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|
#![deny(warnings)]
use std::{
fs::read_to_string,
path::{Path, PathBuf},
};
use swc_html_ast::{Document, DocumentFragment, DocumentMode, Element, Namespace};
use swc_html_codegen::{
writer::basic::{BasicHtmlWriter, BasicHtmlWriterConfig},
CodeGenerator, CodegenConfig, Emit,
};
use swc_html_minifier::{minify_document, minify_document_fragment, option::MinifyOptions};
use swc_html_parser::{parse_file_as_document, parse_file_as_document_fragment};
use testing::NormalizedOutput;
fn find_config(dir: &Path) -> Option<String> {
let config = dir.join("config.json");
if config.exists() {
let config = read_to_string(&config).expect("failed to read config.json");
return Some(config);
}
None
}
#[testing::fixture("tests/fixture/**/input.html")]
fn test_minify_document(input: PathBuf) {
let dir = input.parent().unwrap();
let output = dir.join(format!(
"output.min.{}",
input.extension().unwrap().to_string_lossy()
));
testing::run_test(false, |cm, handler| {
let fm = cm.load_file(&input).unwrap();
let mut errors = Vec::new();
let result: Result<Document, _> =
parse_file_as_document(&fm, Default::default(), &mut errors);
for err in errors {
err.to_diagnostics(handler).emit();
}
if handler.has_errors() {
return Err(());
}
let mut document = result.unwrap();
let config = match find_config(dir) {
Some(config) => serde_json::from_str(&config).unwrap(),
None => MinifyOptions::default(),
};
// Apply transforms
minify_document(&mut document, &config);
let mut html_str = String::new();
{
let wr = BasicHtmlWriter::new(&mut html_str, None, BasicHtmlWriterConfig::default());
let mut gen = CodeGenerator::new(
wr,
CodegenConfig {
scripting_enabled: false,
minify: true,
..Default::default()
},
);
gen.emit(&document).unwrap();
}
NormalizedOutput::new_raw(html_str)
.compare_to_file(&output)
.unwrap();
Ok(())
})
.unwrap();
}
#[testing::fixture("tests/document_fragment/**/input.html")]
fn test_minify_document_fragment(input: PathBuf) {
let dir = input.parent().unwrap();
let output = dir.join(format!(
"output.min.{}",
input.extension().unwrap().to_string_lossy()
));
testing::run_test(false, |cm, handler| {
let fm = cm.load_file(&input).unwrap();
let parent = input.parent().unwrap();
let parent_str = parent
.components()
.next_back()
.unwrap()
.as_os_str()
.to_string_lossy();
let mut context_element_namespace = Namespace::HTML;
let mut context_element_tag_name = "template";
let context_element = parent_str
.split('.')
.next_back()
.expect("failed to get context element from filename");
if context_element.contains('_') {
let mut splited = context_element.split('_');
if let Some(namespace) = splited.next() {
context_element_namespace = match namespace {
"math" => Namespace::MATHML,
"svg" => Namespace::SVG,
_ => Namespace::HTML,
};
}
if let Some(tag_name) = splited.next() {
context_element_tag_name = tag_name;
}
} else {
context_element_tag_name = context_element;
}
let context_element = Element {
span: Default::default(),
namespace: context_element_namespace,
tag_name: context_element_tag_name.into(),
attributes: Vec::new(),
is_self_closing: false,
children: Vec::new(),
content: None,
};
let mut errors = Vec::new();
let result: Result<DocumentFragment, _> = parse_file_as_document_fragment(
&fm,
&context_element,
DocumentMode::NoQuirks,
None,
Default::default(),
&mut errors,
);
for err in errors {
err.to_diagnostics(handler).emit();
}
if handler.has_errors() {
return Err(());
}
let mut document_fragment = result.unwrap();
let config = match find_config(dir) {
Some(config) => serde_json::from_str(&config).unwrap(),
None => MinifyOptions::default(),
};
// Apply transforms
minify_document_fragment(&mut document_fragment, &context_element, &config);
let mut html_str = String::new();
{
let wr = BasicHtmlWriter::new(&mut html_str, None, BasicHtmlWriterConfig::default());
let mut gen = CodeGenerator::new(
wr,
CodegenConfig {
scripting_enabled: false,
minify: true,
..Default::default()
},
);
gen.emit(&document_fragment).unwrap();
}
NormalizedOutput::new_raw(html_str)
.compare_to_file(&output)
.unwrap();
Ok(())
})
.unwrap();
}
#[testing::fixture("tests/recovery/**/input.html")]
fn test_minify_recovery(input: PathBuf) {
let dir = input.parent().unwrap();
let output = dir.join(format!(
"output.min.{}",
input.extension().unwrap().to_string_lossy()
));
let mut recovered = false;
testing::run_test(false, |cm, handler| {
let fm = cm.load_file(&input).unwrap();
let mut errors = Vec::new();
let result: Result<Document, _> =
parse_file_as_document(&fm, Default::default(), &mut errors);
for err in errors {
err.to_diagnostics(handler).emit();
}
if handler.has_errors() {
recovered = true;
}
let mut document = result.unwrap();
let config = match find_config(dir) {
Some(config) => serde_json::from_str(&config).unwrap(),
None => MinifyOptions::default(),
};
// Apply transforms
minify_document(&mut document, &config);
let mut html_str = String::new();
{
let wr = BasicHtmlWriter::new(&mut html_str, None, BasicHtmlWriterConfig::default());
let mut gen = CodeGenerator::new(
wr,
CodegenConfig {
scripting_enabled: false,
minify: true,
..Default::default()
},
);
gen.emit(&document).unwrap();
}
NormalizedOutput::new_raw(html_str)
.compare_to_file(&output)
.unwrap();
Ok(())
})
.unwrap();
if !recovered {
panic!(
"Parser should emit errors (recover mode), but parser parsed everything successfully"
);
}
}
|
