Merge pull request #81 from madig/macos-test-cmd-in-shell

macOS: run test_command in shell

README.md

@@ -238,8 +238,13 @@ Optional.
 
 Shell command to run tests after the build. The wheel will be installed automatically and available for import from the tests. `{project}` can be used as a placeholder for the absolute path to the project's root and will be replaced by `cibuildwheel`.
 
+On Linux and Mac, the command runs in a shell, so you can write things like `cmd1 && cmd2`. 
+
 Example: `nosetests {project}/tests`
 
+Platform-specific variants also available:
+`CIBW_TEST_COMMAND_MACOS` | `CIBW_TEST_COMMAND_WINDOWS` | `CIBW_TEST_COMMAND_LINUX`
+
 | Environment variable: `CIBW_TEST_REQUIRES`
 | ---
 
@@ -250,6 +255,9 @@ Space-separated list of dependencies required for running the tests.
 Example: `pytest`  
 Example: `nose==1.3.7 moto==0.4.31`
 
+Platform-specific variants also available:
+`CIBW_TEST_REQUIRES_MACOS` | `CIBW_TEST_REQUIRES_WINDOWS` | `CIBW_TEST_REQUIRES_LINUX`
+
 --
 
 #### Example YML syntax