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|
//! Parser for Composer's `PoolBuilderTest` `.test` fixture format.
//!
//! Mirrors `composer/tests/Composer/Test/DependencyResolver/PoolBuilderTest.php::readTestFile`.
//! Section bodies are stored as raw strings (typically JSON); the runner is
//! responsible for interpreting them.
use anyhow::{Context as _, Result, bail};
use std::fs;
use std::path::Path;
use crate::parser::split_sections;
const VALID_SECTIONS: &[&str] = &[
"TEST",
"ROOT",
"REQUEST",
"FIXED",
"PACKAGE-REPOS",
"EXPECT",
"EXPECT-OPTIMIZED",
];
const REQUIRED_SECTIONS: &[&str] = &["TEST", "REQUEST", "PACKAGE-REPOS", "EXPECT"];
#[derive(Debug, Clone)]
pub struct ParsedPoolBuilderTest {
pub test: String,
pub root: Option<String>,
pub request: String,
pub fixed: Option<String>,
pub package_repos: String,
pub expect: String,
pub expect_optimized: Option<String>,
}
pub fn parse_pool_builder_test_file(path: &Path) -> Result<ParsedPoolBuilderTest> {
let content =
fs::read_to_string(path).with_context(|| format!("failed to read {}", path.display()))?;
parse_pool_builder_test_str(&content)
.with_context(|| format!("failed to parse {}", path.display()))
}
pub fn parse_pool_builder_test_str(content: &str) -> Result<ParsedPoolBuilderTest> {
let mut sections = split_sections(content, VALID_SECTIONS)?;
for required in REQUIRED_SECTIONS {
if !sections.contains_key(*required) {
bail!("missing required section: --{required}--");
}
}
let mut take = |key: &str| sections.shift_remove(key);
let test = take("TEST").unwrap();
let request = take("REQUEST").unwrap();
let package_repos = take("PACKAGE-REPOS").unwrap();
let expect = take("EXPECT").unwrap();
Ok(ParsedPoolBuilderTest {
test,
root: take("ROOT"),
request,
fixed: take("FIXED"),
package_repos,
expect,
expect_optimized: take("EXPECT-OPTIMIZED"),
})
}
#[cfg(test)]
mod tests {
use super::*;
#[test]
fn parses_minimal_required_sections() {
let input = "\
--TEST--
A pool builder test
--REQUEST--
{\"require\": {\"a/a\": \"*\"}}
--PACKAGE-REPOS--
[[{\"name\": \"a/a\", \"version\": \"1.0.0\"}]]
--EXPECT--
[\"a/a-1.0.0.0\"]
";
let t = parse_pool_builder_test_str(input).unwrap();
assert_eq!(t.test, "A pool builder test");
assert_eq!(t.request, "{\"require\": {\"a/a\": \"*\"}}");
assert_eq!(
t.package_repos,
"[[{\"name\": \"a/a\", \"version\": \"1.0.0\"}]]"
);
assert_eq!(t.expect, "[\"a/a-1.0.0.0\"]");
assert!(t.root.is_none());
assert!(t.fixed.is_none());
assert!(t.expect_optimized.is_none());
}
#[test]
fn parses_all_optional_sections() {
let input = "\
--TEST--
desc
--ROOT--
{\"minimum-stability\": \"dev\"}
--REQUEST--
{\"require\": {}}
--FIXED--
[{\"name\": \"x/x\", \"version\": \"1.0.0\", \"id\": 1}]
--PACKAGE-REPOS--
[]
--EXPECT--
[1]
--EXPECT-OPTIMIZED--
[1]
";
let t = parse_pool_builder_test_str(input).unwrap();
assert_eq!(t.test, "desc");
assert_eq!(t.root.as_deref(), Some("{\"minimum-stability\": \"dev\"}"));
assert_eq!(
t.fixed.as_deref(),
Some("[{\"name\": \"x/x\", \"version\": \"1.0.0\", \"id\": 1}]")
);
assert_eq!(t.expect_optimized.as_deref(), Some("[1]"));
}
#[test]
fn rejects_unknown_section() {
let input = "\
--TEST--
x
--MYSTERY--
y
--REQUEST--
{}
--PACKAGE-REPOS--
[]
--EXPECT--
[]
";
let err = parse_pool_builder_test_str(input).unwrap_err();
assert!(err.to_string().contains("unknown section"), "{err}");
}
#[test]
fn rejects_missing_required_section() {
let input = "\
--TEST--
x
--REQUEST--
{}
--EXPECT--
[]
";
let err = parse_pool_builder_test_str(input).unwrap_err();
assert!(err.to_string().contains("PACKAGE-REPOS"), "{err}");
}
#[test]
fn rejects_installer_only_section() {
// `--RUN--` is part of InstallerTest fixtures; PoolBuilder fixtures
// have no such section, so it must be flagged as unknown here.
let input = "\
--TEST--
x
--REQUEST--
{}
--PACKAGE-REPOS--
[]
--RUN--
install
--EXPECT--
[]
";
let err = parse_pool_builder_test_str(input).unwrap_err();
assert!(err.to_string().contains("RUN"), "{err}");
}
}
|
