Fix tests when no stubs are present

Author: AJenbo

tests/common/mod.rs

@@ -212,6 +212,61 @@ class SimpleXMLElement
 }
 ";
 
+// ─── Exception class stubs ──────────────────────────────────────────────────
+
+static EXCEPTION_CLASS_STUB: &str = "\
+<?php
+class Exception implements Throwable
+{
+    public function __construct(string $message = \"\", int $code = 0, ?Throwable $previous = null) {}
+
+    /**
+     * @return string
+     */
+    final public function getMessage(): string {}
+
+    /**
+     * @return int
+     */
+    final public function getCode(): int {}
+
+    /**
+     * @return string
+     */
+    final public function getFile(): string {}
+
+    /**
+     * @return int
+     */
+    final public function getLine(): int {}
+
+    /**
+     * @return array
+     */
+    final public function getTrace(): array {}
+
+    /**
+     * @return string
+     */
+    final public function getTraceAsString(): string {}
+
+    /**
+     * @return ?Throwable
+     */
+    final public function getPrevious(): ?Throwable {}
+
+    /**
+     * @return string
+     */
+    public function __toString(): string {}
+}
+";
+
+static RUNTIME_EXCEPTION_CLASS_STUB: &str = "\
+<?php
+class RuntimeException extends Exception {}
+";
+
 // ─── Constant stubs ─────────────────────────────────────────────────────────
 
 static CONSTANTS_STUB: &str = "\
@@ -224,6 +279,16 @@ define('SORT_ASC', 4);
 define('SORT_DESC', 3);
 ";
 
+/// Create a test backend whose `stub_index` contains minimal `Exception`
+/// and `RuntimeException` stubs.  This makes catch-variable tests fully
+/// self-contained — they work without phpstorm-stubs installed.
+pub fn create_test_backend_with_exception_stubs() -> Backend {
+    let mut stubs: HashMap<&'static str, &'static str> = HashMap::new();
+    stubs.insert("Exception", EXCEPTION_CLASS_STUB);
+    stubs.insert("RuntimeException", RUNTIME_EXCEPTION_CLASS_STUB);
+    Backend::new_test_with_stubs(stubs)
+}
+
 /// Create a test backend whose `stub_index` contains minimal `UnitEnum`
 /// and `BackedEnum` stubs.  This makes "embedded stub" tests fully
 /// self-contained — they no longer require a prior `composer install`.

tests/completion_variables.rs

@@ -1,6 +1,8 @@
 mod common;
 
-use common::{create_psr4_workspace, create_test_backend};
+use common::{
+    create_psr4_workspace, create_test_backend, create_test_backend_with_exception_stubs,
+};
 use tower_lsp::LanguageServer;
 use tower_lsp::lsp_types::*;
 
@@ -9442,7 +9444,7 @@ async fn test_completion_catch_variable_top_level() {
 async fn test_completion_catch_variable_no_own_methods_no_namespace() {
     // Same as the namespace test but WITHOUT a namespace — verifies
     // whether the bug is namespace-specific or inheritance-specific.
-    let backend = create_test_backend();
+    let backend = create_test_backend_with_exception_stubs();
 
     let uri = Url::parse("file:///catch_bare_no_ns.php").unwrap();
     let text = concat!(
@@ -9513,7 +9515,7 @@ async fn test_completion_catch_variable_namespace_no_own_methods() {
     // Reproduces: namespace + exception class with NO own methods (only
     // inherits from \RuntimeException) → catch variable should still
     // resolve via inheritance.
-    let backend = create_test_backend();
+    let backend = create_test_backend_with_exception_stubs();
 
     let uri = Url::parse("file:///catch_ns_bare.php").unwrap();
     let text = concat!(