使用Automake进行单元测试 [英] Unit tests using Automake

问题描述

我正在使用GNU自动工具与团队中的其他人一起工作在一个项目中.在项目中，我们对每个不重要的C ++类都使用单元测试.我发现有对单元测试的支持.为此，我正在使用以下结构:

 ./
   + tests/
     + Makefile.am
     + classA_test.cc
     ....
     + classB_test.cc
   + src/
   + lib/
   + Makefile.am 

问题来了，因为我的主要Makefile.am使用的是 subdir-objects 选项-请注意，我没有对源文件使用递归的makefile-我无法导出变量- as，AM_CPPFLAGS--到另一个Makefile.到目前为止，我使用以下方法使之起作用:

  $ make check      

但是当我这样做时，我总是遇到路径和选项方面的问题

  $ make distcheck

所以我的问题是，处理单元测试的标准方法是什么?

只要我从tests/Makefile.am中删除子目录对象，就可以使它起作用.现在它会发出一些警告，但会编译.仍然似乎不是处理单元测试的合适方法

解决方案

经过一些研究，我想出了处理单元测试和Automake的适当方法:

遵循先前的方案:

./
+ tests/
  + Makefile.am
  + classA_test.cc
  ....
  + classB_test.cc
+ src/
+ lib/
+ Makefile.am

根目录中的makefile.am将是主目录，该目录将调用tests目录中的makefile.

$ cat Makefile.am
SUBDIRS = . tests   # (Super Important) note the "." before tests,  
                    # it means it will be executed first
....

$ cat test/Makefile.am
AM_CXXFLAGS = ...
AM_LDFLAGS  = -L @top_srcdir@/lib #If needed
LDADD       = -llibraryfortests   #If needed

TESTS = test1 .. testN
test1_SOURCES = test1.cc ../src/somewhere/classtotest.cc
testN_SOURCES = ...

$ cat configure.ac
AM_INIT_AUTOMAKE([subdir-objects])
AC_CONFIG_FILES([Makefile])                                                                                                                                                                   
AC_CONFIG_FILES([tests/Makefile])
... 

现在，如果您想运行测试

$ sh ../pathto/configure 
$ make check 

dist [check]也应该起作用

$ make distcheck
...
make[3]: Entering directory `/home/vicente/test/tests'
PASS: settings
============================================================================
Testsuite summary for Pepinos 00.13.15
============================================================================
# TOTAL: 1
# PASS:  1
# SKIP:  0
# XFAIL: 0
# FAIL:  0
# XPASS: 0
# ERROR: 0
============================================================================
make[3]: Leaving directory `/home/vicente/test/tests'
...

要回答另一个问题吗?

问: 我无法将我的变量(例如AM_CPPFLAGS)导出到另一个Makefile .

A.是的，但是我总是可以在configure.ac和AC_SUBT中声明一个变量，以使其对其他Makefile.am可见

来源: https://stackoverflow.com/a/29255889/2420872

I am working in a project with other people in the team using GNU autotools. In the project we are using unit test for each non trivial C++ class. I found out that there is support for unit testing. For that I am using this structure:

 ./
   + tests/
     + Makefile.am
     + classA_test.cc
     ....
     + classB_test.cc
   + src/
   + lib/
   + Makefile.am 

The problem comes since my main Makefile.am is using subdir-objects options --note that I am not using recursive makefile for the source files--, I cannot export my variables --such as, AM_CPPFLAGS-- to the other Makefile. So far I made it work using:

  $ make check      

but I keep getting problems for the paths and the options when I do

  $ make distcheck

So my questions is, how is the standard way to deal with unit tests?

EDIT:

I made it work as long as I remove the subdir-objects from the tests/Makefile.am. Now it throw some warnings but it compiles. Still it seems not to be an appropriate way to deal with unit tests

解决方案

After some research I came up with the appropiate way to deal with Unit tests and Automake:

Following the previous scheme:

./
+ tests/
  + Makefile.am
  + classA_test.cc
  ....
  + classB_test.cc
+ src/
+ lib/
+ Makefile.am

The makefile.am in the root will be the main one, this one calls the makefile in the tests directory

$ cat Makefile.am
SUBDIRS = . tests   # (Super Important) note the "." before tests,  
                    # it means it will be executed first
....

$ cat test/Makefile.am
AM_CXXFLAGS = ...
AM_LDFLAGS  = -L @top_srcdir@/lib #If needed
LDADD       = -llibraryfortests   #If needed

TESTS = test1 .. testN
test1_SOURCES = test1.cc ../src/somewhere/classtotest.cc
testN_SOURCES = ...

$ cat configure.ac
AM_INIT_AUTOMAKE([subdir-objects])
AC_CONFIG_FILES([Makefile])                                                                                                                                                                   
AC_CONFIG_FILES([tests/Makefile])
... 

Now if you want to run the tests

$ sh ../pathto/configure 
$ make check 

As well dist[check] should work

$ make distcheck
...
make[3]: Entering directory `/home/vicente/test/tests'
PASS: settings
============================================================================
Testsuite summary for Pepinos 00.13.15
============================================================================
# TOTAL: 1
# PASS:  1
# SKIP:  0
# XFAIL: 0
# FAIL:  0
# XPASS: 0
# ERROR: 0
============================================================================
make[3]: Leaving directory `/home/vicente/test/tests'
...

So to answer the other question?

Q. I cannot export my variables --such as, AM_CPPFLAGS-- to the other Makefile.

A. True, but I can always declare a variable in the configure.ac and AC_SUBT to make it visible to other Makefile.am

Sources: https://stackoverflow.com/a/29255889/2420872

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