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//===- unittest/Tooling/RewriterTest.cpp ----------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#include "RewriterTestContext.h"
#include "clang/Tooling/Core/Replacement.h"
#include "gtest/gtest.h"
namespace clang {
namespace tooling {
namespace {
TEST(Rewriter, OverwritesChangedFiles) {
RewriterTestContext Context;
FileID ID = Context.createOnDiskFile("t.cpp", "line1\nline2\nline3\nline4");
Context.Rewrite.ReplaceText(Context.getLocation(ID, 2, 1), 5, "replaced");
EXPECT_FALSE(Context.Rewrite.overwriteChangedFiles());
EXPECT_EQ("line1\nreplaced\nline3\nline4",
Context.getFileContentFromDisk("t.cpp"));
}
TEST(Rewriter, ContinuesOverwritingFilesOnError) {
RewriterTestContext Context;
FileID FailingID = Context.createInMemoryFile("invalid/failing.cpp", "test");
Context.Rewrite.ReplaceText(Context.getLocation(FailingID, 1, 2), 1, "other");
FileID WorkingID = Context.createOnDiskFile(
"working.cpp", "line1\nline2\nline3\nline4");
Context.Rewrite.ReplaceText(Context.getLocation(WorkingID, 2, 1), 5,
"replaced");
EXPECT_TRUE(Context.Rewrite.overwriteChangedFiles());
EXPECT_EQ("line1\nreplaced\nline3\nline4",
Context.getFileContentFromDisk("working.cpp"));
}
TEST(Rewriter, AdjacentInsertAndDelete) {
Replacements Replaces;
auto Err = Replaces.add(Replacement("<file>", 6, 6, ""));
EXPECT_TRUE(!Err);
Replaces =
Replaces.merge(Replacements(Replacement("<file>", 6, 0, "replaced\n")));
auto Rewritten = applyAllReplacements("line1\nline2\nline3\nline4", Replaces);
EXPECT_TRUE(static_cast<bool>(Rewritten));
EXPECT_EQ("line1\nreplaced\nline3\nline4", *Rewritten);
}
} // end namespace
} // end namespace tooling
} // end namespace clang
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