tests: Add lsif_contains_generated_constant test

.gitignore

@@ -1,6 +1,5 @@
-/target/
+target/
 /dist/
-crates/*/target
 **/*.rs.bk
 **/*.rs.pending-snap
 .idea/*

crates/rust-analyzer/tests/lsif-test-crate/Cargo.toml

@@ -0,0 +1,9 @@
+[package]
+name = "lsif-test-crate"
+version = "0.0.0"
+edition = "2021"
+publish = false
+
+[dependencies]
+
+[workspace]

crates/rust-analyzer/tests/lsif-test-crate/src/lib.rs

@@ -0,0 +1,13 @@
+#![allow(unused)]
+
+macro_rules! generate_const_from_identifier(
+    ($id:ident) => (
+        const _: () = { const $id: &str = "encoded_data"; };
+    )
+);
+
+generate_const_from_identifier!(REQ_001);
+mod tests {
+    use super::*;
+    generate_const_from_identifier!(REQ_002);
+}

crates/rust-analyzer/tests/slow-tests/cli.rs

@@ -0,0 +1,32 @@
+use std::process::Command;
+
+use test_utils::skip_slow_tests;
+
+const RA_BIN: &str = "../../target/debug/rust-analyzer";
+
+// If you choose to change the behavior of the lsif command and therefore
+// modify or remove this test, please inform the ferrocene/needy maintainers by
+// opening an issue at https://github.com/ferrocene/needy.
+#[test]
+fn lsif_contains_generated_constant() {
+    if skip_slow_tests() {
+        return;
+    }
+
+    // Arrange
+    let mut cmd = Command::new(RA_BIN);
+    cmd.args(["lsif", "tests/lsif-test-crate"]);
+
+    // Act
+    let output = cmd.output().unwrap();
+    let stdout = String::from_utf8(output.stdout).unwrap();
+
+    // Assert
+    assert!(stdout.contains("REQ_001"));
+    assert!(stdout.contains("lsif_test_crate"));
+
+    assert!(stdout.contains("REQ_002"));
+    assert!(stdout.contains("lsif_test_crate::tests"));
+
+    assert!(stdout.contains("encoded_data"));
+}

crates/rust-analyzer/tests/slow-tests/main.rs

@@ -10,6 +10,7 @@
 
 #![allow(clippy::disallowed_types)]
 
+mod cli;
 mod ratoml;
 mod support;
 mod testdir;