use crate::commands::command::CheckError;
use eyre::Result;
use lazy_static::lazy_static;
use regex::Regex;
const TIMESTAMP_PATTERN: &str = r"(?P<timestamp>\d{4}-\d{2}-\d{2}T\d{2}:\d{2}:\d{2}\.\d+Z)";
lazy_static! {
static ref TIMESTAMP: Regex = Regex::new(&format!(r"{TIMESTAMP_PATTERN}\s?")).unwrap();
static ref JEST_FAIL_LINE: Regex = Regex::new(&format!(
r"{TIMESTAMP_PATTERN}\s+(?P<fail>FAIL)\s+(?P<path>[a-zA-Z0-9._-]*/[a-zA-Z0-9./_-]*)",
))
.unwrap();
}
#[derive(Debug, Clone, PartialEq)]
pub struct JestPath {
pub path: String,
pub lines: Vec<String>,
}
#[derive(PartialEq, Debug)]
enum State {
LookingForFail,
ParsingFail,
}
#[derive(Debug)]
pub struct JestLogParser {
state: State,
current_fail: Option<CheckError>,
all_fails: Vec<CheckError>,
current_fail_start_col: usize,
current_fail_lines: Vec<String>,
}
impl JestLogParser {
pub fn new() -> Self {
JestLogParser {
state: State::LookingForFail,
current_fail: None,
all_fails: Vec::new(),
current_fail_start_col: 0,
current_fail_lines: Vec::new(),
}
}
fn parse_line(&mut self, raw_line: &str) -> Result<(), eyre::Error> {
let line_no_ansi = String::from_utf8(strip_ansi_escapes::strip(raw_line.as_bytes())?)?;
let line = TIMESTAMP.replace(raw_line, "");
match self.state {
State::LookingForFail => {
if let Some(caps) = JEST_FAIL_LINE.captures(&line_no_ansi) {
self.current_fail_start_col = caps.name("fail").unwrap().start();
let path = caps.name("path").unwrap().as_str().to_string();
self.current_fail = Some(CheckError {
lines: vec![line.to_string()],
path,
});
self.state = State::ParsingFail;
}
}
State::ParsingFail => {
if line_no_ansi.len() > self.current_fail_start_col
&& line_no_ansi.chars().nth(self.current_fail_start_col) != Some(' ')
{
let mut current_fail = std::mem::take(&mut self.current_fail).unwrap();
if let Some(last_non_empty_line) =
current_fail.lines.iter().rposition(|line| !line.is_empty())
{
current_fail.lines.truncate(last_non_empty_line + 1);
}
self.all_fails.push(current_fail);
self.current_fail_lines = Vec::new();
self.state = State::LookingForFail;
} else {
self.current_fail
.as_mut()
.unwrap()
.lines
.push(line.to_string());
}
}
}
Ok(())
}
pub fn parse(log: &str) -> Result<Vec<CheckError>> {
let mut parser = JestLogParser::new();
for line in log.lines() {
parser.parse_line(line)?;
}
Ok(parser.get_output())
}
pub fn get_output(self) -> Vec<CheckError> {
self.all_fails
}
}
#[cfg(test)]
mod tests {
use super::*;
use pretty_assertions::assert_eq;
#[test]
fn test_extract_failing_tests() {
let logs = r#"
2021-05-04T18:24:29.000Z FAIL src/components/MyComponent/MyComponent.test.tsx
2021-05-04T18:24:29.000Z ● Test suite failed to run
2021-05-04T18:24:29.000Z TypeError: Cannot read property 'foo' of undefined
2021-05-04T18:24:29.000Z
2021-05-04T18:24:29.000Z 1 | import React from 'react';
2021-05-04T18:24:29.000Z PASS src/components/MyComponent/MyComponent.test.tsx
2021-05-04T18:24:29.000Z FAIL src/components/MyComponent/MyComponent2.test.tsx
2021-05-04T18:24:29.000Z ● Test suite failed to run
2021-05-04T18:24:29.000Z TypeError: Cannot read property 'foo' of undefined
2021-05-04T18:24:29.000Z
2021-05-04T18:24:29.000Z 1 | import React from 'react';
2021-05-04T18:24:29.000Z PASS src/components/MyComponent/MyComponent2.test.tsx"#;
let failing_tests = JestLogParser::parse(logs).unwrap();
assert_eq!(
failing_tests,
vec![
CheckError {
path: "src/components/MyComponent/MyComponent.test.tsx".to_string(),
lines: vec![
"FAIL src/components/MyComponent/MyComponent.test.tsx".to_string(),
" ● Test suite failed to run".to_string(),
" TypeError: Cannot read property 'foo' of undefined".to_string(),
"".to_string(),
" 1 | import React from 'react';".to_string(),
]
},
CheckError {
path: "src/components/MyComponent/MyComponent2.test.tsx".to_string(),
lines: vec![
"FAIL src/components/MyComponent/MyComponent2.test.tsx".to_string(),
" ● Test suite failed to run".to_string(),
" TypeError: Cannot read property 'foo' of undefined".to_string(),
"".to_string(),
" 1 | import React from 'react';".to_string(),
]
},
]
);
}
#[test]
fn test_extract_failing_tests_2() {
let logs = r#"
2023-06-28T21:11:38.9421220Z > ghtool-test-repo@1.0.0 test
2023-06-28T21:11:38.9428514Z > jest ./src --color --ci --shard=1/2
2023-06-28T21:11:38.9429089Z
2023-06-28T21:11:43.1619050Z FAIL src/test2.test.ts
2023-06-28T21:11:43.1623893Z test2
2023-06-28T21:11:43.1629746Z ✓ succeeds (3 ms)
2023-06-28T21:11:43.1630396Z ✕ fails (5 ms)
2023-06-28T21:11:43.1630949Z
2023-06-28T21:11:43.1631448Z ● test2 › fails
2023-06-28T21:11:43.1631750Z
2023-06-28T21:11:43.1632455Z expect(received).toBe(expected) // Object.is equality
2023-06-28T21:11:43.1633081Z
2023-06-28T21:11:43.1633381Z Expected: false
2023-06-28T21:11:43.1633800Z Received: true
2023-06-28T21:11:43.1634250Z
2023-06-28T21:11:43.1634753Z 5 |
2023-06-28T21:11:43.1635444Z 6 | it("fails", () => {
2023-06-28T21:11:43.1636318Z > 7 | expect(true).toBe(false);
2023-06-28T21:11:43.1637060Z | ^
2023-06-28T21:11:43.1642719Z 8 | });
2023-06-28T21:11:43.1647216Z 9 | });
2023-06-28T21:11:43.1648590Z 10 |
2023-06-28T21:11:43.1649650Z
2023-06-28T21:11:43.1651496Z at Object.<anonymous> (src/test2.test.ts:7:18)
2023-06-28T21:11:43.1652032Z
2023-06-28T21:11:43.1664383Z Test Suites: 1 failed, 1 total
2023-06-28T21:11:43.1665139Z Tests: 1 failed, 1 passed, 2 total
2023-06-28T21:11:43.1665683Z Snapshots: 0 total
2023-06-28T21:11:43.1666152Z Time: 3.464 s
2023-06-28T21:11:43.1666769Z Ran all test suites matching /.\/src/i."#;
let failing_tests = JestLogParser::parse(logs).unwrap();
assert_eq!(
failing_tests,
vec![CheckError {
path: "src/test2.test.ts".to_string(),
lines: vec![
" FAIL src/test2.test.ts".to_string(),
" test2".to_string(),
" ✓ succeeds (3 ms)".to_string(),
" ✕ fails (5 ms)".to_string(),
"".to_string(),
" ● test2 › fails".to_string(),
"".to_string(),
" expect(received).toBe(expected) // Object.is equality".to_string(),
"".to_string(),
" Expected: false".to_string(),
" Received: true".to_string(),
"".to_string(),
" 5 |".to_string(),
" 6 | it(\"fails\", () => {".to_string(),
" > 7 | expect(true).toBe(false);".to_string(),
" | ^".to_string(),
" 8 | });".to_string(),
" 9 | });".to_string(),
" 10 |".to_string(),
"".to_string(),
" at Object.<anonymous> (src/test2.test.ts:7:18)".to_string(),
],
},]
);
}
#[test]
fn test_extract_failing_test_files() {
let logs = r#"
2021-05-04T18:24:29.000Z FAIL src/components/MyComponent/MyComponent.test.tsx
2021-05-04T18:24:29.000Z ● Test suite failed to run
2021-05-04T18:24:29.000Z TypeError: Cannot read property 'foo' of undefined
2021-05-04T18:24:29.000Z
2021-05-04T18:24:29.000Z 1 | import React from 'react';
2021-05-04T18:24:29.000Z PASS src/components/MyComponent/MyComponent2.test.tsx
2021-05-04T18:24:29.000Z FAIL src/components/MyComponent/MyComponent3.test.tsx
2021-05-04T18:24:29.000Z ● Test suite failed to run
2021-05-04T18:24:29.000Z TypeError: Cannot read property 'foo' of undefined
2021-05-04T18:24:29.000Z
2021-05-04T18:24:29.000Z 1 | import React from 'react';
2021-05-04T18:24:29.000Z PASS src/components/MyComponent/MyComponent4.test.tsx"#;
let failing_tests = JestLogParser::parse(logs).unwrap();
let failing_test_files: Vec<String> = failing_tests
.iter()
.map(|jest_path| jest_path.path.clone())
.collect();
assert_eq!(
failing_test_files,
vec![
"src/components/MyComponent/MyComponent.test.tsx".to_string(),
"src/components/MyComponent/MyComponent3.test.tsx".to_string(),
]
);
}
}