356e05177c
I wanted to get the infrastructure in place for starters for our *nu-cmd-extra* crate... The plan is to put inside here the following commands... * bits * bytes * math I thought it would be easier to do one at a time as well as get the nu-cmd-extra crate out there on crates.io for this upcoming release... Once this lands the infrastructure will be in place to move over the other noted commands for now... And then add other stuff we do NOT want to be in 1.0.
75 lines
2.4 KiB
Rust
75 lines
2.4 KiB
Rust
#[cfg(test)]
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use nu_protocol::engine::Command;
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#[cfg(test)]
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pub fn test_examples(cmd: impl Command + 'static) {
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test_examples::test_examples(cmd);
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}
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#[cfg(test)]
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mod test_examples {
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use nu_cmd_lang::example_support::{
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check_all_signature_input_output_types_entries_have_examples,
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check_example_evaluates_to_expected_output,
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check_example_input_and_output_types_match_command_signature,
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};
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use nu_protocol::{
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engine::{Command, EngineState, StateWorkingSet},
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Type,
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};
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use std::collections::HashSet;
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pub fn test_examples(cmd: impl Command + 'static) {
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let examples = cmd.examples();
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let signature = cmd.signature();
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let mut engine_state = make_engine_state(cmd.clone_box());
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let cwd = std::env::current_dir().expect("Could not get current working directory.");
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let mut witnessed_type_transformations = HashSet::<(Type, Type)>::new();
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for example in examples {
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if example.result.is_none() {
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continue;
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}
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witnessed_type_transformations.extend(
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check_example_input_and_output_types_match_command_signature(
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&example,
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&cwd,
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&mut make_engine_state(cmd.clone_box()),
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&signature.input_output_types,
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signature.operates_on_cell_paths(),
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signature.vectorizes_over_list,
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),
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);
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check_example_evaluates_to_expected_output(&example, cwd.as_path(), &mut engine_state);
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}
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check_all_signature_input_output_types_entries_have_examples(
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signature,
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witnessed_type_transformations,
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);
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}
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fn make_engine_state(cmd: Box<dyn Command>) -> Box<EngineState> {
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let mut engine_state = Box::new(EngineState::new());
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let delta = {
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// Base functions that are needed for testing
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// Try to keep this working set small to keep tests running as fast as possible
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let mut working_set = StateWorkingSet::new(&engine_state);
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// Adding the command that is being tested to the working set
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working_set.add_decl(cmd);
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working_set.render()
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};
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engine_state
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.merge_delta(delta)
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.expect("Error merging delta");
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engine_state
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}
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}
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