Create tests for rav1e binary

.gitattributes

@@ -0,0 +1 @@
+*.y4m binary

Cargo.toml

@@ -108,6 +108,7 @@ features = ["parallel"]
 signal-hook = { version = "0.1.9", optional = true }
 
 [dev-dependencies]
+assert_cmd = "0.12"
 criterion = "0.3"
 pretty_assertions = "0.6"
 interpolate_name = "0.2.2"

tests/.gitignore

@@ -0,0 +1 @@
+!small_input.y4m

tests/binary.rs

@@ -0,0 +1,93 @@
+#[cfg(feature = "binaries")]
+mod binary {
+  use assert_cmd::Command;
+  use rand::distributions::Alphanumeric;
+  use rand::{thread_rng, Rng};
+  use std::env::temp_dir;
+  use std::fs::File;
+  use std::io::Read;
+  use std::path::PathBuf;
+
+  fn get_y4m_input() -> Vec<u8> {
+    let mut input = File::open(&format!(
+      "{}/tests/small_input.y4m",
+      env!("CARGO_MANIFEST_DIR")
+    ))
+    .unwrap();
+    let mut data = Vec::new();
+    input.read_to_end(&mut data).unwrap();
+    data
+  }
+
+  fn get_tempfile_path(extension: &str) -> PathBuf {
+    let mut path = temp_dir();
+    let filename =
+      thread_rng().sample_iter(&Alphanumeric).take(12).collect::<String>();
+    path.push(format!("{}.{}", filename, extension));
+    path
+  }
+
+  #[test]
+  fn one_pass_qp_based() {
+    let mut cmd = Command::cargo_bin("rav1e").unwrap();
+    let outfile = get_tempfile_path("ivf");
+
+    cmd
+      .arg("--quantizer")
+      .arg("100")
+      .arg("-o")
+      .arg(&outfile)
+      .arg("-")
+      .write_stdin(get_y4m_input())
+      .assert()
+      .success();
+  }
+
+  #[test]
+  fn one_pass_bitrate_based() {
+    let mut cmd = Command::cargo_bin("rav1e").unwrap();
+    let outfile = get_tempfile_path("ivf");
+
+    cmd
+      .arg("--bitrate")
+      .arg("1000")
+      .arg("-o")
+      .arg(&outfile)
+      .arg("-")
+      .write_stdin(get_y4m_input())
+      .assert()
+      .success();
+  }
+
+  #[test]
+  fn two_pass_bitrate_based() {
+    let outfile = get_tempfile_path("ivf");
+    let passfile = get_tempfile_path("pass");
+
+    let mut cmd1 = Command::cargo_bin("rav1e").unwrap();
+    cmd1
+      .arg("--bitrate")
+      .arg("1000")
+      .arg("-o")
+      .arg(&outfile)
+      .arg("--first-pass")
+      .arg(&passfile)
+      .arg("-")
+      .write_stdin(get_y4m_input())
+      .assert()
+      .success();
+
+    let mut cmd2 = Command::cargo_bin("rav1e").unwrap();
+    cmd2
+      .arg("--bitrate")
+      .arg("1000")
+      .arg("-o")
+      .arg(&outfile)
+      .arg("--second-pass")
+      .arg(&passfile)
+      .arg("-")
+      .write_stdin(get_y4m_input())
+      .assert()
+      .success();
+  }
+}