Refactor format tests to use CliTest helper (#20953)

Co-authored-by: Micha Reiser <micha@reiser.io>

crates/ruff/tests/cli/main.rs

@@ -15,6 +15,7 @@ use std::{
 };
 use tempfile::TempDir;
 
+mod format;
 mod lint;
 
 const BIN_NAME: &str = "ruff";
@@ -57,6 +58,16 @@ impl CliTest {
         Self::with_settings(|_, settings| settings)
     }
 
+    pub(crate) fn with_files<'a>(
+        files: impl IntoIterator<Item = (&'a str, &'a str)>,
+    ) -> anyhow::Result<Self> {
+        let case = Self::new()?;
+        for file in files {
+            case.write_file(file.0, file.1)?;
+        }
+        Ok(case)
+    }
+
     pub(crate) fn with_settings(
         setup_settings: impl FnOnce(&Path, insta::Settings) -> insta::Settings,
     ) -> Result<Self> {
@@ -174,4 +185,10 @@ impl CliTest {
 
         command
     }
+
+    pub(crate) fn format_command(&self) -> Command {
+        let mut command = self.command();
+        command.args(["format", "--no-cache"]);
+        command
+    }
 }

crates/ruff/tests/cli/snapshots/cli__format__output_format_azure.snap

@@ -1,5 +1,5 @@
 ---
-source: crates/ruff/tests/format.rs
+source: crates/ruff/tests/cli/format.rs
 info:
   program: ruff
   args:

crates/ruff/tests/cli/snapshots/cli__format__output_format_concise.snap

@@ -1,5 +1,5 @@
 ---
-source: crates/ruff/tests/format.rs
+source: crates/ruff/tests/cli/format.rs
 info:
   program: ruff
   args:

crates/ruff/tests/cli/snapshots/cli__format__output_format_full.snap

@@ -1,5 +1,5 @@
 ---
-source: crates/ruff/tests/format.rs
+source: crates/ruff/tests/cli/format.rs
 info:
   program: ruff
   args:

crates/ruff/tests/cli/snapshots/cli__format__output_format_github.snap

@@ -1,5 +1,5 @@
 ---
-source: crates/ruff/tests/format.rs
+source: crates/ruff/tests/cli/format.rs
 info:
   program: ruff
   args:

crates/ruff/tests/cli/snapshots/cli__format__output_format_gitlab.snap

@@ -1,5 +1,5 @@
 ---
-source: crates/ruff/tests/format.rs
+source: crates/ruff/tests/cli/format.rs
 info:
   program: ruff
   args:

crates/ruff/tests/cli/snapshots/cli__format__output_format_grouped.snap

@@ -1,5 +1,5 @@
 ---
-source: crates/ruff/tests/format.rs
+source: crates/ruff/tests/cli/format.rs
 info:
   program: ruff
   args:
@@ -7,6 +7,7 @@ info:
     - "--no-cache"
     - "--output-format"
     - grouped
+    - "--preview"
     - "--check"
     - input.py
 ---

crates/ruff/tests/cli/snapshots/cli__format__output_format_json-lines.snap

@@ -1,5 +1,5 @@
 ---
-source: crates/ruff/tests/format.rs
+source: crates/ruff/tests/cli/format.rs
 info:
   program: ruff
   args:

crates/ruff/tests/cli/snapshots/cli__format__output_format_json.snap

@@ -1,5 +1,5 @@
 ---
-source: crates/ruff/tests/format.rs
+source: crates/ruff/tests/cli/format.rs
 info:
   program: ruff
   args:

crates/ruff/tests/cli/snapshots/cli__format__output_format_junit.snap

@@ -1,5 +1,5 @@
 ---
-source: crates/ruff/tests/format.rs
+source: crates/ruff/tests/cli/format.rs
 info:
   program: ruff
   args:

crates/ruff/tests/cli/snapshots/cli__format__output_format_pylint.snap

@@ -1,5 +1,5 @@
 ---
-source: crates/ruff/tests/format.rs
+source: crates/ruff/tests/cli/format.rs
 info:
   program: ruff
   args:
@@ -7,6 +7,7 @@ info:
     - "--no-cache"
     - "--output-format"
     - pylint
+    - "--preview"
     - "--check"
     - input.py
 ---

crates/ruff/tests/cli/snapshots/cli__format__output_format_rdjson.snap

@@ -1,5 +1,5 @@
 ---
-source: crates/ruff/tests/format.rs
+source: crates/ruff/tests/cli/format.rs
 info:
   program: ruff
   args:

crates/ruff/tests/cli/snapshots/cli__format__output_format_sarif.snap

@@ -1,5 +1,5 @@
 ---
-source: crates/ruff/tests/format.rs
+source: crates/ruff/tests/cli/format.rs
 info:
   program: ruff
   args: