List own-mutants from in-tree config

Concretely, this excludes console.rs, which is excluded in the config

.cargo/mutants.toml

@@ -1,4 +1,4 @@
 # cargo-mutants configuration
 
-error_values = ["::anyhow::anyhow!(\"mutated\")"]
+error_values = ["::anyhow::anyhow!(\"mutated!\")"]
 exclude_globs = ["src/console.rs"]

src/snapshots/cargo_mutants__visit__test__expected_mutants_for_own_source_tree.snap

@@ -25,128 +25,6 @@ src/config.rs: replace Config::read_file -> Result<Config> with Ok(Default::defa
 src/config.rs: replace Config::read_file -> Result<Config> with Err(::anyhow::anyhow!("mutated!"))
 src/config.rs: replace Config::read_tree_config -> Result<Config> with Ok(Default::default())
 src/config.rs: replace Config::read_tree_config -> Result<Config> with Err(::anyhow::anyhow!("mutated!"))
-src/console.rs: replace Console::walk_tree_start with ()
-src/console.rs: replace Console::walk_tree_update with ()
-src/console.rs: replace Console::walk_tree_done with ()
-src/console.rs: replace Console::scenario_started -> Result<()> with Ok(())
-src/console.rs: replace Console::scenario_started -> Result<()> with Err(::anyhow::anyhow!("mutated!"))
-src/console.rs: replace Console::scenario_finished with ()
-src/console.rs: replace += with -= in Console::scenario_finished
-src/console.rs: replace += with *= in Console::scenario_finished
-src/console.rs: replace += with -= in Console::scenario_finished
-src/console.rs: replace += with *= in Console::scenario_finished
-src/console.rs: replace += with -= in Console::scenario_finished
-src/console.rs: replace += with *= in Console::scenario_finished
-src/console.rs: replace += with -= in Console::scenario_finished
-src/console.rs: replace += with *= in Console::scenario_finished
-src/console.rs: replace += with -= in Console::scenario_finished
-src/console.rs: replace += with *= in Console::scenario_finished
-src/console.rs: replace += with -= in Console::scenario_finished
-src/console.rs: replace += with *= in Console::scenario_finished
-src/console.rs: replace += with -= in Console::scenario_finished
-src/console.rs: replace += with *= in Console::scenario_finished
-src/console.rs: replace || with && in Console::scenario_finished
-src/console.rs: replace && with || in Console::scenario_finished
-src/console.rs: replace && with || in Console::scenario_finished
-src/console.rs: replace && with || in Console::scenario_finished
-src/console.rs: replace || with && in Console::scenario_finished
-src/console.rs: replace Console::start_copy with ()
-src/console.rs: replace Console::finish_copy with ()
-src/console.rs: replace Console::copy_progress with ()
-src/console.rs: replace Console::discovered_mutants with ()
-src/console.rs: replace Console::start_testing_mutants with ()
-src/console.rs: replace Console::scenario_phase_started with ()
-src/console.rs: replace Console::scenario_phase_finished with ()
-src/console.rs: replace Console::lab_finished with ()
-src/console.rs: replace Console::clear with ()
-src/console.rs: replace Console::message with ()
-src/console.rs: replace Console::tick with ()
-src/console.rs: replace Console::make_terminal_writer -> TerminalWriter with Default::default()
-src/console.rs: replace Console::make_debug_log_writer -> DebugLogWriter with Default::default()
-src/console.rs: replace Console::set_debug_log with ()
-src/console.rs: replace Console::setup_global_trace -> Result<()> with Ok(())
-src/console.rs: replace Console::setup_global_trace -> Result<()> with Err(::anyhow::anyhow!("mutated!"))
-src/console.rs: replace <impl MakeWriter for TerminalWriter>::make_writer -> Self::Writer with Default::default()
-src/console.rs: replace <impl Write for TerminalWriter>::write -> std::io::Result<usize> with Ok(0)
-src/console.rs: replace <impl Write for TerminalWriter>::write -> std::io::Result<usize> with Ok(1)
-src/console.rs: replace <impl Write for TerminalWriter>::write -> std::io::Result<usize> with Err(::anyhow::anyhow!("mutated!"))
-src/console.rs: replace <impl Write for TerminalWriter>::flush -> std::io::Result<()> with Err(::anyhow::anyhow!("mutated!"))
-src/console.rs: replace <impl MakeWriter for DebugLogWriter>::make_writer -> Self::Writer with Default::default()
-src/console.rs: replace <impl Write for DebugLogWriter>::write -> io::Result<usize> with Ok(0)
-src/console.rs: replace <impl Write for DebugLogWriter>::write -> io::Result<usize> with Ok(1)
-src/console.rs: replace <impl Write for DebugLogWriter>::write -> io::Result<usize> with Err(::anyhow::anyhow!("mutated!"))
-src/console.rs: replace <impl Write for DebugLogWriter>::flush -> io::Result<()> with Ok(())
-src/console.rs: replace <impl Write for DebugLogWriter>::flush -> io::Result<()> with Err(::anyhow::anyhow!("mutated!"))
-src/console.rs: replace <impl Model for LabModel>::render -> String with String::new()
-src/console.rs: replace <impl Model for LabModel>::render -> String with "xyzzy".into()
-src/console.rs: replace += with -= in <impl Model for LabModel>::render
-src/console.rs: replace += with *= in <impl Model for LabModel>::render
-src/console.rs: replace > with == in <impl Model for LabModel>::render
-src/console.rs: replace > with < in <impl Model for LabModel>::render
-src/console.rs: replace > with == in <impl Model for LabModel>::render
-src/console.rs: replace > with < in <impl Model for LabModel>::render
-src/console.rs: replace > with == in <impl Model for LabModel>::render
-src/console.rs: replace > with < in <impl Model for LabModel>::render
-src/console.rs: replace > with == in <impl Model for LabModel>::render
-src/console.rs: replace > with < in <impl Model for LabModel>::render
-src/console.rs: replace > with == in <impl Model for LabModel>::render
-src/console.rs: replace > with < in <impl Model for LabModel>::render
-src/console.rs: replace - with + in <impl Model for LabModel>::render
-src/console.rs: replace - with / in <impl Model for LabModel>::render
-src/console.rs: replace / with % in <impl Model for LabModel>::render
-src/console.rs: replace / with * in <impl Model for LabModel>::render
-src/console.rs: replace * with + in <impl Model for LabModel>::render
-src/console.rs: replace * with / in <impl Model for LabModel>::render
-src/console.rs: replace > with == in <impl Model for LabModel>::render
-src/console.rs: replace > with < in <impl Model for LabModel>::render
-src/console.rs: replace * with + in <impl Model for LabModel>::render
-src/console.rs: replace * with / in <impl Model for LabModel>::render
-src/console.rs: replace / with % in <impl Model for LabModel>::render
-src/console.rs: replace / with * in <impl Model for LabModel>::render
-src/console.rs: replace + with - in <impl Model for LabModel>::render
-src/console.rs: replace + with * in <impl Model for LabModel>::render
-src/console.rs: replace LabModel::find_scenario_mut -> &mut ScenarioModel with Box::leak(Box::new(Default::default()))
-src/console.rs: replace == with != in LabModel::find_scenario_mut
-src/console.rs: replace LabModel::remove_scenario with ()
-src/console.rs: replace != with == in LabModel::remove_scenario
-src/console.rs: replace <impl Model for WalkModel>::render -> String with String::new()
-src/console.rs: replace <impl Model for WalkModel>::render -> String with "xyzzy".into()
-src/console.rs: replace == with != in <impl Model for WalkModel>::render
-src/console.rs: replace ScenarioModel::phase_started with ()
-src/console.rs: replace ScenarioModel::phase_finished with ()
-src/console.rs: replace <impl Model for ScenarioModel>::render -> String with String::new()
-src/console.rs: replace <impl Model for ScenarioModel>::render -> String with "xyzzy".into()
-src/console.rs: replace CopyModel::bytes_copied with ()
-src/console.rs: replace <impl Model for CopyModel>::render -> String with String::new()
-src/console.rs: replace <impl Model for CopyModel>::render -> String with "xyzzy".into()
-src/console.rs: replace nutmeg_options -> nutmeg::Options with Default::default()
-src/console.rs: replace style_outcome -> StyledObject<&'static str> with StyledObject::new()
-src/console.rs: replace style_outcome -> StyledObject<&'static str> with StyledObject::from_iter([""])
-src/console.rs: replace style_outcome -> StyledObject<&'static str> with StyledObject::new("")
-src/console.rs: replace style_outcome -> StyledObject<&'static str> with StyledObject::from("")
-src/console.rs: replace style_outcome -> StyledObject<&'static str> with StyledObject::from_iter(["xyzzy"])
-src/console.rs: replace style_outcome -> StyledObject<&'static str> with StyledObject::new("xyzzy")
-src/console.rs: replace style_outcome -> StyledObject<&'static str> with StyledObject::from("xyzzy")
-src/console.rs: replace style_secs -> String with String::new()
-src/console.rs: replace style_secs -> String with "xyzzy".into()
-src/console.rs: replace style_duration -> String with String::new()
-src/console.rs: replace style_duration -> String with "xyzzy".into()
-src/console.rs: replace format_mb -> String with String::new()
-src/console.rs: replace format_mb -> String with "xyzzy".into()
-src/console.rs: replace style_mb -> StyledObject<String> with StyledObject::new()
-src/console.rs: replace style_mb -> StyledObject<String> with StyledObject::from_iter([String::new()])
-src/console.rs: replace style_mb -> StyledObject<String> with StyledObject::new(String::new())
-src/console.rs: replace style_mb -> StyledObject<String> with StyledObject::from(String::new())
-src/console.rs: replace style_mb -> StyledObject<String> with StyledObject::from_iter(["xyzzy".into()])
-src/console.rs: replace style_mb -> StyledObject<String> with StyledObject::new("xyzzy".into())
-src/console.rs: replace style_mb -> StyledObject<String> with StyledObject::from("xyzzy".into())
-src/console.rs: replace style_scenario -> Cow<'static, str> with Cow::Borrowed("")
-src/console.rs: replace style_scenario -> Cow<'static, str> with Cow::Owned("".to_owned())
-src/console.rs: replace style_scenario -> Cow<'static, str> with Cow::Borrowed("xyzzy")
-src/console.rs: replace style_scenario -> Cow<'static, str> with Cow::Owned("xyzzy".to_owned())
-src/console.rs: replace plural -> String with String::new()
-src/console.rs: replace plural -> String with "xyzzy".into()
-src/console.rs: replace == with != in plural
 src/copy_tree.rs: replace copy_tree -> Result<TempDir> with Ok(Default::default())
 src/copy_tree.rs: replace copy_tree -> Result<TempDir> with Err(::anyhow::anyhow!("mutated!"))
 src/copy_tree.rs: replace += with -= in copy_tree

src/visit.rs

@@ -543,10 +543,13 @@ fn attr_is_mutants_skip(attr: &Attribute) -> bool {
 
 #[cfg(test)]
 mod test {
+    use std::path::Path;
+
     use indoc::indoc;
     use itertools::Itertools;
 
     use super::*;
+    use crate::config::Config;
     use crate::package::Package;
     use crate::source::SourceFile;
 
@@ -585,11 +588,11 @@ mod test {
     /// To stop it being too noisy, we use a custom format with no line numbers.
     #[test]
     fn expected_mutants_for_own_source_tree() {
-        let options = Options {
-            error_values: vec!["::anyhow::anyhow!(\"mutated!\")".to_owned()],
-            show_line_col: false,
-            ..Default::default()
-        };
+        let config = Config::read_file(Path::new("./.cargo/mutants.toml")).expect("Read config");
+        let args =
+            Args::try_parse_from(["mutants", "--list", "--line-col=false"]).expect("Parse args");
+        let mut options = Options::new(&args, &config).expect("Build options");
+        options.colors = false; // TODO: Use a command-line arg.
         let mut list_output = String::new();
         let console = Console::new();
         let workspace = Workspace::open(