Use fake rules for testing deprecation and removal infrastructure

crates/ruff/tests/integration_test.rs

@@ -824,7 +824,9 @@ fn nursery_prefix() {
     -:1:1: RUF901 [*] Hey this is a stable test rule with a safe fix.
     -:1:1: RUF902 Hey this is a stable test rule with an unsafe fix.
     -:1:1: RUF903 Hey this is a stable test rule with a display only fix.
-    Found 4 errors.
+    -:1:1: RUF920 Hey this is a deprecated test rule.
+    -:1:1: RUF921 Hey this is another deprecated test rule.
+    Found 6 errors.
     [*] 1 fixable with the `--fix` option (1 hidden fix can be enabled with the `--unsafe-fixes` option).
 
     ----- stderr -----
@@ -846,7 +848,9 @@ fn nursery_all() {
     -:1:1: RUF901 [*] Hey this is a stable test rule with a safe fix.
     -:1:1: RUF902 Hey this is a stable test rule with an unsafe fix.
     -:1:1: RUF903 Hey this is a stable test rule with a display only fix.
-    Found 5 errors.
+    -:1:1: RUF920 Hey this is a deprecated test rule.
+    -:1:1: RUF921 Hey this is another deprecated test rule.
+    Found 7 errors.
     [*] 1 fixable with the `--fix` option (1 hidden fix can be enabled with the `--unsafe-fixes` option).
 
     ----- stderr -----
@@ -1094,28 +1098,45 @@ fn preview_enabled_group_ignore() {
 #[test]
 fn removed_direct() {
     // Selection of a removed rule should fail
-    let mut cmd = RuffCheck::default().args(["--select", "PLR1706"]).build();
+    let mut cmd = RuffCheck::default().args(["--select", "RUF931"]).build();
     assert_cmd_snapshot!(cmd, @r###"
     success: false
     exit_code: 2
     ----- stdout -----
 
     ----- stderr -----
     ruff failed
-      Cause: Rule `PLR1706` was removed and cannot be selected.
+      Cause: Rule `RUF931` was removed and cannot be selected.
+    "###);
+}
+
+#[test]
+fn removed_direct_multiple() {
+    // Selection of multiple removed rule should fail with a message
+    // including all the rules
+    let mut cmd = RuffCheck::default()
+        .args(["--select", "RUF930", "--select", "RUF931"])
+        .build();
+    assert_cmd_snapshot!(cmd, @r###"
+    success: false
+    exit_code: 2
+    ----- stdout -----
+
+    ----- stderr -----
+    ruff failed
+      Cause: The following rules have been removed and cannot be selected:
+        - RUF930
+        - RUF931
+
     "###);
 }
 
 #[test]
 fn removed_indirect() {
     // Selection _including_ a removed rule without matching should not fail
     // nor should the rule be used
-    let mut cmd = RuffCheck::default().args(["--select", "PLR"]).build();
-    assert_cmd_snapshot!(cmd.pass_stdin(r###"
-# This would have been a PLR1706 violation
-x, y = 1, 2
-maximum = x >= y and x or y
-"""###), @r###"
+    let mut cmd = RuffCheck::default().args(["--select", "RUF93"]).build();
+    assert_cmd_snapshot!(cmd, @r###"
     success: true
     exit_code: 0
     ----- stdout -----
@@ -1128,74 +1149,49 @@ maximum = x >= y and x or y
 fn deprecated_direct() {
     // Selection of a deprecated rule without preview enabled should still work
     // but a warning should be displayed
-    let mut cmd = RuffCheck::default().args(["--select", "TRY200"]).build();
-    assert_cmd_snapshot!(cmd
-        .pass_stdin(r###"
-def reciprocal(n):
-    try:
-        return 1 / n
-    except ZeroDivisionError:
-        raise ValueError()
-"###), @r###"
+    let mut cmd = RuffCheck::default().args(["--select", "RUF920"]).build();
+    assert_cmd_snapshot!(cmd, @r###"
     success: false
     exit_code: 1
     ----- stdout -----
-    -:6:9: TRY200 Use `raise from` to specify exception cause
+    -:1:1: RUF920 Hey this is a deprecated test rule.
     Found 1 error.
 
     ----- stderr -----
-    warning: Rule `TRY200` is deprecated and will be removed in a future release.
+    warning: Rule `RUF920` is deprecated and will be removed in a future release.
     "###);
 }
 
 #[test]
 fn deprecated_multiple_direct() {
     let mut cmd = RuffCheck::default()
-        .args(["--select", "ANN101", "--select", "ANN102"])
+        .args(["--select", "RUF920", "--select", "RUF921"])
         .build();
-    assert_cmd_snapshot!(cmd
-        .pass_stdin(r###"
-class Foo:
-    def a(self):
-        pass
-    
-    @classmethod
-    def b(cls):
-        pass
-"###), @r###"
+    assert_cmd_snapshot!(cmd, @r###"
     success: false
     exit_code: 1
     ----- stdout -----
-    -:3:11: ANN101 Missing type annotation for `self` in method
-    -:7:11: ANN102 Missing type annotation for `cls` in classmethod
+    -:1:1: RUF920 Hey this is a deprecated test rule.
+    -:1:1: RUF921 Hey this is another deprecated test rule.
     Found 2 errors.
 
     ----- stderr -----
-    warning: Rule `ANN102` is deprecated and will be removed in a future release.
-    warning: Rule `ANN101` is deprecated and will be removed in a future release.
+    warning: Rule `RUF921` is deprecated and will be removed in a future release.
+    warning: Rule `RUF920` is deprecated and will be removed in a future release.
     "###);
 }
 
 #[test]
 fn deprecated_indirect() {
-    // `ANN` includes deprecated rules `ANN101` and `ANN102` but should not warn
+    // `RUF92` includes deprecated rules but should not warn
     // since it is not a "direct" selection
-    let mut cmd = RuffCheck::default().args(["--select", "ANN1"]).build();
-    assert_cmd_snapshot!(cmd
-        .pass_stdin(r###"
-class Foo:
-    def a(self):
-        pass
-    
-    @classmethod
-    def b(cls):
-        pass
-"###), @r###"
+    let mut cmd = RuffCheck::default().args(["--select", "RUF92"]).build();
+    assert_cmd_snapshot!(cmd, @r###"
     success: false
     exit_code: 1
     ----- stdout -----
-    -:3:11: ANN101 Missing type annotation for `self` in method
-    -:7:11: ANN102 Missing type annotation for `cls` in classmethod
+    -:1:1: RUF920 Hey this is a deprecated test rule.
+    -:1:1: RUF921 Hey this is another deprecated test rule.
     Found 2 errors.
 
     ----- stderr -----
@@ -1206,40 +1202,26 @@ class Foo:
 fn deprecated_direct_preview_enabled() {
     // Direct selection of a deprecated rule in preview should fail
     let mut cmd = RuffCheck::default()
-        .args(["--select", "TRY200", "--preview"])
+        .args(["--select", "RUF920", "--preview"])
         .build();
-    assert_cmd_snapshot!(cmd
-        .pass_stdin(r###"
-def reciprocal(n):
-    try:
-        return 1 / n
-    except ZeroDivisionError:
-        raise ValueError()
-"###), @r###"
+    assert_cmd_snapshot!(cmd, @r###"
     success: false
     exit_code: 2
     ----- stdout -----
 
     ----- stderr -----
     ruff failed
-      Cause: Selection of deprecated rule `TRY200` is not allowed when preview is enabled.
+      Cause: Selection of deprecated rule `RUF920` is not allowed when preview is enabled.
     "###);
 }
 
 #[test]
 fn deprecated_indirect_preview_enabled() {
-    // `TRY200` is deprecated and should be off by default in preview.
+    // `RUF920` is deprecated and should be off by default in preview.
     let mut cmd = RuffCheck::default()
-        .args(["--select", "TRY", "--preview"])
+        .args(["--select", "RUF92", "--preview"])
         .build();
-    assert_cmd_snapshot!(cmd
-        .pass_stdin(r###"
-def reciprocal(n):
-    try:
-        return 1 / n
-    except ZeroDivisionError:
-        raise ValueError()
-"###), @r###"
+    assert_cmd_snapshot!(cmd, @r###"
     success: true
     exit_code: 0
     ----- stdout -----
@@ -1253,25 +1235,18 @@ fn deprecated_multiple_direct_preview_enabled() {
     // Direct selection of the deprecated rules in preview should fail with
     // a message listing all of the rule codes
     let mut cmd = RuffCheck::default()
-        .args(["--select", "ANN101", "--select", "ANN102", "--preview"])
+        .args(["--select", "RUF920", "--select", "RUF921", "--preview"])
         .build();
-    assert_cmd_snapshot!(cmd
-        .pass_stdin(r###"
-def reciprocal(n):
-    try:
-        return 1 / n
-    except ZeroDivisionError:
-        raise ValueError()
-"###), @r###"
+    assert_cmd_snapshot!(cmd, @r###"
     success: false
     exit_code: 2
     ----- stdout -----
 
     ----- stderr -----
     ruff failed
       Cause: Selection of deprecated rules is not allowed when preview is enabled. Remove selection of:
-    	- ANN102
-    	- ANN101
+    	- RUF921
+    	- RUF920
 
     "###);
 }
@@ -1793,7 +1768,9 @@ extend-safe-fixes = ["RUF9"]
     -:1:1: RUF901 Hey this is a stable test rule with a safe fix.
     -:1:1: RUF902 [*] Hey this is a stable test rule with an unsafe fix.
     -:1:1: RUF903 Hey this is a stable test rule with a display only fix.
-    Found 4 errors.
+    -:1:1: RUF920 Hey this is a deprecated test rule.
+    -:1:1: RUF921 Hey this is another deprecated test rule.
+    Found 6 errors.
     [*] 1 fixable with the `--fix` option (1 hidden fix can be enabled with the `--unsafe-fixes` option).
 
     ----- stderr -----

crates/ruff_linter/src/codes.rs

@@ -951,6 +951,14 @@ pub fn code_to_rule(linter: Linter, code: &str) -> Option<(RuleGroup, Rule)> {
         #[cfg(feature = "test-rules")]
         #[allow(deprecated)]
         (Ruff, "912") => (RuleGroup::Nursery, rules::ruff::rules::NurseryTestRule),
+        #[cfg(feature = "test-rules")]
+        (Ruff, "920") => (RuleGroup::Deprecated, rules::ruff::rules::DeprecatedTestRule),
+        #[cfg(feature = "test-rules")]
+        (Ruff, "921") => (RuleGroup::Deprecated, rules::ruff::rules::AnotherDeprecatedTestRule),
+        #[cfg(feature = "test-rules")]
+        (Ruff, "930") => (RuleGroup::Removed, rules::ruff::rules::RemovedTestRule),
+        #[cfg(feature = "test-rules")]
+        (Ruff, "931") => (RuleGroup::Removed, rules::ruff::rules::AnotherRemovedTestRule),
 
 
         // flake8-django

crates/ruff_linter/src/linter.rs

@@ -236,6 +236,16 @@ pub fn check_path(
                 }
                 Rule::NurseryTestRule => test_rules::NurseryTestRule::diagnostic(locator, indexer),
                 Rule::PreviewTestRule => test_rules::PreviewTestRule::diagnostic(locator, indexer),
+                Rule::DeprecatedTestRule => {
+                    test_rules::DeprecatedTestRule::diagnostic(locator, indexer)
+                }
+                Rule::AnotherDeprecatedTestRule => {
+                    test_rules::AnotherDeprecatedTestRule::diagnostic(locator, indexer)
+                }
+                Rule::RemovedTestRule => test_rules::RemovedTestRule::diagnostic(locator, indexer),
+                Rule::AnotherRemovedTestRule => {
+                    test_rules::AnotherRemovedTestRule::diagnostic(locator, indexer)
+                }
                 _ => unreachable!("All test rules must have an implementation"),
             };
             if let Some(diagnostic) = diagnostic {