test(remove): Extend the formatting tested

tests/testsuite/cargo_remove/optional_dep_feature_formatting/in

@@ -1 +0,0 @@
-../remove-basic.in/

tests/testsuite/cargo_remove/optional_dep_feature_formatting/in/Cargo.toml

@@ -0,0 +1,42 @@
+[package]
+name = "cargo-remove-test-fixture"
+version = "0.1.0"
+
+[[bin]]
+name = "main"
+path = "src/main.rs"
+
+[build-dependencies]
+semver = "0.1.0"
+
+[dependencies]
+docopt = { version = "0.6", optional = true }
+rustc-serialize = { version = "0.4", optional = true }
+semver = "0.1"
+toml = { version = "0.1", optional = true }
+clippy = { version = "0.4", optional = true }
+
+[dev-dependencies]
+regex = "0.1.1"
+serde = "1.0.90"
+
+[features]
+std = [
+  # Leading clippy
+  "dep:clippy",  # trailing clippy
+
+  # Leading docopt
+  "dep:docopt",  # trailing docopt
+
+  # Leading rustc-serialize
+  "dep:rustc-serialize",  # trailing rustc-serialize
+
+  # Leading serde/std
+  "serde/std",  # trailing serde/std
+
+  # Leading semver/std
+  "semver/std",  # trailing semver/std
+
+  # Leading toml
+  "dep:toml",  # trailing toml
+]

tests/testsuite/cargo_remove/optional_dep_feature_formatting/in/src/lib.rs

@@ -0,0 +1 @@
+

tests/testsuite/cargo_remove/optional_dep_feature_formatting/mod.rs

@@ -24,7 +24,7 @@ fn case() {
 
     snapbox::cmd::Command::cargo_ui()
         .arg("remove")
-        .args(["--dev", "serde"])
+        .args(["docopt", "toml"])
         .current_dir(cwd)
         .assert()
         .success()

tests/testsuite/cargo_remove/optional_dep_feature_formatting/out/Cargo.toml

@@ -10,14 +10,13 @@ path = "src/main.rs"
 semver = "0.1.0"
 
 [dependencies]
-docopt = "0.6"
-rustc-serialize = "0.4"
+rustc-serialize = { version = "0.4", optional = true }
 semver = "0.1"
-toml = "0.1"
-clippy = "0.4"
+clippy = { version = "0.4", optional = true }
 
 [dev-dependencies]
 regex = "0.1.1"
+serde = "1.0.90"
 
 [features]
-std = ["semver/std"]
+std = ["dep:clippy", "dep:rustc-serialize", "serde/std", "semver/std"]

tests/testsuite/cargo_remove/optional_dep_feature_formatting/stderr.log

@@ -1 +1,2 @@
-    Removing serde from dev-dependencies
+    Removing docopt from dependencies
+    Removing toml from dependencies