Test coverage for some of the cases where LAST_INSERT_ID() and API *_insert_id()...

diff --git a/ext/mysqli/tests/mysqli_last_insert_id.phpt b/ext/mysqli/tests/mysqli_last_insert_id.phpt
new file mode 100644 (file)
index 0000000..353cb7a
--- /dev/null
+++ b/ext/mysqli/tests/mysqli_last_insert_id.phpt
@@ -0,0 +1,194 @@
+--TEST--
+API vs. SQL LAST_INSERT_ID()
+--SKIPIF--
+<?php
+  require_once('skipif.inc');
+  require_once('skipifconnectfailure.inc');
+?>
+--FILE--
+<?php
+       /*
+       CAUTION: the insert_id() API call is not supposed to return
+       the same value as a call to the LAST_INSERT_ID() SQL function.
+       It is not necessarily a bug if API and SQL function return different
+       values. Check the MySQL C API reference manual for details.
+       */
+       require_once("connect.inc");
+
+       function get_sql_id($link) {
+               if (!($res = $link->query("SELECT LAST_INSERT_ID() AS _id"))) {
+                       printf("[003] [%d] %s\n", $link->errno, $link->error);
+                       return NULL;
+               }
+               $row = $res->fetch_assoc();
+               $res->close();
+
+               return $row['_id'];
+       }
+
+       if (!$link = my_mysqli_connect($host, $user, $passwd, $db, $port, $socket))
+               printf("[001] Cannot connect to the server using host=%s, user=%s, passwd=***, dbname=%s, port=%s, socket=%s\n",
+                       $host, $user, $db, $port, $socket);
+
+       if (!$link->query("DROP TABLE IF EXISTS test") ||
+               !$link->query("CREATE TABLE test (id INT auto_increment, label varchar(10) not null, PRIMARY KEY (id))") ||
+               !$link->query("INSERT INTO test (id, label) VALUES (null, 'a')")) {
+               printf("[002] [%d] %s\n", $link->errno, $link->error);
+       }
+
+       $api_id = $link->insert_id;
+       $sql_id = get_sql_id($link);
+       printf("API: %d, SQL: %d\n", $api_id, $sql_id);
+
+       if ($api_id < 1)
+               printf("[004] Expecting id > 0 got %d, [%d] %s\n", $api_id, $link->errno, $link->error) ;
+       if ($api_id != $sql_id)
+               printf("[005] SQL id %d should be equal to API id %d\n", $sql_id, $api_id);
+
+       // Not an INSERT, API value must become 0
+       if (!($res = $link->query("SELECT 1 FROM DUAL")))
+               printf("[006] [%d] %s\n", $link->errno, $link->error);
+       else
+               $res->close();
+
+       $api_id = $link->insert_id;
+       $new_sql_id = get_sql_id($link);
+       if (0 !== $api_id) {
+               printf("[007] API id should have been reset to 0 because previous query was SELECT, got API %d, SQL %d\n",
+                 $api_id, $new_sql_id);
+       }
+       if ($new_sql_id != $sql_id) {
+               printf("[008] The servers LAST_INSERT_ID() changed unexpectedly from %d to %d\n", $sql_id, $new_sql_id);
+       }
+
+       // Insert fails, LAST_INSERT_ID shall not change, API shall return 0
+       if ($link->query("INSERT INTO test (id, label) VALUES (null, null)")) {
+               printf("[009] The INSERT did not fail as planned, [%d] %s\n", $link->errno, $link->error);
+       }
+       $api_id = $link->insert_id;
+       $new_sql_id = get_sql_id($link);
+
+       if (0 !== $api_id) {
+               printf("[010] API id should have been reset to 0 because previous query was SELECT, got API %d, SQL %d\n",
+                 $api_id, $new_sql_id);
+       }
+       if ($new_sql_id != $sql_id) {
+               printf("[011] The servers LAST_INSERT_ID() changed unexpectedly from %d to %d\n", $sql_id, $new_sql_id);
+       }
+
+       // Sequence counter pattern...
+       if (!$link->query("UPDATE test SET id=LAST_INSERT_ID(id+1)"))
+         printf("[012] [%d] %s\n", $link->errno, $link->error);
+
+       $api_id = $link->insert_id;
+       $new_sql_id = get_sql_id($link);
+       if ($api_id < 1)
+               printf("[013] Expecting id > 0 got %d, [%d] %s\n", $api_id, $link->errno, $link->error) ;
+       if ($api_id != $new_sql_id)
+               printf("[014] SQL id %d should be equal to API id %d\n", $new_sql_id, $api_id);
+       if ($sql_id == $new_sql_id)
+               printf("[015] SQL id %d should have had changed, got %d\n", $sql_id, $new_sql_id);
+
+       $sql_id = $new_sql_id;
+
+       // Not an INSERT (after UPDATE), API value must become 0
+       if (!$link->query("SET @myvar=1"))
+               printf("[016] [%d] %s\n", $link->errno, $link->error);
+
+       $api_id = $link->insert_id;
+       $new_sql_id = get_sql_id($link);
+       if (0 !== $api_id) {
+               printf("[017] API id should have been reset to 0 because previous query was SET, got API %d, SQL %d\n",
+                 $api_id, $new_sql_id);
+       }
+       if ($new_sql_id != $sql_id) {
+               printf("[018] The servers LAST_INSERT_ID() changed unexpectedly from %d to %d\n", $sql_id, $new_sql_id);
+       }
+
+       if (!$link->query("INSERT INTO test(id, label) VALUES (LAST_INSERT_ID(id + 1), 'b')"))
+               printf("[019] [%d] %s\n", $link->errno, $link->error);
+
+       $api_id = $link->insert_id;
+       $sql_id = get_sql_id($link);
+       if ($api_id != $sql_id)
+               printf("[020] SQL id %d should be equal to API id %d\n", $sql_id, $api_id);
+
+       if (!$link->query("INSERT INTO test(label) VALUES ('c')"))
+               printf("[021] [%d] %s\n", $link->errno, $link->error);
+
+       $api_id = $link->insert_id;
+       $sql_id = get_sql_id($link);
+       if ($api_id != $sql_id)
+               printf("[022] SQL id %d should be equal to API id %d\n", $sql_id, $api_id);
+
+       if (!($res = $link->query("SELECT id, label FROM test ORDER BY id ASC")))
+               printf("[023] [%d] %s\n", $link->errno, $link->error);
+
+       printf("Dumping table contents before INSERT...SELECT experiments...\n");
+       while ($row = $res->fetch_assoc()) {
+               printf("id = %d, label = '%s'\n", $row['id'], $row['label']);
+       }
+       $res->close();
+
+       if (!$link->query("INSERT INTO test(label) SELECT CONCAT(label, id) FROM test ORDER BY id ASC"))
+         printf("[024] [%d] %s\n", $link->errno, $link->error);
+
+       $api_id = $link->insert_id;
+       $sql_id = get_sql_id($link);
+       if ($api_id != $sql_id)
+               printf("[025] SQL id %d should be equal to API id %d\n", $sql_id, $api_id);
+
+       if ($link->query("INSERT INTO test(id, label) SELECT id, CONCAT(label, id) FROM test ORDER BY id ASC"))
+         printf("[026] INSERT should have failed because of duplicate PK value, [%d] %s\n", $link->errno, $link->error);
+
+       $api_id = $link->insert_id;
+       $new_sql_id = get_sql_id($link);
+       if (0 !== $api_id) {
+               printf("[027] API id should have been reset to 0 because previous query failed, got API %d, SQL %d\n",
+                 $api_id, $new_sql_id);
+       }
+       if ($new_sql_id != $sql_id) {
+               printf("[028] The servers LAST_INSERT_ID() changed unexpectedly from %d to %d\n", $sql_id, $new_sql_id);
+       }
+
+       /* API insert id will be 101 because of UPDATE, SQL unchanged */
+       if (!$link->query(sprintf("INSERT INTO test(id, label) VALUES (%d, 'z') ON DUPLICATE KEY UPDATE id = 101", $sql_id)     ))
+         printf("[029] [%d] %s\n", $link->errno, $link->error);
+
+       $api_id = $link->insert_id;
+       $new_sql_id = get_sql_id($link);
+       if ($api_id != 101)
+               printf("[030] API id should be %d got %d\n", $sql_id, $api_id);
+       if ($new_sql_id != $sql_id) {
+               printf("[031] The servers LAST_INSERT_ID() changed unexpectedly from %d to %d\n", $sql_id, $new_sql_id);
+       }
+
+       if (!($res = $link->query("SELECT id, label FROM test ORDER BY id ASC")))
+               printf("[032] [%d] %s\n", $link->errno, $link->error);
+
+       printf("Dumping table contents after INSERT...SELECT...\n");
+       while ($row = $res->fetch_assoc()) {
+               printf("id = %d, label = '%s'\n", $row['id'], $row['label']);
+       }
+       $res->close();
+
+       print "done!";
+?>
+--CLEAN--
+<?php
+       require_once("clean_table.inc");
+?>
+--EXPECTF--
+API: %d, SQL: %d
+Dumping table contents before INSERT...SELECT experiments...
+id = %d, label = 'b'
+id = %d, label = 'a'
+id = %d, label = 'c'
+Dumping table contents after INSERT...SELECT...
+id = %d, label = 'b'
+id = %d, label = 'a'
+id = %d, label = 'c'
+id = %d, label = 'a%d'
+id = %d, label = 'c%d'
+id = 101, label = 'b%d'
+done!
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