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//===- FormatTest.cpp - TableGen Format Utility 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 "mlir/TableGen/Format.h"
#include "gmock/gmock.h"
using mlir::tblgen::FmtContext;
using mlir::tblgen::tgfmt;
using ::testing::StrEq;
TEST(FormatTest, EmptyFmtStr) {
FmtContext ctx;
std::string result = std::string(tgfmt("", &ctx));
EXPECT_TRUE(result.empty());
}
/// Allow extra unused positional parameters.
TEST(FormatTest, EmptyFmtStrExtraParams) {
FmtContext ctx;
std::string result = std::string(tgfmt("", &ctx, "a", "b", "c"));
EXPECT_TRUE(result.empty());
}
/// Allow unused placeholder substitution in context.
TEST(FormatTest, EmptyFmtStrPopulatedCtx) {
FmtContext ctx;
ctx.withBuilder("builder");
std::string result = std::string(tgfmt("", &ctx));
EXPECT_TRUE(result.empty());
}
TEST(FormatTest, LiteralFmtStr) {
FmtContext ctx;
std::string result = std::string(tgfmt("void foo {}", &ctx));
EXPECT_THAT(result, StrEq("void foo {}"));
}
/// Print single dollar literally.
TEST(FormatTest, AdjacentDollar) {
FmtContext ctx;
std::string result = std::string(tgfmt("$", &ctx));
EXPECT_THAT(result, StrEq("$"));
}
/// Print dangling dollar literally.
TEST(FormatTest, DanglingDollar) {
FmtContext ctx;
std::string result = std::string(tgfmt("foo bar baz$", &ctx));
EXPECT_THAT(result, StrEq("foo bar baz$"));
}
/// Allow escape dollars with '$$'.
TEST(FormatTest, EscapeDollars) {
FmtContext ctx;
std::string result =
std::string(tgfmt("$$ $$$$ $$$0 $$$_self", &ctx.withSelf("self"), "-0"));
EXPECT_THAT(result, StrEq("$ $$ $-0 $self"));
}
TEST(FormatTest, PositionalFmtStr) {
FmtContext ctx;
std::string b = "b";
int c = 42;
char d = 'd';
std::string result =
std::string(tgfmt("$0 $1 $2 $3", &ctx, "a", b, c + 1, d));
EXPECT_THAT(result, StrEq("a b 43 d"));
}
/// Output the placeholder if missing substitution.
TEST(FormatTest, PositionalFmtStrMissingParams) {
FmtContext ctx;
std::string result = std::string(tgfmt("$0 %1 $2", &ctx));
EXPECT_THAT(result, StrEq("$0<no-subst-found> %1 $2<no-subst-found>"));
}
/// Allow flexible reference of positional parameters.
TEST(FormatTest, PositionalFmtStrFlexibleRef) {
FmtContext ctx;
std::string result = std::string(tgfmt("$2 $0 $2", &ctx, "a", "b", "c"));
EXPECT_THAT(result, StrEq("c a c"));
}
TEST(FormatTest, PositionalFmtStrNoWhitespace) {
FmtContext ctx;
std::string result = std::string(tgfmt("foo$0bar", &ctx, "-"));
EXPECT_THAT(result, StrEq("foo-bar"));
}
TEST(FormatTest, PlaceHolderFmtStrWithSelf) {
FmtContext ctx;
std::string result = std::string(tgfmt("$_self", &ctx.withSelf("sss")));
EXPECT_THAT(result, StrEq("sss"));
}
TEST(FormatTest, PlaceHolderFmtStrWithBuilder) {
FmtContext ctx;
std::string result = std::string(tgfmt("$_builder", &ctx.withBuilder("bbb")));
EXPECT_THAT(result, StrEq("bbb"));
}
TEST(FormatTest, PlaceHolderMissingCtx) {
std::string result = std::string(tgfmt("$_op", nullptr));
EXPECT_THAT(result, StrEq("$_op<no-subst-found>"));
}
TEST(FormatTest, PlaceHolderMissingSubst) {
FmtContext ctx;
std::string result = std::string(tgfmt("$_op", &ctx.withBuilder("builder")));
EXPECT_THAT(result, StrEq("$_op<no-subst-found>"));
}
/// Test commonly used delimiters in C++.
TEST(FormatTest, PlaceHolderFmtStrDelimiter) {
FmtContext ctx;
ctx.addSubst("m", "");
std::string result = std::string(tgfmt("$m{$m($m[$m]$m)$m}$m|", &ctx));
EXPECT_THAT(result, StrEq("{([])}|"));
}
/// Test allowed characters in placeholder symbol.
TEST(FormatTest, CustomPlaceHolderFmtStrPlaceHolderChars) {
FmtContext ctx;
ctx.addSubst("m", "0 ");
ctx.addSubst("m1", "1 ");
ctx.addSubst("m2C", "2 ");
ctx.addSubst("M_3", "3 ");
std::string result = std::string(tgfmt("$m$m1$m2C$M_3", &ctx));
EXPECT_THAT(result, StrEq("0 1 2 3 "));
}
TEST(FormatTest, CustomPlaceHolderFmtStrUnregisteredPlaceHolders) {
FmtContext ctx;
std::string result = std::string(tgfmt("foo($awesome, $param)", &ctx));
EXPECT_THAT(result,
StrEq("foo($awesome<no-subst-found>, $param<no-subst-found>)"));
}
TEST(FormatTest, MixedFmtStr) {
FmtContext ctx;
ctx.withBuilder("bbb");
std::string result = std::string(tgfmt("$_builder.build($_self, {$0, $1})",
&ctx.withSelf("sss"), "a", "b"));
EXPECT_THAT(result, StrEq("bbb.build(sss, {a, b})"));
}
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