Public API ## default_timeout 
default_timeout(size, timeout)
Provide a sane default for *_test timeout attribute. The [test-encyclopedia](https://bazel.build/reference/test-encyclopedia) says > Tests may return arbitrarily fast regardless of timeout. > A test is not penalized for an overgenerous timeout, although a warning may be issued: > you should generally set your timeout as tight as you can without incurring any flakiness. However Bazel's default for timeout is medium, which is dumb given this guidance. It also says: > Tests which do not explicitly specify a timeout have one implied based on the test's size as follows Therefore if size is specified, we should allow timeout to take its implied default. If neither is set, then we can fix Bazel's wrong default here to avoid warnings under `--test_verbose_timeout_warnings`. This function can be used in a macro which wraps a testing rule. **PARAMETERS** | Name | Description | Default Value | | :------------- | :------------- | :------------- | | size | the size attribute of a test target | none | | timeout | the timeout attribute of a test target | none | **RETURNS** "short" if neither is set, otherwise timeout ## file_exists 
file_exists(path)
Check whether a file exists. Useful in macros to set defaults for a configuration file if it is present. This can only be called during the loading phase, not from a rule implementation. **PARAMETERS** | Name | Description | Default Value | | :------------- | :------------- | :------------- | | path | a label, or a string which is a path relative to this package | none | ## glob_directories 
glob_directories(include, kwargs)
**PARAMETERS** | Name | Description | Default Value | | :------------- | :------------- | :------------- | | include |

-

| none | | kwargs |

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| none | ## is_external_label 
is_external_label(param)
Returns True if the given Label (or stringy version of a label) represents a target outside of the workspace **PARAMETERS** | Name | Description | Default Value | | :------------- | :------------- | :------------- | | param | a string or label | none | **RETURNS** a bool ## path_to_workspace_root 
path_to_workspace_root()
Returns the path to the workspace root under bazel **RETURNS** Path to the workspace root ## propagate_well_known_tags 
propagate_well_known_tags(tags)
Returns a list of tags filtered from the input set that only contains the ones that are considered "well known" These are listed in Bazel's documentation: https://docs.bazel.build/versions/main/test-encyclopedia.html#tag-conventions https://docs.bazel.build/versions/main/be/common-definitions.html#common-attributes **PARAMETERS** | Name | Description | Default Value | | :------------- | :------------- | :------------- | | tags | List of tags to filter | [] | **RETURNS** List of tags that only contains the well known set ## to_label 
to_label(param)
Converts a string to a Label. If Label is supplied, the same label is returned. **PARAMETERS** | Name | Description | Default Value | | :------------- | :------------- | :------------- | | param | a string representing a label or a Label | none | **RETURNS** a Label