我有一个简单的存储过程,其返回值取决于inet_client_addr()
. inet_client_addr()
在测试我的存储过程时,如何为了单元测试的目的而覆盖?
到目前为止,我想出的唯一解决方案是围绕inet_client_addr()
以下内容创建一个包装函数:
CREATE FUNCTION my_inet_client_addr() RETURNS INET AS $$
SELECT inet_client_addr();
$$ LANGUAGE sql;
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然后在我的函数中使用它:
CREATE local_connection() RETURNS BOOLEAN AS $$
SELECT my_inet_client_addr() = '127.0.0.1';
$$ LANGUAGE sql;
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然后在我的单元测试中,我可以重新定义my_inet_client_addr()
:
BEGIN;
SELECT PLAN(2);
REPLACE FUNCTION my_inet_client_addr() RETURNS INET AS $$
SELECT '127.0.0.1'::INET;
$$ LANGUAGE sql;
is(local_connection(),TRUE,'Connection from 127.0.0.1 is local');
REPLACE FUNCTION my_inet_client_addr() RETURNS INET AS $$
SELECT '192.168.1.1'::INET;
$$ LANGUAGE sql;
is(local_connection(),FALSE,'Connection from 192.168.1.1. is not local');
ROLLBACK;
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有没有办法在没有包装功能的情况下完成相同的任务my_inet_client_addr()
?
我有一个未使用现有索引的查询,我不明白为什么。
桌子:
mustang=# \d+ bss.amplifier_saturation
Table "bss.amplifier_saturation"
Column | Type | Modifiers | Storage | Description
--------+--------------------------+-------------------------------------------------------------------+---------+-------------
value | integer | not null | plain |
target | integer | not null | plain |
start | timestamp with time zone | not null | plain |
end | timestamp with time zone | not null | plain |
id | integer | not null default nextval('amplifier_saturation_id_seq'::regclass) | plain |
lddate | timestamp with time zone | not null default …
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