Mac OSX上MonoDevelop Unity版本的代码覆盖率

Question

So here is the context :

• I'm testing an application with NUnit on MonoDevelop (the Unity Version).

• I do not use UnityTestTools.

• I'm working in C#

My problem :

I'm looking for a solution to get my code coverage. I actually heard about MonoCov but i have no idea how to install it on my OSX. I also search for this options in MonoDevelop and i kept a look at some post on StackOverFlow but no i didn't find any solution for my particular case.

So does anyone has a solution ?

Answer 1

Depends upon which version of Mono is actually running the tests :

ie Which Mono version is running your nunit tests, if using the nunit embedded via MonoDevelop, thus you are using the Mono that is running MonoDevelop. If your tests are shelling out to mono or loading a separate app domain, which mono is used for unit-runner/console, etc...

Why? Older versions (3.x) include the internal cov profiler, but in newer versions this has been replaced by the code coverage filter.

To use the older monocov profiler you add the mono option "--profile=monocov" when 'debug' running your program.exe (via nunit runner, cmdline, etc..). This will generate a "program.exe.cov" file that can be loaded in the MonoCov gui.

Newer mono versions use the profiler coverage filter "--profile=log:coverage" that produces output like the following and does not have a gui like MonoCov, it produces plain text:

Coverage Summary:
    xCorFlags (/Users/administrator/code/corflags/xCorFlags.exe) 26% covered (42 methods - 11 covered)
        <Module> ?% covered (0 methods - 1 covered)
        CorFlags.CorFlagsSettings 25% covered (4 methods - 1 covered)
        CorFlags.MainClass 50% covered (2 methods - 1 covered)
        CorFlags.CommandLineParser 40% covered (20 methods - 8 covered)

Disclaimer: That is from my own blog post

If you are using an older version of Mono (due to Unity?, which version are they using now?), then the movcov profiler 'should' work and produce the .cov files. At that point you just need the MonoCov Gui that can be built from source (update the following to match your OS-X env):

# Clone the MonoCov repo
git clone https://github.com/mono/monocov.git MonoCov
cd MonoCov
# A really old version of cecil and it not available as a nuget
curl http://go-mono.com/archive/cecil/cecil-0.6-bin.zip -o cecil-0.6-bin.zip
unzip cecil-0.6-bin.zip
# Make sure configure can find the Mono.Option source file
export PKG_CONFIG_PATH=/Library/Frameworks/Mono.framework/Versions/4.0.3/lib:/Library/Frameworks/Mono.framework/Versions/4.0.3/lib/pkgconfig:$PKG_CONFIG_PATH
export 
# Config to install to users home dir
/configure --cecil=$PWD/monocov/cecil-0.6/Mono.Cecil.dll --prefix $HOME/monocov
# Fix Makefile, gmcs no longer exists under Mono 4.x and Makefile is hard coded
sed -i.bak s/gmcs/mcs/g Makefile
# Pass -m32 to make since OS-X Mono framework is still 32-bit
CC="cc -m32" make
# Install does not properly create bin dir, do it before the first install
mkdir $HOME/monocov/bin
# Install..
make install

Disclaimer: This is from another blog post of mine .