Files
huskies/server/src/http/workflow/mod.rs
T

906 lines
29 KiB
Rust

//! Workflow helpers — shared story/bug file operations used by HTTP and MCP handlers.
mod bug_ops;
mod story_ops;
mod test_results;
pub use bug_ops::{
create_bug_file, create_refactor_file, create_spike_file, list_bug_files, list_refactor_files,
};
pub use story_ops::{
add_criterion_to_file, check_criterion_in_file, create_story_file, edit_criterion_in_file,
remove_criterion_from_file, update_story_in_file,
};
pub use test_results::{
read_test_results_from_story_file, write_coverage_baseline_to_story_file,
write_test_results_to_story_file,
};
use crate::agents::AgentStatus;
use crate::http::context::AppContext;
use crate::io::story_metadata::parse_front_matter;
use serde::Serialize;
use std::collections::HashMap;
use std::path::Path;
/// Agent assignment embedded in a pipeline stage item.
#[derive(Clone, Debug, Serialize)]
pub struct AgentAssignment {
pub agent_name: String,
pub model: Option<String>,
pub status: String,
}
#[derive(Clone, Debug, Serialize)]
pub struct UpcomingStory {
pub story_id: String,
pub name: Option<String>,
pub error: Option<String>,
/// Merge failure reason persisted to front matter by the mergemaster agent.
pub merge_failure: Option<String>,
/// Active agent working on this item, if any.
pub agent: Option<AgentAssignment>,
/// True when the item is held in QA for human review.
#[serde(skip_serializing_if = "Option::is_none")]
pub review_hold: Option<bool>,
/// QA mode for this item: "human", "server", or "agent".
#[serde(skip_serializing_if = "Option::is_none")]
pub qa: Option<String>,
/// Number of retries at the current pipeline stage.
#[serde(skip_serializing_if = "Option::is_none")]
pub retry_count: Option<u32>,
/// True when the story has exceeded its retry limit and will not be auto-assigned.
#[serde(skip_serializing_if = "Option::is_none")]
pub blocked: Option<bool>,
/// Story numbers this story depends on.
#[serde(skip_serializing_if = "Option::is_none")]
pub depends_on: Option<Vec<u32>>,
}
pub struct StoryValidationResult {
pub story_id: String,
pub valid: bool,
pub error: Option<String>,
}
/// Full pipeline state across all stages.
#[derive(Clone, Debug, Serialize)]
pub struct PipelineState {
pub backlog: Vec<UpcomingStory>,
pub current: Vec<UpcomingStory>,
pub qa: Vec<UpcomingStory>,
pub merge: Vec<UpcomingStory>,
pub done: Vec<UpcomingStory>,
}
/// Load the full pipeline state (all 5 active stages).
///
/// Reads from the CRDT document and enriches with content from the
/// in-memory content store. Agent assignments are overlaid from the
/// in-memory agent pool.
pub fn load_pipeline_state(ctx: &AppContext) -> Result<PipelineState, String> {
let agent_map = build_active_agent_map(ctx);
use crate::pipeline_state::Stage;
let typed_items = crate::pipeline_state::read_all_typed();
let mut state = PipelineState {
backlog: Vec::new(),
current: Vec::new(),
qa: Vec::new(),
merge: Vec::new(),
done: Vec::new(),
};
for item in typed_items {
let sid = &item.story_id.0;
let agent = agent_map.get(sid).cloned();
// Enrich with content-derived metadata (merge_failure, review_hold, qa).
let (merge_failure, review_hold, qa) = crate::db::read_content(sid)
.and_then(|c| parse_front_matter(&c).ok())
.map(|meta| {
(
meta.merge_failure,
meta.review_hold,
meta.qa.map(|m| m.as_str().to_string()),
)
})
.unwrap_or((None, None, None));
let story = UpcomingStory {
story_id: sid.clone(),
name: if item.name.is_empty() {
None
} else {
Some(item.name.clone())
},
error: None,
merge_failure,
agent,
review_hold,
qa,
retry_count: if item.retry_count > 0 {
Some(item.retry_count)
} else {
None
},
blocked: if item.stage.is_blocked() {
Some(true)
} else {
None
},
depends_on: if item.depends_on.is_empty() {
None
} else {
Some(
item.depends_on
.iter()
.filter_map(|d| d.0.split('_').next()?.parse::<u32>().ok())
.collect(),
)
},
};
match &item.stage {
Stage::Backlog => state.backlog.push(story),
Stage::Coding => state.current.push(story),
Stage::Qa => state.qa.push(story),
Stage::Merge { .. } => state.merge.push(story),
Stage::Done { .. } => state.done.push(story),
Stage::Archived { .. } => {} // skip archived
}
}
// Sort each stage for deterministic output.
state.backlog.sort_by(|a, b| a.story_id.cmp(&b.story_id));
state.current.sort_by(|a, b| a.story_id.cmp(&b.story_id));
state.qa.sort_by(|a, b| a.story_id.cmp(&b.story_id));
state.merge.sort_by(|a, b| a.story_id.cmp(&b.story_id));
state.done.sort_by(|a, b| a.story_id.cmp(&b.story_id));
Ok(state)
}
/// Build a map from story_id → AgentAssignment for all pending/running agents.
fn build_active_agent_map(ctx: &AppContext) -> HashMap<String, AgentAssignment> {
let agents = match ctx.services.agents.list_agents() {
Ok(a) => a,
Err(_) => return HashMap::new(),
};
let config_opt = ctx
.state
.get_project_root()
.ok()
.and_then(|root| crate::config::ProjectConfig::load(&root).ok());
let mut map = HashMap::new();
for agent in agents {
if !matches!(agent.status, AgentStatus::Pending | AgentStatus::Running) {
continue;
}
let model = config_opt
.as_ref()
.and_then(|cfg| cfg.find_agent(&agent.agent_name))
.and_then(|ac| ac.model.clone());
map.insert(
agent.story_id.clone(),
AgentAssignment {
agent_name: agent.agent_name,
model,
status: agent.status.to_string(),
},
);
}
map
}
pub fn load_upcoming_stories(_ctx: &AppContext) -> Result<Vec<UpcomingStory>, String> {
use crate::pipeline_state::Stage;
let typed_items = crate::pipeline_state::read_all_typed();
let mut stories: Vec<UpcomingStory> = typed_items
.into_iter()
.filter(|item| matches!(item.stage, Stage::Backlog))
.map(|item| UpcomingStory {
story_id: item.story_id.0,
name: if item.name.is_empty() {
None
} else {
Some(item.name)
},
error: None,
merge_failure: None,
agent: None,
review_hold: None,
qa: None,
retry_count: if item.retry_count > 0 {
Some(item.retry_count)
} else {
None
},
blocked: if item.stage.is_blocked() {
Some(true)
} else {
None
},
depends_on: if item.depends_on.is_empty() {
None
} else {
Some(
item.depends_on
.iter()
.filter_map(|d| d.0.split('_').next()?.parse::<u32>().ok())
.collect(),
)
},
})
.collect();
stories.sort_by(|a, b| a.story_id.cmp(&b.story_id));
Ok(stories)
}
pub fn validate_story_dirs(_root: &std::path::Path) -> Result<Vec<StoryValidationResult>, String> {
use crate::pipeline_state::Stage;
let mut results = Vec::new();
let typed_items = crate::pipeline_state::read_all_typed();
for item in typed_items {
// Only validate backlog and current items (matching the old behaviour).
if !matches!(item.stage, Stage::Backlog | Stage::Coding) {
continue;
}
let story_id = item.story_id.0.clone();
match crate::db::read_content(&story_id) {
Some(contents) => match parse_front_matter(&contents) {
Ok(meta) => {
let mut errors = Vec::new();
if meta.name.is_none() {
errors.push("Missing 'name' field".to_string());
}
if errors.is_empty() {
results.push(StoryValidationResult {
story_id,
valid: true,
error: None,
});
} else {
results.push(StoryValidationResult {
story_id,
valid: false,
error: Some(errors.join("; ")),
});
}
}
Err(e) => results.push(StoryValidationResult {
story_id,
valid: false,
error: Some(e.to_string()),
}),
},
None => results.push(StoryValidationResult {
story_id,
valid: false,
error: Some("No content found in content store".to_string()),
}),
}
}
results.sort_by(|a, b| a.story_id.cmp(&b.story_id));
Ok(results)
}
// ── Shared utilities used by submodules ──────────────────────────
/// Read story content from the database content store.
///
/// Returns the story content or an error if not found.
pub(super) fn read_story_content(_project_root: &Path, story_id: &str) -> Result<String, String> {
crate::db::read_content(story_id)
.ok_or_else(|| format!("Story '{story_id}' not found in any pipeline stage."))
}
/// Write story content to the DB content store and CRDT.
pub(super) fn write_story_content(
_project_root: &Path,
story_id: &str,
stage: &str,
content: &str,
) {
crate::db::write_item_with_content(story_id, stage, content);
}
/// Determine what stage a story is in (from CRDT).
pub(super) fn story_stage(story_id: &str) -> Option<String> {
crate::pipeline_state::read_typed(story_id)
.ok()
.flatten()
.map(|item| item.stage.dir_name().to_string())
}
/// Replace the content of a named `## Section` in a story file.
///
/// Finds the first occurrence of `## {section_name}` and replaces everything
/// until the next `##` heading (or end of file) with the provided text.
/// Returns an error if the section is not found.
pub(super) fn replace_section_content(
content: &str,
section_name: &str,
new_text: &str,
) -> Result<String, String> {
let lines: Vec<&str> = content.lines().collect();
let heading = format!("## {section_name}");
let mut section_start: Option<usize> = None;
let mut section_end: Option<usize> = None;
for (i, line) in lines.iter().enumerate() {
let trimmed = line.trim();
if trimmed == heading {
section_start = Some(i);
continue;
}
if section_start.is_some() && trimmed.starts_with("## ") {
section_end = Some(i);
break;
}
}
let section_start =
section_start.ok_or_else(|| format!("Section '{heading}' not found in story file."))?;
let mut new_lines: Vec<String> = Vec::new();
// Keep everything up to and including the section heading.
for line in lines.iter().take(section_start + 1) {
new_lines.push(line.to_string());
}
// Blank line, new content, blank line.
new_lines.push(String::new());
new_lines.push(new_text.to_string());
new_lines.push(String::new());
// Resume from the next section heading (or EOF).
let resume_from = section_end.unwrap_or(lines.len());
for line in lines.iter().skip(resume_from) {
new_lines.push(line.to_string());
}
let mut new_str = new_lines.join("\n");
if content.ends_with('\n') {
new_str.push('\n');
}
Ok(new_str)
}
/// Insert a new `## {section_name}` section into `content`.
///
/// The new section is placed immediately before the first occurrence of
/// `## {before_section}`. If `before_section` is `None` or not found in the
/// document, the section is appended at the end.
pub(super) fn create_section_content(
content: &str,
section_name: &str,
new_text: &str,
before_section: Option<&str>,
) -> String {
let lines: Vec<&str> = content.lines().collect();
let insert_at = before_section
.and_then(|before| {
let heading = format!("## {before}");
lines.iter().position(|l| l.trim() == heading)
})
.unwrap_or(lines.len());
let mut new_lines: Vec<String> = Vec::new();
for line in lines.iter().take(insert_at) {
new_lines.push(line.to_string());
}
// Ensure a blank line before the new heading.
if new_lines.last().map(|l| !l.is_empty()).unwrap_or(false) {
new_lines.push(String::new());
}
new_lines.push(format!("## {section_name}"));
new_lines.push(String::new());
new_lines.push(new_text.to_string());
new_lines.push(String::new());
for line in lines.iter().skip(insert_at) {
new_lines.push(line.to_string());
}
let mut new_str = new_lines.join("\n");
if content.ends_with('\n') {
new_str.push('\n');
}
new_str
}
/// Replace the `## Test Results` section in `contents` with `new_section`,
/// or append it if not present.
pub(super) fn replace_or_append_section(contents: &str, header: &str, new_section: &str) -> String {
let lines: Vec<&str> = contents.lines().collect();
let header_trimmed = header.trim();
// Find the start of the existing section
let section_start = lines.iter().position(|l| l.trim() == header_trimmed);
if let Some(start) = section_start {
// Find the next `##` heading after the section start (the end of this section)
let section_end = lines[start + 1..]
.iter()
.position(|l| {
let t = l.trim();
t.starts_with("## ") && t != header_trimmed
})
.map(|i| start + 1 + i)
.unwrap_or(lines.len());
let mut result = lines[..start].join("\n");
if !result.is_empty() {
result.push('\n');
}
result.push_str(new_section);
if section_end < lines.len() {
result.push('\n');
result.push_str(&lines[section_end..].join("\n"));
}
if contents.ends_with('\n') {
result.push('\n');
}
result
} else {
// Append at the end
let mut result = contents.trim_end_matches('\n').to_string();
result.push_str("\n\n");
result.push_str(new_section);
if !result.ends_with('\n') {
result.push('\n');
}
result
}
}
pub(super) fn slugify_name(name: &str) -> String {
let slug: String = name
.chars()
.map(|c| {
if c.is_ascii_alphanumeric() {
c.to_ascii_lowercase()
} else {
'_'
}
})
.collect();
// Collapse consecutive underscores and trim edges
let mut result = String::new();
let mut prev_underscore = true; // start true to trim leading _
for ch in slug.chars() {
if ch == '_' {
if !prev_underscore {
result.push('_');
}
prev_underscore = true;
} else {
result.push(ch);
prev_underscore = false;
}
}
// Trim trailing underscore
if result.ends_with('_') {
result.pop();
}
result
}
/// Get the next available item number from the database/CRDT.
pub(super) fn next_item_number(_root: &std::path::Path) -> Result<u32, String> {
Ok(crate::db::next_item_number())
}
#[cfg(test)]
mod tests {
use super::*;
#[test]
fn load_pipeline_state_loads_all_stages() {
let tmp = tempfile::tempdir().unwrap();
let root = tmp.path().to_path_buf();
crate::db::ensure_content_store();
for (stage, id) in &[
("1_backlog", "9810_story_upcoming"),
("2_current", "9820_story_current"),
("3_qa", "9830_story_qa"),
("4_merge", "9840_story_merge"),
("5_done", "9850_story_done"),
] {
crate::db::write_item_with_content(id, stage, &format!("---\nname: {id}\n---\n"));
}
let ctx = crate::http::context::AppContext::new_test(root);
let state = load_pipeline_state(&ctx).unwrap();
assert!(
state
.backlog
.iter()
.any(|s| s.story_id == "9810_story_upcoming")
);
assert!(
state
.current
.iter()
.any(|s| s.story_id == "9820_story_current")
);
assert!(state.qa.iter().any(|s| s.story_id == "9830_story_qa"));
assert!(state.merge.iter().any(|s| s.story_id == "9840_story_merge"));
assert!(state.done.iter().any(|s| s.story_id == "9850_story_done"));
}
#[test]
fn load_upcoming_returns_empty_when_no_dir() {
// With CRDT there is no filesystem dependency. The function should
// succeed even without a .huskies directory. Other tests may have
// inserted items into the global CRDT, so we only assert no error.
let tmp = tempfile::tempdir().unwrap();
let root = tmp.path().to_path_buf();
let ctx = crate::http::context::AppContext::new_test(root);
let _result = load_upcoming_stories(&ctx).unwrap();
}
#[test]
fn pipeline_state_includes_agent_for_running_story() {
let tmp = tempfile::tempdir().unwrap();
let root = tmp.path().to_path_buf();
crate::db::ensure_content_store();
crate::db::write_item_with_content(
"9860_story_test",
"2_current",
"---\nname: Test Story\n---\n# Story\n",
);
let ctx = crate::http::context::AppContext::new_test(root);
ctx.services.agents.inject_test_agent(
"9860_story_test",
"coder-1",
crate::agents::AgentStatus::Running,
);
let state = load_pipeline_state(&ctx).unwrap();
let item = state
.current
.iter()
.find(|s| s.story_id == "9860_story_test")
.unwrap();
assert!(
item.agent.is_some(),
"running agent should appear on work item"
);
let agent = item.agent.as_ref().unwrap();
assert_eq!(agent.agent_name, "coder-1");
assert_eq!(agent.status, "running");
}
#[test]
fn pipeline_state_no_agent_for_completed_story() {
let tmp = tempfile::tempdir().unwrap();
let root = tmp.path().to_path_buf();
crate::db::ensure_content_store();
crate::db::write_item_with_content(
"9861_story_done",
"2_current",
"---\nname: Done Story\n---\n# Story\n",
);
let ctx = crate::http::context::AppContext::new_test(root);
ctx.services.agents.inject_test_agent(
"9861_story_done",
"coder-1",
crate::agents::AgentStatus::Completed,
);
let state = load_pipeline_state(&ctx).unwrap();
let item = state
.current
.iter()
.find(|s| s.story_id == "9861_story_done")
.unwrap();
assert!(
item.agent.is_none(),
"completed agent should not appear on work item"
);
}
#[test]
fn pipeline_state_pending_agent_included() {
let tmp = tempfile::tempdir().unwrap();
let root = tmp.path().to_path_buf();
crate::db::ensure_content_store();
crate::db::write_item_with_content(
"9862_story_pending",
"2_current",
"---\nname: Pending Story\n---\n# Story\n",
);
let ctx = crate::http::context::AppContext::new_test(root);
ctx.services.agents.inject_test_agent(
"9862_story_pending",
"coder-1",
crate::agents::AgentStatus::Pending,
);
let state = load_pipeline_state(&ctx).unwrap();
let item = state
.current
.iter()
.find(|s| s.story_id == "9862_story_pending")
.unwrap();
assert!(
item.agent.is_some(),
"pending agent should appear on work item"
);
assert_eq!(item.agent.as_ref().unwrap().status, "pending");
}
#[test]
fn pipeline_state_includes_depends_on() {
crate::db::ensure_content_store();
crate::db::write_item_with_content(
"9863_story_dependent",
"1_backlog",
"---\nname: Dependent Story\ndepends_on: [10, 11]\n---\n",
);
crate::db::write_item_with_content(
"9864_story_independent",
"1_backlog",
"---\nname: Independent Story\n---\n",
);
let tmp = tempfile::tempdir().unwrap();
let ctx = crate::http::context::AppContext::new_test(tmp.path().to_path_buf());
let state = load_pipeline_state(&ctx).unwrap();
let dependent = state
.backlog
.iter()
.find(|s| s.story_id == "9863_story_dependent")
.unwrap();
assert_eq!(dependent.depends_on, Some(vec![10, 11]));
let independent = state
.backlog
.iter()
.find(|s| s.story_id == "9864_story_independent")
.unwrap();
assert_eq!(independent.depends_on, None);
}
#[test]
fn load_upcoming_parses_metadata() {
crate::db::ensure_content_store();
crate::db::write_item_with_content(
"9870_story_view_upcoming",
"1_backlog",
"---\nname: View Upcoming\n---\n# Story\n",
);
crate::db::write_item_with_content(
"9871_story_worktree",
"1_backlog",
"---\nname: Worktree Orchestration\n---\n# Story\n",
);
let tmp = tempfile::tempdir().unwrap();
let ctx = crate::http::context::AppContext::new_test(tmp.path().to_path_buf());
let stories = load_upcoming_stories(&ctx).unwrap();
let s1 = stories
.iter()
.find(|s| s.story_id == "9870_story_view_upcoming")
.unwrap();
assert_eq!(s1.name.as_deref(), Some("View Upcoming"));
let s2 = stories
.iter()
.find(|s| s.story_id == "9871_story_worktree")
.unwrap();
assert_eq!(s2.name.as_deref(), Some("Worktree Orchestration"));
}
#[test]
fn load_upcoming_skips_non_md_files() {
// Non-.md files are a filesystem concept. With CRDT, only real items
// appear. Just verify the CRDT item is returned.
crate::db::ensure_content_store();
crate::db::write_item_with_content(
"9872_story_example",
"1_backlog",
"---\nname: A Story\n---\n",
);
let tmp = tempfile::tempdir().unwrap();
let ctx = crate::http::context::AppContext::new_test(tmp.path().to_path_buf());
let stories = load_upcoming_stories(&ctx).unwrap();
assert!(stories.iter().any(|s| s.story_id == "9872_story_example"));
}
#[test]
fn validate_story_dirs_valid_files() {
crate::db::ensure_content_store();
crate::db::write_item_with_content(
"9873_story_todos",
"2_current",
"---\nname: Show TODOs\n---\n# Story\n",
);
crate::db::write_item_with_content(
"9874_story_front_matter",
"1_backlog",
"---\nname: Enforce Front Matter\n---\n# Story\n",
);
let tmp = tempfile::tempdir().unwrap();
let results = validate_story_dirs(tmp.path()).unwrap();
let r1 = results
.iter()
.find(|r| r.story_id == "9873_story_todos")
.unwrap();
assert!(r1.valid);
let r2 = results
.iter()
.find(|r| r.story_id == "9874_story_front_matter")
.unwrap();
assert!(r2.valid);
}
#[test]
fn validate_story_dirs_missing_front_matter() {
crate::db::ensure_content_store();
crate::db::write_item_with_content("9875_story_no_fm", "2_current", "# No front matter\n");
let tmp = tempfile::tempdir().unwrap();
let results = validate_story_dirs(tmp.path()).unwrap();
let r = results
.iter()
.find(|r| r.story_id == "9875_story_no_fm")
.unwrap();
assert!(!r.valid);
assert_eq!(r.error.as_deref(), Some("Missing front matter"));
}
#[test]
fn validate_story_dirs_missing_required_fields() {
crate::db::ensure_content_store();
crate::db::write_item_with_content(
"9876_story_no_name",
"2_current",
"---\n---\n# Story\n",
);
let tmp = tempfile::tempdir().unwrap();
let results = validate_story_dirs(tmp.path()).unwrap();
let r = results
.iter()
.find(|r| r.story_id == "9876_story_no_name")
.unwrap();
assert!(!r.valid);
let err = r.error.as_deref().unwrap();
assert!(err.contains("Missing 'name' field"));
}
#[test]
fn validate_story_dirs_empty_when_no_dirs() {
// With CRDT there's always global state; this test just ensures no panic.
let tmp = tempfile::tempdir().unwrap();
let _results = validate_story_dirs(tmp.path());
}
// --- slugify_name tests ---
#[test]
fn slugify_simple_name() {
assert_eq!(
slugify_name("Enforce Front Matter on All Story Files"),
"enforce_front_matter_on_all_story_files"
);
}
#[test]
fn slugify_with_special_chars() {
assert_eq!(slugify_name("Hello, World! (v2)"), "hello_world_v2");
}
#[test]
fn slugify_leading_trailing_underscores() {
assert_eq!(slugify_name(" spaces "), "spaces");
}
#[test]
fn slugify_consecutive_separators() {
assert_eq!(slugify_name("a--b__c d"), "a_b_c_d");
}
#[test]
fn slugify_empty_after_strip() {
assert_eq!(slugify_name("!!!"), "");
}
#[test]
fn slugify_already_snake_case() {
assert_eq!(slugify_name("my_story_name"), "my_story_name");
}
// --- next_item_number tests ---
#[test]
fn next_item_number_returns_at_least_1() {
let tmp = tempfile::tempdir().unwrap();
// May be higher due to shared global CRDT state in tests.
assert!(next_item_number(tmp.path()).unwrap() >= 1);
}
#[test]
fn next_item_number_increments_beyond_existing() {
crate::db::ensure_content_store();
crate::db::write_item_with_content("9877_story_foo", "1_backlog", "---\nname: Foo\n---\n");
let tmp = tempfile::tempdir().unwrap();
assert!(next_item_number(tmp.path()).unwrap() >= 9878);
}
// --- read_story_content tests ---
#[test]
fn read_story_content_from_content_store() {
crate::db::ensure_content_store();
let content = "---\nname: Test\n---\n# Story\n";
crate::db::write_content("9878_story_read_test", content);
let tmp = tempfile::tempdir().unwrap();
let result = read_story_content(tmp.path(), "9878_story_read_test").unwrap();
assert_eq!(result, content);
}
#[test]
fn read_story_content_not_found_returns_error() {
let tmp = tempfile::tempdir().unwrap();
let result = read_story_content(tmp.path(), "99999_missing");
assert!(result.is_err());
assert!(result.unwrap_err().contains("not found"));
}
// --- replace_or_append_section tests ---
#[test]
fn replace_or_append_section_appends_when_absent() {
let contents = "---\nname: T\n---\n# Story\n";
let new =
replace_or_append_section(contents, "## Test Results", "## Test Results\n\nfoo\n");
assert!(new.contains("## Test Results"));
assert!(new.contains("foo"));
assert!(new.contains("# Story"));
}
#[test]
fn replace_or_append_section_replaces_existing() {
let contents = "# Story\n\n## Test Results\n\nold content\n\n## Other\n\nother content\n";
let new = replace_or_append_section(
contents,
"## Test Results",
"## Test Results\n\nnew content\n",
);
assert!(new.contains("new content"));
assert!(!new.contains("old content"));
assert!(new.contains("## Other"));
}
}