Rust: add basic integration tests

This adds testing of well-formed rust projects and workspaces, using
both `Cargo.toml` and `rust-project.json` manifests.

rust/integration-tests/conftest.py

@@ -0,0 +1,15 @@
+import pytest
+import shutil
+
+class _Manifests:
+    def __init__(self, cwd):
+        self.dir = cwd / "manifests"
+
+    def select(self, name: str):
+        (self.dir / name).rename(name)
+        shutil.rmtree(self.dir)
+
+
+@pytest.fixture
+def manifests(cwd):
+    return _Manifests(cwd)

rust/integration-tests/hello-project/functions.expected

@@ -0,0 +1 @@
+| src/main.rs:4:1:6:1 | main |

rust/integration-tests/hello-project/functions.ql

@@ -0,0 +1,5 @@
+import rust
+
+from Function f
+where exists(f.getLocation().getFile().getRelativePath())
+select f

rust/integration-tests/hello-project/manifests/Cargo.toml

@@ -0,0 +1,7 @@
+[workspace]
+[package]
+name = "hello-cargo"
+version = "0.1.0"
+edition = "2021"
+
+[dependencies]

rust/integration-tests/hello-project/manifests/rust-project.json

@@ -0,0 +1,7 @@
+{
+  "crates": [{
+    "root_module": "src/main.rs",
+    "edition": "2021",
+    "deps": []
+  }]
+}

rust/integration-tests/hello-project/source_archive.expected

@@ -0,0 +1,4 @@
+src/directory_module/mod.rs
+src/directory_module/nested_module.rs
+src/file_module.rs
+src/main.rs

rust/integration-tests/hello-project/src/directory_module/mod.rs

@@ -0,0 +1 @@
+mod nested_module;

rust/integration-tests/hello-project/src/main.rs

@@ -0,0 +1,6 @@
+mod file_module;
+mod directory_module;
+
+fn main() {
+    println!("Hello, world!");
+}

rust/integration-tests/hello-project/test_project.py

@@ -0,0 +1,7 @@
+def test_cargo(codeql, rust, manifests, check_source_archive):
+    manifests.select("Cargo.toml")
+    codeql.database.create()
+
+def test_rust_project(codeql, rust, manifests, check_source_archive):
+    manifests.select("rust-project.json")
+    codeql.database.create()

rust/integration-tests/hello-workspace/exe/Cargo.toml

@@ -0,0 +1,7 @@
+[package]
+name = "exe"
+version = "0.1.0"
+edition = "2021"
+
+[dependencies]
+lib = { path = "../lib" }

rust/integration-tests/hello-workspace/exe/src/main.rs

@@ -0,0 +1,7 @@
+use lib::a_module::hello;
+
+mod a_module;
+
+fn main() {
+    hello();
+}

rust/integration-tests/hello-workspace/functions.expected

@@ -0,0 +1,2 @@
+| exe/src/main.rs:5:1:7:1 | main |
+| lib/src/a_module/mod.rs:1:1:3:1 | hello |

rust/integration-tests/hello-workspace/functions.ql

@@ -0,0 +1,5 @@
+import rust
+
+from Function f
+where exists(f.getLocation().getFile().getRelativePath())
+select f

rust/integration-tests/hello-workspace/lib/Cargo.toml

@@ -0,0 +1,6 @@
+[package]
+name = "lib"
+version = "0.1.0"
+edition = "2021"
+
+[dependencies]

rust/integration-tests/hello-workspace/lib/src/a_module/mod.rs

@@ -0,0 +1,3 @@
+pub fn hello() {
+    println!("Hello, world!");
+}

rust/integration-tests/hello-workspace/lib/src/lib.rs

@@ -0,0 +1 @@
+pub mod a_module;

rust/integration-tests/hello-workspace/manifests/Cargo.toml

@@ -0,0 +1,3 @@
+[workspace]
+members = [ "exe", "lib" ]
+resolver = "2"

rust/integration-tests/hello-workspace/manifests/rust-project.json

@@ -0,0 +1,14 @@
+{
+  "crates": [
+    {
+      "root_module": "exe/src/main.rs",
+      "edition": "2021",
+      "deps": [{"crate": 1, "name": "lib"}]
+    },
+    {
+      "root_module": "lib/src/lib.rs",
+      "edition": "2021",
+      "deps": []
+    }
+  ]
+}

rust/integration-tests/hello-workspace/source_archive.expected

@@ -0,0 +1,4 @@
+exe/src/a_module.rs
+exe/src/main.rs
+lib/src/a_module/mod.rs
+lib/src/lib.rs

rust/integration-tests/hello-workspace/test_workspace.py

@@ -0,0 +1,7 @@
+def test_cargo(codeql, rust, manifests, check_source_archive):
+    manifests.select("Cargo.toml")
+    codeql.database.create()
+
+def test_rust_project(codeql, rust, manifests, check_source_archive):
+    manifests.select("rust-project.json")
+    codeql.database.create()

rust/integration-tests/qlpack.lock.yml

@@ -0,0 +1,4 @@
+---
+dependencies: {}
+compiled: false
+lockVersion: 1.0.0

rust/integration-tests/qlpack.yml

@@ -0,0 +1,8 @@
+name: codeql/rust-integration-tests
+groups: [rust, test]
+dependencies:
+  codeql/rust-queries: ${workspace}
+  codeql/rust-all: ${workspace}
+extractor: rust
+tests: .
+warnOnImplicitThis: true

rust/integration-tests/test.py

@@ -1,4 +0,0 @@
-# dummy test to get CI going
-
-def test(codeql, rust):
-    pass