x);
+  GPR_ASSERT(x == NULL);
+  gpr_cmdline_parse(cl, GPR_ARRAY_SIZE(args), args);
+  GPR_ASSERT(0 == strcmp(x, "3"));
+  gpr_cmdline_destroy(cl);
+}
+
+static void test_2dash_eq_string(void) {
+  char *x = NULL;
+  gpr_cmdline *cl;
+  char *args[] = {(char *)__FILE__, "--foo=3"};
+
+  LOG_TEST();
+
+  cl = gpr_cmdline_create(NULL);
+  gpr_cmdline_add_string(cl, "foo", NULL, &x);
+  GPR_ASSERT(x == NULL);
+  gpr_cmdline_parse(cl, GPR_ARRAY_SIZE(args), args);
+  GPR_ASSERT(0 == strcmp(x, "3"));
+  gpr_cmdline_destroy(cl);
+}
+
+static void test_flag_on(void) {
+  int x = 2;
+  gpr_cmdline *cl;
+  char *args[] = {(char *)__FILE__, "--foo"};
+
+  LOG_TEST();
+
+  cl = gpr_cmdline_create(NULL);
+  gpr_cmdline_add_flag(cl, "foo", NULL, &x);
+  GPR_ASSERT(x == 2);
+  gpr_cmdline_parse(cl, GPR_ARRAY_SIZE(args), args);
+  GPR_ASSERT(x == 1);
+  gpr_cmdline_destroy(cl);
+}
+
+static void test_flag_no(void) {
+  int x = 2;
+  gpr_cmdline *cl;
+  char *args[] = {(char *)__FILE__, "--no-foo"};
+
+  LOG_TEST();
+
+  cl = gpr_cmdline_create(NULL);
+  gpr_cmdline_add_flag(cl, "foo", NULL, &x);
+  GPR_ASSERT(x == 2);
+  gpr_cmdline_parse(cl, GPR_ARRAY_SIZE(args), args);
+  GPR_ASSERT(x == 0);
+  gpr_cmdline_destroy(cl);
+}
+
+static void test_flag_val_1(void) {
+  int x = 2;
+  gpr_cmdline *cl;
+  char *args[] = {(char *)__FILE__, "--foo=1"};
+
+  LOG_TEST();
+
+  cl = gpr_cmdline_create(NULL);
+  gpr_cmdline_add_flag(cl, "foo", NULL, &x);
+  GPR_ASSERT(x == 2);
+  gpr_cmdline_parse(cl, GPR_ARRAY_SIZE(args), args);
+  GPR_ASSERT(x == 1);
+  gpr_cmdline_destroy(cl);
+}
+
+static void test_flag_val_0(void) {
+  int x = 2;
+  gpr_cmdline *cl;
+  char *args[] = {(char *)__FILE__, "--foo=0"};
+
+  LOG_TEST();
+
+  cl = gpr_cmdline_create(NULL);
+  gpr_cmdline_add_flag(cl, "foo", NULL, &x);
+  GPR_ASSERT(x == 2);
+  gpr_cmdline_parse(cl, GPR_ARRAY_SIZE(args), args);
+  GPR_ASSERT(x == 0);
+  gpr_cmdline_destroy(cl);
+}
+
+static void test_flag_val_true(void) {
+  int x = 2;
+  gpr_cmdline *cl;
+  char *args[] = {(char *)__FILE__, "--foo=true"};
+
+  LOG_TEST();
+
+  cl = gpr_cmdline_create(NULL);
+  gpr_cmdline_add_flag(cl, "foo", NULL, &x);
+  GPR_ASSERT(x == 2);
+  gpr_cmdline_parse(cl, GPR_ARRAY_SIZE(args), args);
+  GPR_ASSERT(x == 1);
+  gpr_cmdline_destroy(cl);
+}
+
+static void test_flag_val_false(void) {
+  int x = 2;
+  gpr_cmdline *cl;
+  char *args[] = {(char *)__FILE__, "--foo=false"};
+
+  LOG_TEST();
+
+  cl = gpr_cmdline_create(NULL);
+  gpr_cmdline_add_flag(cl, "foo", NULL, &x);
+  GPR_ASSERT(x == 2);
+  gpr_cmdline_parse(cl, GPR_ARRAY_SIZE(args), args);
+  GPR_ASSERT(x == 0);
+  gpr_cmdline_destroy(cl);
+}
+
+static void test_many(void) {
+  char *str = NULL;
+  int x = 0;
+  int flag = 2;
+  gpr_cmdline *cl;
+
+  char *args[] = {(char *)__FILE__, "--str", "hello", "-x=4", "-no-flag"};
+
+  LOG_TEST();
+
+  cl = gpr_cmdline_create(NULL);
+  gpr_cmdline_add_string(cl, "str", NULL, &str);
+  gpr_cmdline_add_int(cl, "x", NULL, &x);
+  gpr_cmdline_add_flag(cl, "flag", NULL, &flag);
+  gpr_cmdline_parse(cl, GPR_ARRAY_SIZE(args), args);
+  GPR_ASSERT(x == 4);
+  GPR_ASSERT(0 == strcmp(str, "hello"));
+  GPR_ASSERT(flag == 0);
+  gpr_cmdline_destroy(cl);
+}
+
+static void extra_arg_cb(void *user_data, const char *arg) {
+  int *count = user_data;
+  GPR_ASSERT(arg != NULL);
+  GPR_ASSERT(strlen(arg) == 1);
+  GPR_ASSERT(arg[0] == 'a' + *count);
+  ++*count;
+}
+
+static void test_extra(void) {
+  gpr_cmdline *cl;
+  int count = 0;
+  char *args[] = {(char *)__FILE__, "a", "b", "c"};
+
+  LOG_TEST();
+
+  cl = gpr_cmdline_create(NULL);
+  gpr_cmdline_on_extra_arg(cl, "file", "filenames to process", extra_arg_cb,
+                           &count);
+  gpr_cmdline_parse(cl, GPR_ARRAY_SIZE(args), args);
+  GPR_ASSERT(count == 3);
+  gpr_cmdline_destroy(cl);
+}
+
+static void test_extra_dashdash(void) {
+  gpr_cmdline *cl;
+  int count = 0;
+  char *args[] = {(char *)__FILE__, "--", "a", "b", "c"};
+
+  LOG_TEST();
+
+  cl = gpr_cmdline_create(NULL);
+  gpr_cmdline_on_extra_arg(cl, "file", "filenames to process", extra_arg_cb,
+                           &count);
+  gpr_cmdline_parse(cl, GPR_ARRAY_SIZE(args), args);
+  GPR_ASSERT(count == 3);
+  gpr_cmdline_destroy(cl);
+}
+
+static void test_usage(void) {
+  gpr_cmdline *cl;
+  char *usage;
+
+  char *str = NULL;
+  int x = 0;
+  int flag = 2;
+
+  LOG_TEST();
+
+  cl = gpr_cmdline_create(NULL);
+  gpr_cmdline_add_string(cl, "str", NULL, &str);
+  gpr_cmdline_add_int(cl, "x", NULL, &x);
+  gpr_cmdline_add_flag(cl, "flag", NULL, &flag);
+  gpr_cmdline_on_extra_arg(cl, "file", "filenames to process", extra_arg_cb,
+                           NULL);
+
+  usage = gpr_cmdline_usage_string(cl, "test");
+  GPR_ASSERT(0 == strcmp(usage,
+                         "Usage: test [--str=string] [--x=int] "
+                         "[--flag|--no-flag] [file...]\n"));
+  gpr_free(usage);
+
+  usage = gpr_cmdline_usage_string(cl, "/foo/test");
+  GPR_ASSERT(0 == strcmp(usage,
+                         "Usage: test [--str=string] [--x=int] "
+                         "[--flag|--no-flag] [file...]\n"));
+  gpr_free(usage);
+
+  gpr_cmdline_destroy(cl);
+}
+
+static void test_help(void) {
+  gpr_cmdline *cl;
+
+  char *str = NULL;
+  int x = 0;
+  int flag = 2;
+
+  char *help[] = {(char *)__FILE__, "-h"};
+
+  LOG_TEST();
+
+  cl = gpr_cmdline_create(NULL);
+  gpr_cmdline_set_survive_failure(cl);
+  gpr_cmdline_add_string(cl, "str", NULL, &str);
+  gpr_cmdline_add_int(cl, "x", NULL, &x);
+  gpr_cmdline_add_flag(cl, "flag", NULL, &flag);
+  gpr_cmdline_on_extra_arg(cl, "file", "filenames to process", extra_arg_cb,
+                           NULL);
+
+  GPR_ASSERT(0 == gpr_cmdline_parse(cl, GPR_ARRAY_SIZE(help), help));
+
+  gpr_cmdline_destroy(cl);
+}
+
+static void test_badargs1(void) {
+  gpr_cmdline *cl;
+
+  char *str = NULL;
+  int x = 0;
+  int flag = 2;
+
+  char *bad_arg_name[] = {(char *)__FILE__, "--y"};
+
+  LOG_TEST();
+
+  cl = gpr_cmdline_create(NULL);
+  gpr_cmdline_set_survive_failure(cl);
+  gpr_cmdline_add_string(cl, "str", NULL, &str);
+  gpr_cmdline_add_int(cl, "x", NULL, &x);
+  gpr_cmdline_add_flag(cl, "flag", NULL, &flag);
+  gpr_cmdline_on_extra_arg(cl, "file", "filenames to process", extra_arg_cb,
+                           NULL);
+
+  GPR_ASSERT(0 ==
+             gpr_cmdline_parse(cl, GPR_ARRAY_SIZE(bad_arg_name), bad_arg_name));
+
+  gpr_cmdline_destroy(cl);
+}
+
+static void test_badargs2(void) {
+  gpr_cmdline *cl;
+
+  char *str = NULL;
+  int x = 0;
+  int flag = 2;
+
+  char *bad_int_value[] = {(char *)__FILE__, "--x", "henry"};
+
+  LOG_TEST();
+
+  cl = gpr_cmdline_create(NULL);
+  gpr_cmdline_set_survive_failure(cl);
+  gpr_cmdline_add_string(cl, "str", NULL, &str);
+  gpr_cmdline_add_int(cl, "x", NULL, &x);
+  gpr_cmdline_add_flag(cl, "flag", NULL, &flag);
+  gpr_cmdline_on_extra_arg(cl, "file", "filenames to process", extra_arg_cb,
+                           NULL);
+
+  GPR_ASSERT(
+      0 == gpr_cmdline_parse(cl, GPR_ARRAY_SIZE(bad_int_value), bad_int_value));
+
+  gpr_cmdline_destroy(cl);
+}
+
+static void test_badargs3(void) {
+  gpr_cmdline *cl;
+
+  char *str = NULL;
+  int x = 0;
+  int flag = 2;
+
+  char *bad_bool_value[] = {(char *)__FILE__, "--flag=henry"};
+
+  LOG_TEST();
+
+  cl = gpr_cmdline_create(NULL);
+  gpr_cmdline_set_survive_failure(cl);
+  gpr_cmdline_add_string(cl, "str", NULL, &str);
+  gpr_cmdline_add_int(cl, "x", NULL, &x);
+  gpr_cmdline_add_flag(cl, "flag", NULL, &flag);
+  gpr_cmdline_on_extra_arg(cl, "file", "filenames to process", extra_arg_cb,
+                           NULL);
+
+  GPR_ASSERT(0 == gpr_cmdline_parse(cl, GPR_ARRAY_SIZE(bad_bool_value),
+                                    bad_bool_value));
+
+  gpr_cmdline_destroy(cl);
+}
+
+static void test_badargs4(void) {
+  gpr_cmdline *cl;
+
+  char *str = NULL;
+  int x = 0;
+  int flag = 2;
+
+  char *bad_bool_value[] = {(char *)__FILE__, "--no-str"};
+
+  LOG_TEST();
+
+  cl = gpr_cmdline_create(NULL);
+  gpr_cmdline_set_survive_failure(cl);
+  gpr_cmdline_add_string(cl, "str", NULL, &str);
+  gpr_cmdline_add_int(cl, "x", NULL, &x);
+  gpr_cmdline_add_flag(cl, "flag", NULL, &flag);
+  gpr_cmdline_on_extra_arg(cl, "file", "filenames to process", extra_arg_cb,
+                           NULL);
+
+  GPR_ASSERT(0 == gpr_cmdline_parse(cl, GPR_ARRAY_SIZE(bad_bool_value),
+                                    bad_bool_value));
+
+  gpr_cmdline_destroy(cl);
+}
+
+int main(int argc, char **argv) {
+  grpc_test_init(argc, argv);
+  test_simple_int();
+  test_eq_int();
+  test_2dash_int();
+  test_2dash_eq_int();
+  test_simple_string();
+  test_eq_string();
+  test_2dash_string();
+  test_2dash_eq_string();
+  test_flag_on();
+  test_flag_no();
+  test_flag_val_1();
+  test_flag_val_0();
+  test_flag_val_true();
+  test_flag_val_false();
+  test_many();
+  test_extra();
+  test_extra_dashdash();
+  test_usage();
+  test_help();
+  test_badargs1();
+  test_badargs2();
+  test_badargs3();
+  test_badargs4();
+  return 0;
+}