ct_cover(3)

NAME
ct_cover - Common Test framework code coverage support module.

DESCRIPTION

This module exports help functions for performing code coverage analysis.

FUNCTIONS

add_nodes(Nodes) -> {ok, StartedNodes} | {error, Reason} when Nodes :: node() | [node()], StartedNodes :: [node()], Reason :: cover_not_running | term().

    Adds nodes to current cover test. Notice that this only works if cover support is active.

    To have effect, this function is to be called from init_per_suite/1 (see ct_suite) before any tests are performed.
cross_cover_analyse(Level, Tests) -> ok when Level :: overview | details, Tests :: [{Tag :: atom(), Dir :: file:name_all()}].

    Accumulates cover results over multiple tests. See section Cross Cover Analysis in the User's Guide.
remove_nodes(Nodes) -> ok | {error, Reason} when Nodes :: node() | [node()], Reason :: cover_not_running | not_main_node | term().

    Removes nodes from the current cover test.

    Call this function to stop cover test on nodes previously added with ct_cover:add_nodes/1. Results on the remote node are transferred to the Common Test node.