diff --git a/‎src/rules/md022_blanks_around_headings.rs‎
Lines changed: 8 additions & 0 deletions b/‎src/rules/md022_blanks_around_headings.rs‎
Lines changed: 8 additions & 0 deletions
diff --git a/‎tests/cli/cli_config_override_test.rs‎
Lines changed: 88 additions & 0 deletions b/‎tests/cli/cli_config_override_test.rs‎
Lines changed: 88 additions & 0 deletions
@@ -733,6 +733,14 @@ impl Rule for MD022BlanksAroundHeadings {
     }
 
     crate::impl_rule_config_methods!(MD022Config);
+
+    fn polymorphic_config_keys(&self) -> &'static [&'static str] {
+        // Both options accept either one integer for every heading level or an
+        // array of six integers, one for each of h1 through h6. The serialized
+        // defaults are scalar, so validation must not reject the array form
+        // before MD022's deserializer can read it.
+        &["lines-above", "lines-below"]
+    }
 }
 
 #[cfg(test)]
 
@@ -425,3 +425,91 @@ fn inline_override_unknown_global_warns() {
         "expected 'Unknown global option' warning for top-level key, got:\nstderr: {stderr}"
     );
 }
+
+/// Issue #841: MD022 accepts a six-entry array, so validation must not infer the
+/// scalar default's integer type as the only valid representation.
+#[test]
+fn md022_per_level_inline_override_is_accepted_and_applied() {
+    let dir = tempdir().unwrap();
+    fs::write(dir.path().join("a.md"), "# Title\n\n## Section\n\nBody.\n").unwrap();
+
+    let output = Command::new(rumdl_bin())
+        .current_dir(dir.path())
+        .args([
+            "check",
+            "--no-config",
+            "--no-cache",
+            "--deny-config-warnings",
+            "--config",
+            "MD022.lines-above=[1,3,1,1,1,1]",
+            "a.md",
+        ])
+        .output()
+        .unwrap();
+
+    let stdout = String::from_utf8_lossy(&output.stdout);
+    let stderr = String::from_utf8_lossy(&output.stderr);
+    assert_eq!(
+        output.status.code(),
+        Some(1),
+        "the valid config should run and report the MD022 finding, not fail validation:\nstdout: {stdout}\nstderr: {stderr}"
+    );
+    assert!(
+        stdout.contains("[MD022] Expected 3 blank lines above heading"),
+        "the h2-specific value should be applied:\nstdout: {stdout}\nstderr: {stderr}"
+    );
+    assert!(
+        !stderr.contains("[config warning]"),
+        "a documented MD022 array must not produce a config warning:\n{stderr}"
+    );
+}
+
+/// The file-backed form follows the same validation path and supports `-1` in
+/// either per-level array, as documented by MD022.
+#[test]
+fn md022_per_level_config_file_is_accepted_and_applied() {
+    let dir = tempdir().unwrap();
+    fs::write(
+        dir.path().join("custom.toml"),
+        "[MD022]\nlines-above = [-1, 3, 1, 1, 1, 1]\nlines-below = [1, 1, 3, 1, 1, 1]\n",
+    )
+    .unwrap();
+    fs::write(
+        dir.path().join("a.md"),
+        "# Title\n\n## Section\n\n### Subsection\n\nBody.\n",
+    )
+    .unwrap();
+
+    let output = Command::new(rumdl_bin())
+        .current_dir(dir.path())
+        .args([
+            "check",
+            "--no-cache",
+            "--deny-config-warnings",
+            "--config",
+            "custom.toml",
+            "a.md",
+        ])
+        .output()
+        .unwrap();
+
+    let stdout = String::from_utf8_lossy(&output.stdout);
+    let stderr = String::from_utf8_lossy(&output.stderr);
+    assert_eq!(
+        output.status.code(),
+        Some(1),
+        "the valid config should run and report findings, not fail validation:\nstdout: {stdout}\nstderr: {stderr}"
+    );
+    assert!(
+        stdout.contains("[MD022] Expected 3 blank lines above heading"),
+        "the h2-specific lines-above value should be applied:\n{stdout}"
+    );
+    assert!(
+        stdout.contains("[MD022] Expected 3 blank lines below heading"),
+        "the h3-specific lines-below value should be applied:\n{stdout}"
+    );
+    assert!(
+        !stderr.contains("[config warning]"),
+        "documented MD022 arrays must not produce config warnings:\n{stderr}"
+    );
+}
Original file line number	Diff line number	Diff line change
`@@ -733,6 +733,14 @@ impl Rule for MD022BlanksAroundHeadings {`
`733`	`733`	`}`
`734`	`734`
`735`	`735`	`crate::impl_rule_config_methods!(MD022Config);`
	`736`	`+`
	`737`	`+ fn polymorphic_config_keys(&self) -> &'static [&'static str] {`
	`738`	`+ // Both options accept either one integer for every heading level or an`
	`739`	`+ // array of six integers, one for each of h1 through h6. The serialized`
	`740`	`+ // defaults are scalar, so validation must not reject the array form`
	`741`	`+ // before MD022's deserializer can read it.`
	`742`	`+ &["lines-above", "lines-below"]`
	`743`	`+ }`
`736`	`744`	`}`
`737`	`745`
`738`	`746`	`#[cfg(test)]`