test: add tests for exclude patterns and clipboard CLI flags

13 new tests covering glob matching (lock files, nested generated,
directory patterns, multiple patterns), TOML deserialization of
exclude_patterns, and CLI flag parsing for --exclude and --clipboard.
308 tests total.

Author: Sephyi

tests/config.rs

@@ -2,6 +2,10 @@
 //
 // SPDX-License-Identifier: PolyForm-Noncommercial-1.0.0
 
+use std::path::PathBuf;
+
+use clap::Parser;
+use commitbee::cli::Cli;
 use commitbee::config::{Config, Provider};
 
 // ─── Default values ──────────────────────────────────────────────────────────
@@ -107,6 +111,141 @@ fn format_section_defaults() {
     assert!(config.format.lowercase_subject);
 }
 
+// ─── Exclude patterns ─────────────────────────────────────────────────────────
+
+#[test]
+fn exclude_patterns_default_empty() {
+    let config = Config::default();
+    assert!(config.exclude_patterns.is_empty());
+}
+
+#[test]
+fn exclude_patterns_from_toml() {
+    let toml_str = r#"
+exclude_patterns = ["*.lock", "**/*.generated.*"]
+"#;
+    let config: Config = toml::from_str(toml_str).unwrap();
+    assert_eq!(config.exclude_patterns.len(), 2);
+    assert_eq!(config.exclude_patterns[0], "*.lock");
+    assert_eq!(config.exclude_patterns[1], "**/*.generated.*");
+}
+
+#[test]
+fn exclude_patterns_empty_list_from_toml() {
+    let toml_str = r#"
+exclude_patterns = []
+"#;
+    let config: Config = toml::from_str(toml_str).unwrap();
+    assert!(config.exclude_patterns.is_empty());
+}
+
+// ─── Exclude pattern glob matching ────────────────────────────────────────────
+
+#[test]
+fn exclude_glob_matches_lock_files() {
+    use globset::{Glob, GlobSetBuilder};
+
+    let patterns = vec!["*.lock".to_string()];
+    let mut builder = GlobSetBuilder::new();
+    for p in &patterns {
+        builder.add(Glob::new(p).unwrap());
+    }
+    let set = builder.build().unwrap();
+
+    assert!(set.is_match(PathBuf::from("Cargo.lock")));
+    assert!(set.is_match(PathBuf::from("yarn.lock")));
+    assert!(!set.is_match(PathBuf::from("package-lock.json")));
+    assert!(!set.is_match(PathBuf::from("src/main.rs")));
+}
+
+#[test]
+fn exclude_glob_matches_nested_generated() {
+    use globset::{Glob, GlobSetBuilder};
+
+    let patterns = vec!["**/*.generated.*".to_string()];
+    let mut builder = GlobSetBuilder::new();
+    for p in &patterns {
+        builder.add(Glob::new(p).unwrap());
+    }
+    let set = builder.build().unwrap();
+
+    assert!(set.is_match(PathBuf::from("src/schema.generated.rs")));
+    assert!(set.is_match(PathBuf::from("deep/nested/file.generated.ts")));
+    assert!(!set.is_match(PathBuf::from("src/main.rs")));
+}
+
+#[test]
+fn exclude_glob_multiple_patterns() {
+    use globset::{Glob, GlobSetBuilder};
+
+    let patterns = vec!["*.lock".to_string(), "*.min.js".to_string()];
+    let mut builder = GlobSetBuilder::new();
+    for p in &patterns {
+        builder.add(Glob::new(p).unwrap());
+    }
+    let set = builder.build().unwrap();
+
+    assert!(set.is_match(PathBuf::from("Cargo.lock")));
+    assert!(set.is_match(PathBuf::from("bundle.min.js")));
+    assert!(!set.is_match(PathBuf::from("src/app.js")));
+}
+
+#[test]
+fn exclude_glob_directory_pattern() {
+    use globset::{Glob, GlobSetBuilder};
+
+    let patterns = vec!["vendor/**".to_string()];
+    let mut builder = GlobSetBuilder::new();
+    for p in &patterns {
+        builder.add(Glob::new(p).unwrap());
+    }
+    let set = builder.build().unwrap();
+
+    assert!(set.is_match(PathBuf::from("vendor/lib.rs")));
+    assert!(set.is_match(PathBuf::from("vendor/deep/nested.rs")));
+    assert!(!set.is_match(PathBuf::from("src/vendor.rs")));
+}
+
+// ─── CLI flag parsing ─────────────────────────────────────────────────────────
+
+#[test]
+fn cli_exclude_single() {
+    let cli = Cli::try_parse_from(["commitbee", "--exclude", "*.lock"]).unwrap();
+    assert_eq!(cli.exclude, vec!["*.lock"]);
+}
+
+#[test]
+fn cli_exclude_multiple() {
+    let cli =
+        Cli::try_parse_from(["commitbee", "--exclude", "*.lock", "--exclude", "*.min.js"]).unwrap();
+    assert_eq!(cli.exclude, vec!["*.lock", "*.min.js"]);
+}
+
+#[test]
+fn cli_exclude_empty_by_default() {
+    let cli = Cli::try_parse_from(["commitbee"]).unwrap();
+    assert!(cli.exclude.is_empty());
+}
+
+#[test]
+fn cli_clipboard_flag() {
+    let cli = Cli::try_parse_from(["commitbee", "--clipboard"]).unwrap();
+    assert!(cli.clipboard);
+}
+
+#[test]
+fn cli_clipboard_default_false() {
+    let cli = Cli::try_parse_from(["commitbee"]).unwrap();
+    assert!(!cli.clipboard);
+}
+
+#[test]
+fn cli_clipboard_with_dry_run() {
+    let cli = Cli::try_parse_from(["commitbee", "--clipboard", "--dry-run"]).unwrap();
+    assert!(cli.clipboard);
+    assert!(cli.dry_run);
+}
+
 // ─── Error handling ──────────────────────────────────────────────────────────
 
 #[test]