A/C + + unit Test catch

1.catch Single File resource download: (Test proof 2017-year single file on it, 2010 need a package of documents, praise technical progress)

Https://raw.githubusercontent.com/philsquared/Catch/master/single_include/catch.hpp

Location of the 2.catch file

(1) Direct and tested C + + files are placed under a folder

(2) include plus search path

Include<>: First go to the system directory your change file, if not in the current directory to find.

Include "": "First look in the current directory, if not found, then to the system directory to find

Use of 3.catch

•  1.  #define一个标识符和#include一个头文件。Add unit tests to multiple files and you just need to join #include "catch.hpp" . Only one implementation file #define CATCH_CONFIG_MAIN is added and #include "catch.hpp" is the best.
• 2. TEST_CASE：宏引入测试用例。这个宏需要一个或两个参数，允许测试名自定义以及可选的一个或多个标签（ the name of the test case needs to be unique, and you can test the settings by specifying a wildcard or label expression. The name and label of the parameter are just string types. We don't have to declare a function or method or register a test case with a display. The function name is automatically generated in the background and registered using the static registration class. We can name our tests arbitrarily by the abstract function name.
• 3. REQUIRE write the test assertion using a macro.
• 4. Each SECTION will be executed from the beginningTEST_CASE，当我们进入到每个section时，我们已经知道v的大小是5且容量大于等于5。为了确保达到这些这些要求，我们使用REQUIRE 强制进行限制。他们的工作机制是：SECTION中包含if语句，并将结果返回到Catch中以确定哪个section将会执行。TEST_CASE每运行一次会执行一个section，其他section直接跳过。下一次则执行下一个section，如此反复直到没有新的section。

A/C + + unit Test catch