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|
use std::{
path::{Path, PathBuf},
process::{Command, Stdio},
};
use anyhow::Context;
use serde_json::{Number, Value};
use swc::SwcComments;
use swc_ecma_ast::EsVersion;
use swc_ecma_parser::{lexer::Lexer, Parser, StringInput, Syntax};
use swc_estree_ast::flavor::Flavor;
use swc_estree_compat::babelify::Babelify;
use testing::{assert_eq, json::diff_json_value, DebugUsingDisplay, NormalizedOutput};
fn assert_flavor(flavor: Flavor, input: &Path, output_json_path: &Path) {
testing::run_test(false, |cm, _handler| {
let fm = cm.load_file(input).unwrap();
let lexer = Lexer::new(
Syntax::Es(Default::default()),
EsVersion::latest(),
StringInput::from(&*fm),
None,
);
let mut parser = Parser::new_from(lexer);
let program = parser.parse_program().unwrap();
let ctx = swc_estree_compat::babelify::Context {
fm: fm.clone(),
cm,
comments: SwcComments::default(),
};
let mut actual = flavor.with(|| {
let program = program.babelify(&ctx).program;
serde_json::to_value(&program).unwrap()
});
let actual_str = serde_json::to_string_pretty(&actual).unwrap();
println!("----- swc output -----\n{actual_str}");
let output = {
let mut cmd = Command::new("node");
cmd.arg("-e")
.arg(include_str!("../scripts/test-acorn.js"))
.arg(&*fm.src)
.stderr(Stdio::inherit());
cmd.output().unwrap()
};
let expected =
String::from_utf8(output.stdout).expect("./acorn.js generated non-utf8 output");
// We don't care about these cases
if expected.trim().is_empty() {
return Ok(());
}
{
let mut expected = serde_json::from_str::<Value>(&expected)
.with_context(|| format!("acorn.js generated invalid json:\n {expected}"))
.unwrap();
println!(
"----- Expected output -----\n{}",
serde_json::to_string_pretty(&expected).unwrap()
);
// We don't try to match fully.
actual["end"] = Value::Null;
expected["end"] = Value::Null;
actual["range"] = Value::Null;
expected["range"] = Value::Null;
diff_json_value(&mut actual, &mut expected, &mut |key, value| {
if let Value::Object(v) = &mut *value {
if let Some("FunctionExpression") = v.get("type").and_then(|v| v.as_str()) {
v["range"] = Value::Null;
v["start"] = Value::Null;
v["end"] = Value::Null;
}
}
match key {
"expression" => {
// Normalize false to null
if let Value::Bool(false) = value {
*value = Value::Null
}
}
"raw" => {
// Remove `'` and `"` from raw strings.
if let Value::String(s) = value {
if (s.starts_with('\'') && s.ends_with('\''))
|| (s.starts_with('"') && s.ends_with('"'))
{
*s = s[1..s.len() - 1].to_string();
} else if s.starts_with('/') {
// We don't need raw value of regex at the moment.
*value = Value::Null;
}
}
}
"value" => {
// Normalize numbers
if let Value::Number(n) = value {
*n = Number::from_f64(n.as_f64().unwrap()).unwrap();
}
}
// We don't try to match fully.
"column" | "line" => {
if let Value::Number(..) = value {
*value = Value::Null;
}
}
_ => {}
}
});
let actual = serde_json::to_string_pretty(&actual).unwrap();
let expected = serde_json::to_string_pretty(&expected).unwrap();
assert_eq!(DebugUsingDisplay(&actual), DebugUsingDisplay(&expected));
}
NormalizedOutput::from(actual_str)
.compare_to_file(output_json_path)
.unwrap();
Ok(())
})
.unwrap();
}
#[testing::fixture("tests/flavor/acorn/**/input.js")]
fn acorn(input: PathBuf) {
let output = input.parent().unwrap().join("output.json");
assert_flavor(
Flavor::Acorn {
extra_comments: false,
},
&input,
&output,
);
}
|
