Initial version of UI tests.

ci/test-ui.sh

@@ -0,0 +1,17 @@
+#!/usr/bin/env bash
+# shellcheck disable=SC1091
+
+set -eo pipefail
+
+ci_dir=$(dirname "${BASH_SOURCE[0]}")
+ci_dir=$(realpath "${ci_dir}")
+. "${ci_dir}"/shared.sh
+
+if [[ -z "${TARGET}" ]]; then
+    export TARGET="x86_64-unknown-linux-gnu"
+fi
+
+cargo xtask ui-test \
+    --target "${TARGET}" \
+    --engine "${CROSS_ENGINE}" \
+    --verbose

src/cli.rs

@@ -54,7 +54,7 @@ pub fn fmt_subcommands(stdout: &str, msg_info: &mut MessageInfo) -> Result<()> {
     }
     if !host.is_empty() {
         msg_info.print("Host Commands:")?;
-        for line in &cross {
+        for line in &host {
             msg_info.print(line)?;
         }
     }

xtask/Cargo.toml

@@ -23,3 +23,4 @@ once_cell = "1.15"
 semver = "1"
 chrono = "0.4"
 wildmatch = "2.1.1"
+tempfile = "3.3.0"

xtask/src/main.rs

@@ -8,6 +8,8 @@ pub mod crosstool;
 pub mod hooks;
 pub mod install_git_hooks;
 pub mod target_info;
+pub mod temp;
+pub mod ui;
 pub mod util;
 
 use ci::CiJob;
@@ -23,6 +25,8 @@ use self::crosstool::ConfigureCrosstool;
 use self::hooks::{Check, Test};
 use self::install_git_hooks::InstallGitHooks;
 use self::target_info::TargetInfo;
+use self::temp::MakeTempDir;
+use self::ui::UiTest;
 
 #[derive(Parser, Debug)]
 #[clap(version, about, long_about = None)]
@@ -65,6 +69,10 @@ enum Commands {
     ValidateChangelog(ValidateChangelog),
     /// Code generation
     Codegen(Codegen),
+    /// Create temporary directory
+    MakeTempDir(MakeTempDir),
+    /// Run user-interface suite.
+    UiTest(UiTest),
 }
 
 fn is_toolchain(toolchain: &str) -> cross::Result<String> {
@@ -131,6 +139,12 @@ pub fn main() -> cross::Result<()> {
             changelog::validate_changelog(args, &mut msg_info)?;
         }
         Commands::Codegen(args) => codegen::codegen(args)?,
+        Commands::MakeTempDir(args) => temp::make_temp_dir(args)?,
+        Commands::UiTest(args) => {
+            let mut msg_info = get_msg_info!(args, args.verbose)?;
+            let engine = get_engine!(args, msg_info)?;
+            ui::ui_test(args, &engine, &mut msg_info)?
+        }
     }
 
     Ok(())

xtask/src/temp.rs

@@ -0,0 +1,35 @@
+use std::path::{Path, PathBuf};
+use std::{fs, mem};
+
+use crate::util;
+use clap::Args;
+use cross::shell::MessageInfo;
+use cross::ToUtf8;
+
+/// Create and print a temporary directory to stdout.
+#[derive(Args, Debug)]
+pub struct MakeTempDir {
+    /// `tmp` to create the temporary directory inside.
+    /// Defaults to `"${target_dir}/tmp"`.
+    tmpdir: Option<PathBuf>,
+}
+
+pub fn make_temp_dir(MakeTempDir { tmpdir }: MakeTempDir) -> cross::Result<()> {
+    let mut msg_info = MessageInfo::create(0, false, None)?;
+    let dir = temp_dir(tmpdir.as_deref(), &mut msg_info)?;
+    msg_info.print(dir.to_utf8()?)
+}
+
+pub fn temp_dir(parent: Option<&Path>, msg_info: &mut MessageInfo) -> cross::Result<PathBuf> {
+    let parent = match parent {
+        Some(parent) => parent.to_owned(),
+        None => util::project_dir(msg_info)?.join("target").join("tmp"),
+    };
+    fs::create_dir_all(&parent)?;
+    let dir = tempfile::TempDir::new_in(&parent)?;
+    let path = dir.path().to_owned();
+    mem::drop(dir);
+
+    fs::create_dir(&path)?;
+    Ok(path)
+}