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#include "lldb/Utility/DiagnosticsRendering.h"
#include "lldb/Utility/StreamString.h"
#include "gtest/gtest.h"
using namespace lldb_private;
using namespace lldb;
using llvm::StringRef;
namespace {
class ErrorDisplayTest : public ::testing::Test {};
std::string Render(std::vector<DiagnosticDetail> details) {
StreamString stream;
RenderDiagnosticDetails(stream, 0, true, details);
return stream.GetData();
}
} // namespace
TEST_F(ErrorDisplayTest, RenderStatus) {
using SourceLocation = DiagnosticDetail::SourceLocation;
{
SourceLocation inline_loc;
inline_loc.in_user_input = true;
std::string result =
Render({DiagnosticDetail{inline_loc, eSeverityError, "foo", ""}});
ASSERT_TRUE(StringRef(result).contains("error:"));
ASSERT_TRUE(StringRef(result).contains("foo"));
}
{
// Test that diagnostics on the same column can be handled and all
// three errors are diagnosed.
SourceLocation loc1 = {FileSpec{"a.c"}, 13, 5, 0, false, true};
SourceLocation loc2 = {FileSpec{"a.c"}, 13, 7, 0, false, true};
SourceLocation loc3 = {FileSpec{"a.c"}, 13, 9, 0, false, true};
std::string result =
Render({DiagnosticDetail{loc1, eSeverityError, "1", "1"},
DiagnosticDetail{loc2, eSeverityError, "2a", "2a"},
DiagnosticDetail{loc2, eSeverityInfo, "2b", "2b"},
DiagnosticDetail{loc3, eSeverityError, "3", "3"}});
llvm::SmallVector<StringRef> lines;
StringRef(result).split(lines, '\n');
// 1234567890123
ASSERT_EQ(lines[0], " ^ ^ ^");
ASSERT_EQ(lines[1], " | | error: 3");
ASSERT_EQ(lines[2], " | error: 2a");
ASSERT_EQ(lines[3], " | note: 2b");
ASSERT_EQ(lines[4], " error: 1");
}
{
// Test that diagnostics in reverse order are emitted correctly.
SourceLocation loc1 = {FileSpec{"a.c"}, 1, 20, 0, false, true};
SourceLocation loc2 = {FileSpec{"a.c"}, 2, 10, 0, false, true};
std::string result =
Render({DiagnosticDetail{loc2, eSeverityError, "X", "X"},
DiagnosticDetail{loc1, eSeverityError, "Y", "Y"}});
// Unintuitively the later diagnostic appears first in the string:
// ^ ^
// | second
// first
ASSERT_GT(StringRef(result).find("Y"), StringRef(result).find("X"));
}
{
// Test that diagnostics in reverse order are emitted correctly.
SourceLocation loc1 = {FileSpec{"a.c"}, 1, 10, 0, false, true};
SourceLocation loc2 = {FileSpec{"a.c"}, 1, 20, 0, false, true};
std::string result =
Render({DiagnosticDetail{loc2, eSeverityError, "X", "X"},
DiagnosticDetail{loc1, eSeverityError, "Y", "Y"}});
ASSERT_GT(StringRef(result).find("Y"), StringRef(result).find("X"));
}
{
// Test that range diagnostics are emitted correctly.
SourceLocation loc1 = {FileSpec{"a.c"}, 1, 1, 3, false, true};
SourceLocation loc2 = {FileSpec{"a.c"}, 1, 5, 3, false, true};
std::string result =
Render({DiagnosticDetail{loc1, eSeverityError, "X", "X"},
DiagnosticDetail{loc2, eSeverityError, "Y", "Y"}});
llvm::SmallVector<StringRef> lines;
StringRef(result).split(lines, '\n');
// 1234567
ASSERT_EQ(lines[0], "^~~ ^~~");
ASSERT_EQ(lines[1], "| error: Y");
ASSERT_EQ(lines[2], "error: X");
}
{
// Test diagnostics on the same line are emitted correctly.
SourceLocation loc1 = {FileSpec{"a.c"}, 1, 2, 0, false, true};
SourceLocation loc2 = {FileSpec{"a.c"}, 1, 6, 0, false, true};
std::string result =
Render({DiagnosticDetail{loc1, eSeverityError, "X", "X"},
DiagnosticDetail{loc2, eSeverityError, "Y", "Y"}});
llvm::SmallVector<StringRef> lines;
StringRef(result).split(lines, '\n');
// 1234567
ASSERT_EQ(lines[0], " ^ ^");
ASSERT_EQ(lines[1], " | error: Y");
ASSERT_EQ(lines[2], " error: X");
}
}
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