mirror of
https://github.com/danog/dart-sass.git
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229 lines
7.9 KiB
Dart
229 lines
7.9 KiB
Dart
// Copyright 2017 Google Inc. Use of this source code is governed by an
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// MIT-style license that can be found in the LICENSE file or at
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// https://opensource.org/licenses/MIT.
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@TestOn('vm')
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import 'package:package_resolver/package_resolver.dart';
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import 'package:path/path.dart' as p;
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import 'package:test/test.dart';
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import 'package:test_descriptor/test_descriptor.dart' as d;
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import 'package:sass/sass.dart';
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import 'package:sass/src/exception.dart';
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void main() {
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// TODO(nweiz): test SASS_PATH when dart-lang/sdk#28160 is fixed.
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group("importers", () {
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test("is used to resolve imports", () async {
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await d.dir("subdir", [d.file("subtest.scss", "a {b: c}")]).create();
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await d.file("test.scss", '@import "subtest.scss";').create();
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var css = compile(d.path("test.scss"),
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importers: [FilesystemImporter(d.path('subdir'))]);
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expect(css, equals("a {\n b: c;\n}"));
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});
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test("are checked in order", () async {
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await d
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.dir("first", [d.file("other.scss", "a {b: from-first}")]).create();
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await d
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.dir("second", [d.file("other.scss", "a {b: from-second}")]).create();
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await d.file("test.scss", '@import "other";').create();
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var css = compile(d.path("test.scss"), importers: [
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FilesystemImporter(d.path('first')),
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FilesystemImporter(d.path('second'))
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]);
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expect(css, equals("a {\n b: from-first;\n}"));
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});
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});
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group("loadPaths", () {
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test("is used to import file: URLs", () async {
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await d.dir("subdir", [d.file("subtest.scss", "a {b: c}")]).create();
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await d.file("test.scss", '@import "subtest.scss";').create();
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var css = compile(d.path("test.scss"), loadPaths: [d.path('subdir')]);
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expect(css, equals("a {\n b: c;\n}"));
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});
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test("can import partials", () async {
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await d.dir("subdir", [d.file("_subtest.scss", "a {b: c}")]).create();
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await d.file("test.scss", '@import "subtest.scss";').create();
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var css = compile(d.path("test.scss"), loadPaths: [d.path('subdir')]);
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expect(css, equals("a {\n b: c;\n}"));
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});
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test("adds a .scss extension", () async {
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await d.dir("subdir", [d.file("subtest.scss", "a {b: c}")]).create();
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await d.file("test.scss", '@import "subtest";').create();
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var css = compile(d.path("test.scss"), loadPaths: [d.path('subdir')]);
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expect(css, equals("a {\n b: c;\n}"));
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});
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test("adds a .sass extension", () async {
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await d.dir("subdir", [d.file("subtest.sass", "a\n b: c")]).create();
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await d.file("test.scss", '@import "subtest";').create();
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var css = compile(d.path("test.scss"), loadPaths: [d.path('subdir')]);
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expect(css, equals("a {\n b: c;\n}"));
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});
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test("are checked in order", () async {
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await d
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.dir("first", [d.file("other.scss", "a {b: from-first}")]).create();
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await d
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.dir("second", [d.file("other.scss", "a {b: from-second}")]).create();
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await d.file("test.scss", '@import "other";').create();
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var css = compile(d.path("test.scss"),
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loadPaths: [d.path('first'), d.path('second')]);
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expect(css, equals("a {\n b: from-first;\n}"));
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});
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});
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group("packageResolver", () {
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test("is used to import package: URLs", () async {
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await d.dir("subdir", [d.file("test.scss", "a {b: 1 + 2}")]).create();
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await d
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.file("test.scss", '@import "package:fake_package/test";')
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.create();
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var resolver = SyncPackageResolver.config(
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{"fake_package": p.toUri(d.path('subdir'))});
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var css = compile(d.path("test.scss"), packageResolver: resolver);
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expect(css, equals("a {\n b: 3;\n}"));
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});
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test("can resolve relative paths in a package", () async {
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await d.dir("subdir", [
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d.file("test.scss", "@import 'other'"),
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d.file("_other.scss", "a {b: 1 + 2}"),
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]).create();
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await d
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.file("test.scss", '@import "package:fake_package/test";')
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.create();
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var resolver = SyncPackageResolver.config(
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{"fake_package": p.toUri(d.path('subdir'))});
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var css = compile(d.path("test.scss"), packageResolver: resolver);
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expect(css, equals("a {\n b: 3;\n}"));
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});
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test("doesn't import a package URL from a missing package", () async {
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await d
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.file("test.scss", '@import "package:fake_package/test_aux";')
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.create();
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var resolver = SyncPackageResolver.config({});
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expect(() => compile(d.path("test.scss"), packageResolver: resolver),
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throwsA(const TypeMatcher<SassRuntimeException>()));
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});
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});
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group("import precedence", () {
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test("relative imports take precedence over importers", () async {
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await d.dir(
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"subdir", [d.file("other.scss", "a {b: from-load-path}")]).create();
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await d.file("other.scss", "a {b: from-relative}").create();
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await d.file("test.scss", '@import "other";').create();
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var css = compile(d.path("test.scss"),
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importers: [FilesystemImporter(d.path('subdir'))]);
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expect(css, equals("a {\n b: from-relative;\n}"));
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});
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test("the original importer takes precedence over other importers",
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() async {
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await d.dir(
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"original", [d.file("other.scss", "a {b: from-original}")]).create();
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await d
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.dir("other", [d.file("other.scss", "a {b: from-other}")]).create();
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var css = compileString('@import "other";',
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importer: FilesystemImporter(d.path('original')),
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url: p.toUri(d.path('original/test.scss')),
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importers: [FilesystemImporter(d.path('other'))]);
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expect(css, equals("a {\n b: from-original;\n}"));
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});
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test("importers take precedence over load paths", () async {
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await d.dir("load-path",
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[d.file("other.scss", "a {b: from-load-path}")]).create();
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await d.dir(
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"importer", [d.file("other.scss", "a {b: from-importer}")]).create();
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await d.file("test.scss", '@import "other";').create();
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var css = compile(d.path("test.scss"),
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importers: [FilesystemImporter(d.path('importer'))],
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loadPaths: [d.path('load-path')]);
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expect(css, equals("a {\n b: from-importer;\n}"));
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});
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test("importers take precedence over packageResolver", () async {
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await d.dir("package",
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[d.file("other.scss", "a {b: from-package-resolver}")]).create();
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await d.dir(
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"importer", [d.file("other.scss", "a {b: from-importer}")]).create();
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await d
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.file("test.scss", '@import "package:fake_package/other";')
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.create();
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var css = compile(d.path("test.scss"),
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importers: [
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PackageImporter(SyncPackageResolver.config(
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{"fake_package": p.toUri(d.path('importer'))}))
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],
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packageResolver: SyncPackageResolver.config(
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{"fake_package": p.toUri(d.path('package'))}));
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expect(css, equals("a {\n b: from-importer;\n}"));
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});
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});
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group("charset", () {
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group("= true", () {
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test("doesn't emit @charset for a pure-ASCII stylesheet", () {
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expect(compileString("a {b: c}"), equals("""
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a {
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b: c;
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}"""));
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});
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test("emits @charset with expanded output", () async {
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expect(compileString("a {b: 👭}"), equals("""
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@charset "UTF-8";
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a {
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b: 👭;
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}"""));
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});
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test("emits a BOM with compressed output", () async {
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expect(compileString("a {b: 👭}", style: OutputStyle.compressed),
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equals("\u{FEFF}a{b:👭}"));
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});
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});
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group("= false", () {
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test("doesn't emit @charset with expanded output", () async {
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expect(compileString("a {b: 👭}", charset: false), equals("""
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a {
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b: 👭;
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}"""));
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});
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test("emits a BOM with compressed output", () async {
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expect(
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compileString("a {b: 👭}",
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charset: false, style: OutputStyle.compressed),
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equals("a{b:👭}"));
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});
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});
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});
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}
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