test: Add library package into non-workspace package

Author: linyihai

tests/testsuite/cargo_new/add_members_to_non_workspace/in/Cargo.toml

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

tests/testsuite/cargo_new/add_members_to_non_workspace/in/src/main.rs

@@ -0,0 +1 @@
+fn main() {}

tests/testsuite/cargo_new/add_members_to_non_workspace/mod.rs

@@ -0,0 +1,22 @@
+use cargo_test_support::compare::assert_ui;
+use cargo_test_support::curr_dir;
+use cargo_test_support::CargoCommand;
+use cargo_test_support::Project;
+
+#[cargo_test]
+fn case() {
+    let project = Project::from_template(curr_dir!().join("in"));
+    let project_root = project.root();
+    let cwd = &project_root;
+
+    snapbox::cmd::Command::cargo_ui()
+        .arg("new")
+        .args(["bar", "--lib"])
+        .current_dir(cwd)
+        .assert()
+        .success()
+        .stdout_matches_path(curr_dir!().join("stdout.log"))
+        .stderr_matches_path(curr_dir!().join("stderr.log"));
+
+    assert_ui().subset_matches(curr_dir!().join("out"), &project_root);
+}

tests/testsuite/cargo_new/add_members_to_non_workspace/out/Cargo.toml

@@ -0,0 +1,7 @@
+workspace = { members = ["bar"] }
+[package]
+name = "foo"
+version = "0.1.0"
+edition = "2021"
+
+[dependencies]

tests/testsuite/cargo_new/add_members_to_non_workspace/out/bar/Cargo.toml

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

tests/testsuite/cargo_new/add_members_to_non_workspace/out/bar/src/lib.rs

@@ -0,0 +1,14 @@
+pub fn add(left: usize, right: usize) -> usize {
+    left + right
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[test]
+    fn it_works() {
+        let result = add(2, 2);
+        assert_eq!(result, 4);
+    }
+}

tests/testsuite/cargo_new/add_members_to_non_workspace/out/src/main.rs

@@ -0,0 +1 @@
+fn main() {}

tests/testsuite/cargo_new/add_members_to_non_workspace/stderr.log

@@ -0,0 +1,2 @@
+    Creating library `bar` package
+note: see more `Cargo.toml` keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html

tests/testsuite/cargo_new/add_members_to_non_workspace/stdout.log

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