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llvm-project/clang/unittests/Format/SortImportsTestJS.cpp

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//===- unittest/Format/SortImportsTestJS.cpp - JS import sort unit tests --===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#include "FormatTestUtils.h"
#include "clang/Format/Format.h"
#include "llvm/Support/Debug.h"
#include "gtest/gtest.h"
#define DEBUG_TYPE "format-test"
namespace clang {
namespace format {
namespace {
class SortImportsTestJS : public ::testing::Test {
protected:
std::string sort(StringRef Code, unsigned Offset = 0, unsigned Length = 0) {
StringRef FileName = "input.js";
if (Length == 0U)
Length = Code.size() - Offset;
std::vector<tooling::Range> Ranges(1, tooling::Range(Offset, Length));
auto Sorted =
applyAllReplacements(Code, sortIncludes(Style, Code, Ranges, FileName));
EXPECT_TRUE(static_cast<bool>(Sorted));
auto Formatted = applyAllReplacements(
*Sorted, reformat(Style, *Sorted, Ranges, FileName));
EXPECT_TRUE(static_cast<bool>(Formatted));
return *Formatted;
}
void verifySort(llvm::StringRef Expected, llvm::StringRef Code,
unsigned Offset = 0, unsigned Length = 0) {
std::string Result = sort(Code, Offset, Length);
EXPECT_EQ(Expected.str(), Result) << "Expected:\n"
<< Expected << "\nActual:\n"
<< Result;
}
FormatStyle Style = getGoogleStyle(FormatStyle::LK_JavaScript);
};
TEST_F(SortImportsTestJS, AlreadySorted) {
verifySort("import {sym} from 'a';\n"
"import {sym} from 'b';\n"
"import {sym} from 'c';\n"
"\n"
"let x = 1;",
"import {sym} from 'a';\n"
"import {sym} from 'b';\n"
"import {sym} from 'c';\n"
"\n"
"let x = 1;");
}
TEST_F(SortImportsTestJS, BasicSorting) {
verifySort("import {sym} from 'a';\n"
"import {sym} from 'b';\n"
"import {sym} from 'c';\n"
"\n"
"let x = 1;",
"import {sym} from 'a';\n"
"import {sym} from 'c';\n"
"import {sym} from 'b';\n"
"let x = 1;");
}
TEST_F(SortImportsTestJS, DefaultBinding) {
verifySort("import A from 'a';\n"
"import B from 'b';\n"
"\n"
"let x = 1;",
"import B from 'b';\n"
"import A from 'a';\n"
"let x = 1;");
}
TEST_F(SortImportsTestJS, DefaultAndNamedBinding) {
verifySort("import A, {a} from 'a';\n"
"import B, {b} from 'b';\n"
"\n"
"let x = 1;",
"import B, {b} from 'b';\n"
"import A, {a} from 'a';\n"
"let x = 1;");
}
TEST_F(SortImportsTestJS, WrappedImportStatements) {
verifySort("import {sym1, sym2} from 'a';\n"
"import {sym} from 'b';\n"
"\n"
"1;",
"import\n"
" {sym}\n"
" from 'b';\n"
"import {\n"
" sym1,\n"
" sym2\n"
"} from 'a';\n"
"1;");
}
TEST_F(SortImportsTestJS, SeparateMainCodeBody) {
verifySort("import {sym} from 'a';"
"\n"
"let x = 1;\n",
"import {sym} from 'a'; let x = 1;\n");
}
TEST_F(SortImportsTestJS, Comments) {
verifySort("/** @fileoverview This is a great file. */\n"
"// A very important import follows.\n"
"import {sym} from 'a'; /* more comments */\n"
"import {sym} from 'b'; // from //foo:bar\n",
"/** @fileoverview This is a great file. */\n"
"import {sym} from 'b'; // from //foo:bar\n"
"// A very important import follows.\n"
"import {sym} from 'a'; /* more comments */\n");
verifySort("import {sym} from 'a';\n"
"import {sym} from 'b';\n"
"\n"
"/** Comment on variable. */\n"
"const x = 1;\n",
"import {sym} from 'b';\n"
"import {sym} from 'a';\n"
"\n"
"/** Comment on variable. */\n"
"const x = 1;\n");
}
TEST_F(SortImportsTestJS, SortStar) {
verifySort("import * as foo from 'a';\n"
"import {sym} from 'a';\n"
"import * as bar from 'b';\n",
"import {sym} from 'a';\n"
"import * as foo from 'a';\n"
"import * as bar from 'b';\n");
}
TEST_F(SortImportsTestJS, AliasesSymbols) {
verifySort("import {sym1 as alias1} from 'b';\n"
"import {sym2 as alias2, sym3 as alias3} from 'c';\n",
"import {sym2 as alias2, sym3 as alias3} from 'c';\n"
"import {sym1 as alias1} from 'b';\n");
}
TEST_F(SortImportsTestJS, SortSymbols) {
verifySort("import {sym1, sym2 as a, sym3} from 'b';\n",
"import {sym2 as a, sym1, sym3} from 'b';\n");
verifySort("import {sym1 /* important! */, /*!*/ sym2 as a} from 'b';\n",
"import {/*!*/ sym2 as a, sym1 /* important! */} from 'b';\n");
verifySort("import {sym1, sym2} from 'b';\n", "import {\n"
" sym2 \n"
",\n"
" sym1 \n"
"} from 'b';\n");
}
TEST_F(SortImportsTestJS, GroupImports) {
verifySort("import {a} from 'absolute';\n"
"\n"
"import {b} from '../parent';\n"
"import {b} from '../parent/nested';\n"
"\n"
"import {b} from './relative/path';\n"
"import {b} from './relative/path/nested';\n"
"\n"
"let x = 1;\n",
"import {b} from './relative/path/nested';\n"
"import {b} from './relative/path';\n"
"import {b} from '../parent/nested';\n"
"import {b} from '../parent';\n"
"import {a} from 'absolute';\n"
"let x = 1;\n");
}
TEST_F(SortImportsTestJS, Exports) {
verifySort("import {S} from 'bpath';\n"
"\n"
"import {T} from './cpath';\n"
"\n"
"export {A, B} from 'apath';\n"
"export {P} from '../parent';\n"
"export {R} from './relative';\n"
"export {S};\n"
"\n"
"let x = 1;\n"
"export y = 1;\n",
"export {R} from './relative';\n"
"import {T} from './cpath';\n"
"export {S};\n"
"export {A, B} from 'apath';\n"
"import {S} from 'bpath';\n"
"export {P} from '../parent';\n"
"let x = 1;\n"
"export y = 1;\n");
verifySort("import {S} from 'bpath';\n"
"\n"
"export {T} from 'epath';\n",
"export {T} from 'epath';\n"
"import {S} from 'bpath';\n");
}
TEST_F(SortImportsTestJS, SideEffectImports) {
verifySort("import 'ZZside-effect';\n"
"import 'AAside-effect';\n"
"\n"
"import {A} from 'absolute';\n"
"\n"
"import {R} from './relative';\n",
"import {R} from './relative';\n"
"import 'ZZside-effect';\n"
"import {A} from 'absolute';\n"
"import 'AAside-effect';\n");
}
TEST_F(SortImportsTestJS, AffectedRange) {
// Affected range inside of import statements.
verifySort("import {sym} from 'a';\n"
"import {sym} from 'b';\n"
"import {sym} from 'c';\n"
"\n"
"let x = 1;",
"import {sym} from 'c';\n"
"import {sym} from 'b';\n"
"import {sym} from 'a';\n"
"let x = 1;",
0, 30);
// Affected range outside of import statements.
verifySort("import {sym} from 'c';\n"
"import {sym} from 'b';\n"
"import {sym} from 'a';\n"
"\n"
"let x = 1;",
"import {sym} from 'c';\n"
"import {sym} from 'b';\n"
"import {sym} from 'a';\n"
"\n"
"let x = 1;",
70, 1);
}
TEST_F(SortImportsTestJS, SortingCanShrink) {
// Sort excluding a suffix.
verifySort("import {B} from 'a';\n"
"import {A} from 'b';\n"
"\n"
"1;",
"import {A} from 'b';\n"
"\n"
"import {B} from 'a';\n"
"\n"
"1;");
}
TEST_F(SortImportsTestJS, TrailingComma) {
verifySort("import {A, B,} from 'aa';\n", "import {B, A,} from 'aa';\n");
}
TEST_F(SortImportsTestJS, SortCaseInsensitive) {
verifySort("import {A} from 'aa';\n"
"import {A} from 'Ab';\n"
"import {A} from 'b';\n"
"import {A} from 'Bc';\n"
"\n"
"1;",
"import {A} from 'b';\n"
"import {A} from 'Bc';\n"
"import {A} from 'Ab';\n"
"import {A} from 'aa';\n"
"\n"
"1;");
verifySort("import {aa, Ab, b, Bc} from 'x';\n"
"\n"
"1;",
"import {b, Bc, Ab, aa} from 'x';\n"
"\n"
"1;");
}
TEST_F(SortImportsTestJS, SortMultiLine) {
// Reproduces issue where multi-line import was not parsed correctly.
verifySort("import {A} from 'a';\n"
"import {A} from 'b';\n"
"\n"
"1;",
"import\n"
"{\n"
"A\n"
"}\n"
"from\n"
"'b';\n"
"import {A} from 'a';\n"
"\n"
"1;");
}
TEST_F(SortImportsTestJS, SortDefaultImports) {
// Reproduces issue where multi-line import was not parsed correctly.
verifySort("import {A} from 'a';\n"
"import {default as B} from 'b';\n",
"import {default as B} from 'b';\n"
"import {A} from 'a';\n");
}
} // end namespace
} // end namespace format
} // end namespace clang
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