mirror of
https://github.com/imjasonh/krust
synced 2026-07-08 14:55:35 +00:00
80656aa225
The test now accepts linker errors as expected behavior when building for detected platforms that lack cross-compilation toolchains on the current runner (e.g., ARM runners without x86_64 toolchains). 🤖 Generated with [Claude Code](https://claude.ai/code) Co-Authored-By: Claude <noreply@anthropic.com>
464 lines
15 KiB
Rust
464 lines
15 KiB
Rust
use anyhow::Result;
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use assert_cmd::Command;
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use predicates::prelude::*;
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use std::env;
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use std::process::Command as StdCommand;
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// Helper to get the appropriate test platform based on runtime architecture
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fn get_test_platform() -> &'static str {
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// In CI, test the native platform
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if env::var("CI").is_ok() {
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if cfg!(target_arch = "x86_64") {
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"linux/amd64"
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} else if cfg!(target_arch = "aarch64") {
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"linux/arm64"
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} else {
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"linux/amd64"
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}
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} else {
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// For local development, always use amd64 as it's most commonly available
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"linux/amd64"
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}
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}
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#[test]
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fn test_version_command() -> Result<()> {
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let mut cmd = Command::cargo_bin("krust")?;
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cmd.arg("--version");
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cmd.assert()
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.success()
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.stdout(predicate::str::contains("krust 0.1.0"));
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Ok(())
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}
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#[test]
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fn test_version_subcommand() -> Result<()> {
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let mut cmd = Command::cargo_bin("krust")?;
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cmd.arg("version");
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cmd.assert()
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.success()
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.stdout(predicate::str::contains("krust 0.1.0"));
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Ok(())
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}
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#[test]
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fn test_help_command() -> Result<()> {
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let mut cmd = Command::cargo_bin("krust")?;
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cmd.arg("--help");
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cmd.assert().success().stdout(predicate::str::contains(
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"A container image build tool for Rust applications",
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));
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Ok(())
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}
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#[test]
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fn test_build_help() -> Result<()> {
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let mut cmd = Command::cargo_bin("krust")?;
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cmd.arg("build").arg("--help");
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cmd.assert().success().stdout(predicate::str::contains(
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"Build a container image from a Rust application",
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));
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Ok(())
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}
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#[test]
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fn test_build_requires_repo_or_image() -> Result<()> {
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// Use the example directory
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let example_dir = env::current_dir()?.join("example").join("hello-krust");
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// Run krust build without KRUST_REPO or --image
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let mut cmd = Command::cargo_bin("krust")?;
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cmd.arg("build")
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.arg("--no-push")
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.arg(".") // Explicitly pass current directory
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.current_dir(&example_dir)
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.env_remove("KRUST_REPO");
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cmd.assert().failure().stderr(predicate::str::contains(
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"Either --image or KRUST_REPO must be set",
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));
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Ok(())
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}
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#[test]
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fn test_build_with_krust_repo_env() -> Result<()> {
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// Use the example directory
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let example_dir = env::current_dir()?.join("example").join("hello-krust");
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// Run krust build with KRUST_REPO env var
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let mut cmd = Command::cargo_bin("krust")?;
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cmd.arg("build")
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.arg("--no-push")
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.arg("--platform")
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.arg(get_test_platform())
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.arg(".") // Explicitly pass current directory
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.env("KRUST_REPO", "test.local")
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.current_dir(&example_dir);
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cmd.assert()
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.success()
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.stderr(predicate::str::contains("Building Rust project"))
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.stderr(predicate::str::contains(
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"Successfully built image for 1 platform(s)",
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));
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Ok(())
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}
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#[test]
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fn test_command_substitution_syntax() -> Result<()> {
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// Get the example project directory
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let example_dir = env::current_dir()?.join("example").join("hello-krust");
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// Test that output is clean for command substitution
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let mut cmd = Command::cargo_bin("krust")?;
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let output = cmd
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.arg("build")
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.arg("--no-push")
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.arg("--platform")
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.arg(get_test_platform())
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.arg("--image")
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.arg("test.local/hello:latest")
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.arg(".") // Explicitly pass current directory
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.current_dir(&example_dir)
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.output()?;
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// Stdout should be empty when --no-push is used
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let stdout = String::from_utf8_lossy(&output.stdout);
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assert!(
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stdout.trim().is_empty(),
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"Stdout should be empty with --no-push"
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);
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// Stderr should contain log messages
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let stderr = String::from_utf8_lossy(&output.stderr);
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assert!(stderr.contains("Building Rust project"));
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assert!(stderr.contains("Successfully built image"));
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Ok(())
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}
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#[test]
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fn test_verbose_logging() -> Result<()> {
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let example_dir = env::current_dir()?.join("example").join("hello-krust");
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let mut cmd = Command::cargo_bin("krust")?;
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cmd.arg("--verbose")
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.arg("build")
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.arg("--no-push")
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.arg("--platform")
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.arg(get_test_platform())
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.arg("--image")
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.arg("test.local/hello:latest")
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.arg(".") // Explicitly pass current directory
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.current_dir(&example_dir);
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cmd.assert()
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.success()
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.stderr(predicate::str::contains("DEBUG"));
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Ok(())
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}
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#[test]
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fn test_full_build_and_run_workflow() -> Result<()> {
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// This test requires Docker
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let docker_check = StdCommand::new("docker").arg("version").output();
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match docker_check {
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Ok(output) if output.status.success() => {
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// Docker is available, proceed with test
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}
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_ => {
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// Docker not available or not working
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panic!("Docker is required for this test but is not available");
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}
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}
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// Get the example project directory
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let example_dir = env::current_dir()?.join("example").join("hello-krust");
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// Build and push to ttl.sh
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// For the full workflow test, build for the actual native platform so Docker can run it
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let native_platform = if cfg!(target_arch = "aarch64") {
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"linux/arm64"
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} else {
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"linux/amd64"
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};
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let mut cmd = Command::cargo_bin("krust")?;
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let output = cmd
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.arg("build")
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.arg("--platform")
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.arg(native_platform)
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.arg(".") // Explicitly pass current directory
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.env("KRUST_REPO", "ttl.sh/krust-test")
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.current_dir(&example_dir)
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.output()?;
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if !output.status.success() {
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let stderr = String::from_utf8_lossy(&output.stderr);
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panic!("Build failed: {}", stderr);
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}
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// Get the image reference from stdout
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let image_ref = String::from_utf8_lossy(&output.stdout).trim().to_string();
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assert!(image_ref.starts_with("ttl.sh/krust-test/hello-krust@sha256:"));
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// Try to run the image
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let docker_output = StdCommand::new("docker")
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.args(&["run", "--rm", &image_ref])
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.output()?;
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if !docker_output.status.success() {
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let stderr = String::from_utf8_lossy(&docker_output.stderr);
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panic!("Docker run failed with image {}: {}", image_ref, stderr);
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}
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let docker_stdout = String::from_utf8_lossy(&docker_output.stdout);
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assert!(docker_stdout.contains("Hello from krust example!"));
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Ok(())
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}
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#[test]
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fn test_single_platform_build() -> Result<()> {
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let example_dir = env::current_dir()?.join("example").join("hello-krust");
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let platform = get_test_platform();
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let mut cmd = Command::cargo_bin("krust")?;
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cmd.arg("build")
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.arg("--no-push")
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.arg("--platform")
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.arg(platform)
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.arg("--image")
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.arg("test.local/single-platform:latest")
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.arg(".")
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.current_dir(&example_dir);
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cmd.assert()
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.success()
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.stderr(predicate::str::contains(format!(
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"Building for platform: {}",
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platform
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)))
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.stderr(predicate::str::contains(
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"Successfully built image for 1 platform(s)",
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));
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Ok(())
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}
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#[test]
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fn test_multi_platform_build() -> Result<()> {
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let example_dir = env::current_dir()?.join("example").join("hello-krust");
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let mut cmd = Command::cargo_bin("krust")?;
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// Test building for multiple platforms
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// This will use whatever targets are available
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cmd.arg("build")
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.arg("--no-push")
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.arg("--platform")
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.arg("linux/amd64,linux/arm64")
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.arg("--image")
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.arg("test.local/multi-platform:latest")
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.arg(".")
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.current_dir(&example_dir);
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// The command might fail if targets aren't installed, but we should test that it tries
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let output = cmd.output()?;
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if output.status.success() {
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// If it succeeds, verify we built for multiple platforms
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let stderr = String::from_utf8_lossy(&output.stderr);
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assert!(stderr.contains("Building for platform: linux/amd64"));
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assert!(stderr.contains("Building for platform: linux/arm64"));
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assert!(stderr.contains("Successfully built image for 2 platform(s)"));
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} else {
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// If it fails, it should be because of missing targets
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let stderr = String::from_utf8_lossy(&output.stderr);
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assert!(
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stderr.contains("target may not be installed")
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|| stderr.contains("linker")
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|| stderr.contains("cross-compilation")
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|| stderr.contains("not found"),
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"Build failed for unexpected reason: {}",
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stderr
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);
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}
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Ok(())
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}
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#[test]
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fn test_multi_arch_build_and_run() -> Result<()> {
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// This test requires Docker
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let docker_check = StdCommand::new("docker").arg("version").output();
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match docker_check {
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Ok(output) if output.status.success() => {
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// Docker is available, proceed with test
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}
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_ => {
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eprintln!("Docker is required for this test but is not available");
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return Ok(());
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}
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}
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let example_dir = env::current_dir()?.join("example").join("hello-krust");
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// Build multi-arch image and push to ttl.sh
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let mut cmd = Command::cargo_bin("krust")?;
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let output = cmd
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.arg("build")
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.arg("--platform")
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.arg("linux/amd64,linux/arm64")
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.arg(".")
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.env("KRUST_REPO", "ttl.sh/krust-multiarch-test")
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.current_dir(&example_dir)
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.output()?;
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if !output.status.success() {
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let stderr = String::from_utf8_lossy(&output.stderr);
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// If it fails due to missing targets, that's expected in some environments
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if stderr.contains("target may not be installed")
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|| stderr.contains("linker")
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|| stderr.contains("cross-compilation")
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|| stderr.contains("not found")
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{
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eprintln!("Skipping multi-arch run test - build failed due to missing toolchain");
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return Ok(());
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}
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panic!("Build failed unexpectedly: {}", stderr);
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}
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// Get the image reference from stdout
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let image_ref = String::from_utf8_lossy(&output.stdout).trim().to_string();
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assert!(image_ref.starts_with("ttl.sh/krust-multiarch-test/hello-krust"));
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// Try to run the image - it should work on the current architecture
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let docker_output = StdCommand::new("docker")
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.args(&["run", "--rm", &image_ref])
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.output()?;
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assert!(docker_output.status.success(), "Docker run failed");
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let docker_stdout = String::from_utf8_lossy(&docker_output.stdout);
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assert!(docker_stdout.contains("Hello from krust example!"));
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Ok(())
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}
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#[test]
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fn test_platform_detection_from_base_image() -> Result<()> {
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let example_dir = env::current_dir()?.join("example").join("hello-krust");
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let mut cmd = Command::cargo_bin("krust")?;
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cmd.arg("build")
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.arg("--no-push")
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.arg("--image")
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.arg("test.local/platform-detection:latest")
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.arg(".")
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.current_dir(&example_dir)
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.env("RUST_LOG", "info");
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// The default base image (cgr.dev/chainguard/static:latest) supports multiple platforms
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// so we should see platform detection happening
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let output = cmd.output()?;
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let stderr = String::from_utf8_lossy(&output.stderr);
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// We should always see platform detection
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assert!(stderr.contains("Detecting available platforms from base image"));
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assert!(stderr.contains("Detected platforms"));
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// The build might fail if we don't have all cross-compilation toolchains
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// (e.g., on ARM runners trying to build for x86_64)
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if !output.status.success() {
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assert!(
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stderr.contains("linker")
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|| stderr.contains("target may not be installed")
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|| stderr.contains("cross-compilation"),
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"Build failed for unexpected reason: {}",
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stderr
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);
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}
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Ok(())
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}
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#[test]
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fn test_explicit_platform_overrides_detection() -> Result<()> {
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let example_dir = env::current_dir()?.join("example").join("hello-krust");
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let platform = get_test_platform();
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let mut cmd = Command::cargo_bin("krust")?;
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cmd.arg("build")
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.arg("--no-push")
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.arg("--platform")
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.arg(platform)
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.arg("--image")
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.arg("test.local/explicit-platform:latest")
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.arg(".")
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.current_dir(&example_dir)
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.env("RUST_LOG", "info");
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// When platform is explicitly specified, we should NOT see platform detection
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let output = cmd.output()?;
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let stderr = String::from_utf8_lossy(&output.stderr);
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assert!(output.status.success());
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assert!(!stderr.contains("Detecting available platforms from base image"));
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assert!(stderr.contains(&format!("Building for platform: {}", platform)));
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Ok(())
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}
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#[test]
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fn test_alpine_base_image_many_platforms() -> Result<()> {
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// Create a temporary directory for this test
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let temp_dir = tempfile::tempdir()?;
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let test_project_dir = temp_dir.path().join("test-alpine");
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std::fs::create_dir_all(&test_project_dir)?;
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// Create a simple Cargo.toml with Alpine as base image
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let cargo_toml = r#"[package]
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name = "test-alpine"
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version = "0.1.0"
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edition = "2021"
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[dependencies]
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[package.metadata.krust]
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base-image = "alpine:latest"
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"#;
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std::fs::write(test_project_dir.join("Cargo.toml"), cargo_toml)?;
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// Create src directory and main.rs
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std::fs::create_dir_all(test_project_dir.join("src"))?;
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std::fs::write(
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test_project_dir.join("src/main.rs"),
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r#"fn main() { println!("Hello from Alpine test!"); }"#,
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)?;
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let mut cmd = Command::cargo_bin("krust")?;
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let output = cmd
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.arg("build")
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.arg("--no-push")
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.arg("--image")
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.arg("test.local/alpine-platforms:latest")
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.arg(".")
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.current_dir(&test_project_dir)
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.env("RUST_LOG", "info")
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.output()?;
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let stderr = String::from_utf8_lossy(&output.stderr);
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// Alpine typically supports many platforms, but we might not have all the toolchains
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// So we check that platform detection happened
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assert!(stderr.contains("Detecting available platforms from base image: alpine:latest"));
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assert!(stderr.contains("Found platforms:") || stderr.contains("Detected platforms:"));
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// The build might fail due to missing toolchains for some platforms, which is OK
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// We're mainly testing that platform detection works
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if !output.status.success() {
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// Check if it failed due to missing toolchains (expected)
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assert!(
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stderr.contains("target may not be installed")
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|| stderr.contains("linker")
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|| stderr.contains("cross-compilation"),
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"Build failed for unexpected reason: {}",
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stderr
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);
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}
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Ok(())
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}
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