Use separate test for commands

- Remove unix only test

Author: jyn514

tests/buildtest/inside_docker.rs

@@ -12,15 +12,7 @@ static CONTAINER_PREFIX: &str = "/outside";
 #[test]
 #[cfg(unix)]
 fn test_hello_world() {
-    // regression test for https://github.com/rust-lang/rustwide/issues/30
-    let already_present = Path::new("docker").exists();
-    if !already_present {
-        std::fs::create_dir("docker").unwrap();
-    }
     execute("buildtest::test_hello_world").unwrap();
-    if !already_present {
-        std::fs::remove_dir("docker").unwrap();
-    }
 }
 
 fn execute(test: &str) -> Result<(), Error> {

tests/issue_30.rs

@@ -0,0 +1,24 @@
+use failure::Error;
+use rustwide::cmd::Command;
+use rustwide::WorkspaceBuilder;
+
+const USER_AGENT: &str = "rustwide-tests (https://github.com/rust-lang/rustwide)";
+
+#[test]
+fn run_binary_with_same_name_as_file() -> Result<(), Error> {
+	use std::fs;
+
+    let env = env_logger::Builder::new()
+        .filter_module("rustwide", log::LevelFilter::Info)
+        .default_format_timestamp(false)
+        .is_test(true)
+        .build();
+    rustwide::logging::init_with(env);
+	let tmpdir = tempfile::tempdir()?;
+	std::env::set_current_dir(&tmpdir)?;
+	fs::write("true", b"foobar")?;
+	let workspace = WorkspaceBuilder::new(tempfile::tempdir()?.path(), USER_AGENT).fast_init(true).init()?;
+	Command::new(&workspace, "true").run()?;
+
+	Ok(())
+}