Set up testing infrastructure and add some integration tests (fixes #68)

1 files changed, 95 insertions, 0 deletions

diff --git a/tests/cli.rs b/tests/cli.rs
new file mode 100644
index 0000000..14b81f3
--- /dev/null
+++ b/tests/cli.rs
@@ -0,0 +1,95 @@
+use assert_cmd::prelude::*;
+use assert_fs::fixture::TempDir;
+use assert_fs::prelude::*;
+use clap::{crate_name, crate_version};
+use portpicker::pick_unused_port;
+use reqwest;
+use select::document::Document;
+use select::predicate::Text;
+use std::process::{Command, Stdio};
+use std::thread::sleep;
+use std::time::Duration;
+
+type Error = Box<std::error::Error>;
+
+static FILES: &[&str] = &["test.txt", "test.html", "test.mkv"];
+
+// Test fixture which creates a temporary directory with a few files inside.
+pub fn tmpdir() -> Result<TempDir, Error> {
+    let tmpdir = assert_fs::TempDir::new()?;
+    for &file in FILES {
+        tmpdir.child(file).touch()?;
+    }
+    Ok(tmpdir)
+}
+
+#[test]
+/// Starts and serves requests without any options.
+fn starts_ok_with_no_option() -> Result<(), Error> {
+    let tmpdir = tmpdir()?;
+    let mut child = Command::cargo_bin("miniserve")?
+        .arg(tmpdir.path())
+        .stdout(Stdio::null())
+        .spawn()?;
+
+    sleep(Duration::from_secs(1));
+
+    let body = reqwest::get("http://localhost:8080")?;
+    let parsed = Document::from_read(body)?;
+    for &file in FILES {
+        assert!(parsed.find(Text).any(|x| x.text() == file));
+    }
+
+    child.kill()?;
+
+    Ok(())
+}
+
+#[test]
+/// Starts and serves requests on a non-default port.
+fn starts_ok_with_non_default_port() -> Result<(), Error> {
+    let tmpdir = tmpdir()?;
+
+    let port = pick_unused_port().unwrap();
+    let mut child = Command::cargo_bin("miniserve")?
+        .arg(tmpdir.path())
+        .arg("-p")
+        .arg(port.to_string())
+        .stdout(Stdio::null())
+        .spawn()?;
+
+    sleep(Duration::from_secs(1));
+
+    let body = reqwest::get("http://localhost:8080")?;
+    let parsed = Document::from_read(body)?;
+    for &file in FILES {
+        assert!(parsed.find(Text).any(|x| x.text() == file));
+    }
+
+    child.kill()?;
+
+    Ok(())
+}
+
+#[test]
+/// Show help and exit.
+fn help_shows() -> Result<(), Error> {
+    Command::cargo_bin("miniserve")?
+        .arg("-h")
+        .assert()
+        .success();
+
+    Ok(())
+}
+
+#[test]
+/// Show version and exit.
+fn version_shows() -> Result<(), Error> {
+    Command::cargo_bin("miniserve")?
+        .arg("-V")
+        .assert()
+        .success()
+        .stdout(format!("{} {}\n", crate_name!(), crate_version!()));
+
+    Ok(())
+}