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| -rw-r--r-- | tests/README.md | 77 |
1 files changed, 72 insertions, 5 deletions
diff --git a/tests/README.md b/tests/README.md index d600951ee..a5f89a2b1 100644 --- a/tests/README.md +++ b/tests/README.md @@ -64,6 +64,30 @@ with a base for application and package tests. That gives us: 3. Application Test - bootstrapping for application/tests [not started] 4. Package Test - bootstrapping for <package>/tests [not started] +### Test Environment: + +The test/Bootstrap.php file establishes global constants such as BASEPATH, +APPPATH, and VIEWPATH, initializing them to point to VFS locations. The +test case class employs vfsStream to make a clean virtual filesystem with +the necessary paths for every individual test. + +Within each test case, VFS directory objects are available to use as arguments +to the VFS convenience functions (see below): + +- ci_vfs_root: VFS filesystem root +- ci_app_root: Application directory +- ci_base_root: System directory +- ci_view_root: Views directory + +Classes being instantiated for testing are read from the actual filesystem +by the unit test autoloader, as are mockups created in tests/mocks. If you +need access to the real system directory, the SYSTEM_PATH constant always +points to it. + +Any other resources which need to be read from the path constants must be +created or cloned within your test. Functions for doing so are outlined +below. + ### CI_TestCase Documentation Test cases should extend CI_TestCase. This internally extends @@ -78,8 +102,14 @@ Current API is *not stable*. Names and implementations will change. $this->ci_set_config($key, $val) -Set the global config variables. If key is an array, it will -replace the entire config array. They are _not_ merged. +Set the global config variables in a mock Config object. If key is an array, +it will replace the entire config array. They are _not_ merged. If called +without any parameters, it will create the mock object but not set any values. +The mock Config object also provides rudimentary item() and load() stubs for +delivering configured values to classes being tested and handling config load +calls, respectively. The load() stub does _not_ actually load any files, it +only records the filename provided. Check the config->loaded array to verify +calls made. $this->ci_instance($obj) @@ -103,11 +133,48 @@ $GLOBALS key. For example: $cfg = new $cfg; // instantiates config and overwrites the CFG global $this->ci_set_core_class($name, $obj) - + An alternative way to set one of the core globals. + $this->ci_vfs_mkdir($name, $root) + +Creates a new directory in the test VFS. Pass a directory object to be the +parent directory or none to create a root-level directory. Returns the new +directory object. + + $this->ci_vfs_create($file, $content, $root, $path) + +Creates a new VFS file. '.php' is automatically appended to the filename if +it has no extension. Pass a directory object as the root, and an optional path +to recurse and/or create for containing the file. Path may be a string (such +as 'models/subdir') or an array (e.g. - array('models', 'subdir') ). Existing +directories in the VFS root will be recursed until a new directory is +identified - all others in the path will be created, so you can mix-and-match +old and new directories. If $file is an array (key = name, value = content), +multiple files will be created in the same path. + + $this->ci_vfs_clone($path) + +Clones an existing file from the real filesystem to exist in the same path of +the VFS. Path must be relative to the project root (i.e. - starting with +'system' or 'application'). + + $this->ci_vfs_path($path, $base) + +Creates a VFS file path string suitable for use with PHP file operations. Path +may be absolute from the VFS root, or relative to a base path. It is often +useful to use APPPATH or BASEPATH as the base. + + $this->helper($name) + +Loads a helper from the real filesystem. + + $this->lang($name) + +Loads a language file from the real filesystem and returns the $lang array. + $this->ci_get_config() __internal__ - + Returns the global config array. Internal as you shouldn't need to call this (you're setting it, after all). Used internally to make CI's get_config() work. @@ -155,4 +222,4 @@ I don't have a clue how this will work. Needs to be able to handle packages that are used multiple times within the application (i.e. EE/Pyro modules) -as well as packages that are used by multiple applications (library distributions) +as well as packages that are used by multiple applications (library distributions)
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