#[cfg(test)]
pub mod tests {
use std::process::Command;
#[test]
fn test_basic_streams_output() {
let output = Command::new("cargo")
.args([
"run",
"-p",
"test-streams",
"--example",
"basic_streams",
"--features",
"hotpath",
])
.output()
.expect("Failed to execute command");
assert!(
output.status.success(),
"Command failed with status: {}",
output.status
);
let stdout = String::from_utf8_lossy(&output.stdout);
let all_expected = [
"number-stream",
"text-stream",
"repeat-stream",
"Stream example completed!",
"Stream yield statistics",
"5", "4", "3", "Yielded",
];
for expected in all_expected {
assert!(
stdout.contains(expected),
"Expected:\n{expected}\n\nGot:\n{stdout}",
);
}
}
#[test]
fn test_streams_closed_state() {
let output = Command::new("cargo")
.args([
"run",
"-p",
"test-streams",
"--example",
"basic_streams",
"--features",
"hotpath",
])
.output()
.expect("Failed to execute command");
assert!(
output.status.success(),
"Command failed with status: {}",
output.status
);
let stdout = String::from_utf8_lossy(&output.stdout);
let closed_count = stdout.matches("| closed").count();
assert!(
closed_count >= 3,
"Expected at least 3 'closed' states for streams, found {}.\nOutput:\n{}",
closed_count,
stdout
);
}
#[test]
fn test_data_endpoints() {
use hotpath::json::{DataFlowType, JsonDataFlowList};
use std::{thread::sleep, time::Duration};
let mut child = Command::new("cargo")
.args([
"run",
"-p",
"test-streams",
"--example",
"basic_streams",
"--features",
"hotpath",
])
.env("HOTPATH_METRICS_PORT", "6774")
.env("TEST_SLEEP_SECONDS", "10")
.spawn()
.expect("Failed to spawn command");
let mut json_text = String::new();
let mut last_error = None;
let all_expected = ["basic_streams.rs", "number-stream", "text-stream"];
for _attempt in 0..12 {
sleep(Duration::from_millis(750));
match ureq::get("http://localhost:6774/data_flow").call() {
Ok(mut response) => {
json_text = response
.body_mut()
.read_to_string()
.expect("Failed to read response body");
last_error = None;
if all_expected.iter().all(|e| json_text.contains(e)) {
break;
}
}
Err(e) => {
last_error = Some(format!("Request error: {}", e));
}
}
}
if let Some(error) = last_error {
let _ = child.kill();
panic!("Failed after 12 retries: {}", error);
}
for expected in all_expected {
assert!(
json_text.contains(expected),
"Expected:\n{expected}\n\nGot:\n{json_text}",
);
}
let data_flow: JsonDataFlowList =
serde_json::from_str(&json_text).expect("Failed to parse data_flow JSON");
let first_stream = data_flow
.entries
.iter()
.find(|e| e.data_flow_type == DataFlowType::Stream);
if let Some(stream) = first_stream {
let logs_url = format!("http://localhost:6774/data_flow/stream/{}/logs", stream.id);
let response = ureq::get(&logs_url)
.call()
.expect("Failed to call /data_flow/stream/:id/logs endpoint");
assert_eq!(
response.status(),
200,
"Expected status 200 for /data_flow/stream/:id/logs endpoint"
);
}
let _ = child.kill();
let _ = child.wait();
}
#[test]
fn test_guard_timeout_output() {
let output = Command::new("cargo")
.args([
"run",
"-p",
"test-streams",
"--example",
"guard_timeout_streams",
"--features",
"hotpath",
])
.output()
.expect("Failed to execute command");
assert!(
output.status.success(),
"Process did not exit successfully.\n\nstderr:\n{}",
String::from_utf8_lossy(&output.stderr)
);
let stdout = String::from_utf8_lossy(&output.stdout);
let expected_content = ["[hotpath]", "| streams", "timeout-stream"];
for expected in expected_content {
assert!(
stdout.contains(expected),
"Expected:\n{expected}\n\nGot:\n{stdout}",
);
}
}
#[test]
fn test_format_none_suppresses_output() {
let output = Command::new("cargo")
.args([
"run",
"-p",
"test-streams",
"--example",
"basic_streams",
"--features",
"hotpath",
])
.env("HOTPATH_OUTPUT_FORMAT", "none")
.output()
.expect("Failed to execute command");
assert!(
output.status.success(),
"Process did not exit successfully.\n\nstderr:\n{}",
String::from_utf8_lossy(&output.stderr)
);
let stdout = String::from_utf8_lossy(&output.stdout);
assert!(
stdout.contains("Stream example completed!"),
"Application output should still be present.\nGot:\n{stdout}"
);
let not_expected = [
"[hotpath]",
"number-stream",
"text-stream",
"Stream yield statistics",
];
for not_exp in not_expected {
assert!(
!stdout.contains(not_exp),
"Stream output should be suppressed with HOTPATH_OUTPUT_FORMAT=none.\nFound: {not_exp}\nGot:\n{stdout}"
);
}
}
#[test]
fn test_streams_file_output() {
use std::fs;
use std::path::Path;
let output_path = "tmp/streams_output_test.json";
fs::create_dir_all("tmp").ok();
if Path::new(output_path).exists() {
fs::remove_file(output_path).ok();
}
let output = Command::new("cargo")
.args([
"run",
"-p",
"test-streams",
"--example",
"streams_file_output",
"--features",
"hotpath",
])
.output()
.expect("Failed to execute command");
assert!(
output.status.success(),
"Process did not exit successfully.\n\nstderr:\n{}",
String::from_utf8_lossy(&output.stderr)
);
assert!(
Path::new(output_path).exists(),
"Output file was not created at {}",
output_path
);
let file_content = fs::read_to_string(output_path).expect("Failed to read output file");
let expected_content = ["number-stream", "\"items_yielded\""];
for expected in expected_content {
assert!(
file_content.contains(expected),
"Expected:\n{expected}\n\nGot:\n{file_content}",
);
}
fs::remove_file(output_path).ok();
}
}