Update macrotest to 1.0.9 and enable in CI

.github/workflows/ci.yml

@@ -16,6 +16,10 @@ jobs:
       - uses: actions/checkout@v3
       - uses: dtolnay/rust-toolchain@nightly
       - run: cd test_suite && cargo test --features unstable
+      - uses: dtolnay/install@cargo-expand
+        if: github.event_name != 'pull_request'
+      - run: cd test_suite && cargo test --features expandtest --test expandtest -- --include-ignored
+        if: github.event_name != 'pull_request'
 
   windows:
     name: Test suite (windows)

test_suite/Cargo.toml

@@ -18,7 +18,8 @@ toolchain_find = "0.2"
 
 [dev-dependencies]
 fnv = "1.0"
-macrotest = "=1.0.0"
+macrotest = "=1.0.9"
+prettyplease = "=0.1.14"
 rustversion = "1.0"
 serde = { path = "../serde", features = ["rc", "derive"] }
 serde_derive = { path = "../serde_derive", features = ["deserialize_in_place"] }

test_suite/build.rs

@@ -18,12 +18,8 @@ fn has_cargo_expand() -> bool {
         .unwrap_or(false)
 }
 
-fn has_rustfmt() -> bool {
-    toolchain_find::find_installed_component("rustfmt").is_some()
-}
-
 fn main() {
-    if cfg!(feature = "expandtest") && has_cargo_expand() && has_rustfmt() {
+    if cfg!(feature = "expandtest") && has_cargo_expand() {
         println!("cargo:rustc-cfg=expandtest");
     }
 }