View Source ct_cover (common_test v1.27.3)

Common Test framework code coverage support module.

This module exports help functions for performing code coverage analysis.

Summary

Functions

add_nodes(Nodes)

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

cross_cover_analyse(Level, Tests)

Accumulates cover results over multiple tests. See section Cross Cover Analysis in the User's Guide.

remove_nodes(Nodes)

Removes nodes from the current cover test.

Functions

Link to this function

add_nodes(Nodes)

View Source 
-spec 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.

Link to this function

cross_cover_analyse(Level, Tests)

View Source (since OTP R16B) 
-spec 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.

Link to this function

remove_nodes(Nodes)

View Source 
-spec 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.