mirror of
https://github.com/carbon-language/carbon-lang.git
synced 2026-09-24 22:02:23 +01:00
Jon Ross-Perkins
96964ee534
Note, this supports plurals, but doesn't apply it anywhere. I'm mainly doing that to demonstrate the approach regarding syntax. See format_providers.h for details.
87 lines
3.1 KiB
C++
87 lines
3.1 KiB
C++
// Part of the Carbon Language project, under the Apache License v2.0 with LLVM
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// Exceptions. See /LICENSE for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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#include "toolchain/diagnostics/format_providers.h"
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#include <gmock/gmock.h>
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#include <gtest/gtest.h>
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#include "llvm/Support/FormatVariadic.h"
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namespace Carbon {
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namespace {
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using ::testing::Eq;
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TEST(BoolAsSelect, Cases) {
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constexpr char Format[] = "{0:a|b}";
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EXPECT_THAT(llvm::formatv(Format, BoolAsSelect(true)).str(), Eq("a"));
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EXPECT_THAT(llvm::formatv(Format, BoolAsSelect(false)).str(), Eq("b"));
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}
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TEST(BoolAsSelect, CasesWithNormalFormat) {
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constexpr char Format[] = "{0} {0:a|b}";
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EXPECT_THAT(llvm::formatv(Format, BoolAsSelect(true)).str(), Eq("true a"));
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EXPECT_THAT(llvm::formatv(Format, BoolAsSelect(false)).str(), Eq("false b"));
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}
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TEST(BoolAsSelect, Spaces) {
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constexpr char Format[] = "{0: a | b }";
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EXPECT_THAT(llvm::formatv(Format, BoolAsSelect(true)).str(), Eq("a "));
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EXPECT_THAT(llvm::formatv(Format, BoolAsSelect(false)).str(), Eq(" b"));
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}
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TEST(BoolAsSelect, QuotedSpaces) {
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constexpr char Format[] = "{0:' a | b '}";
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EXPECT_THAT(llvm::formatv(Format, BoolAsSelect(true)).str(), Eq(" a "));
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EXPECT_THAT(llvm::formatv(Format, BoolAsSelect(false)).str(), Eq(" b "));
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}
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TEST(IntAsSelect, OnlyDefault) {
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constexpr char Format[] = "{0::default}";
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EXPECT_THAT(llvm::formatv(Format, IntAsSelect(0)).str(), Eq("default"));
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}
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TEST(IntAsSelect, OneEquals) {
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constexpr char Format[] = "{0:=0:zero}";
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EXPECT_THAT(llvm::formatv(Format, IntAsSelect(0)).str(), Eq("zero"));
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}
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TEST(IntAsSelect, TwoEquals) {
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constexpr char Format[] = "{0:=0:zero|=1:one}";
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EXPECT_THAT(llvm::formatv(Format, IntAsSelect(0)).str(), Eq("zero"));
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EXPECT_THAT(llvm::formatv(Format, IntAsSelect(1)).str(), Eq("one"));
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}
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TEST(IntAsSelect, TwoEqualsAndDefault) {
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constexpr char Format[] = "{0:=0:zero|=1:one|:default}";
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EXPECT_THAT(llvm::formatv(Format, IntAsSelect(0)).str(), Eq("zero"));
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EXPECT_THAT(llvm::formatv(Format, IntAsSelect(1)).str(), Eq("one"));
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EXPECT_THAT(llvm::formatv(Format, IntAsSelect(2)).str(), Eq("default"));
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}
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TEST(IntAsSelect, Spaces) {
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constexpr char Format[] = "{0:=0: zero |=1: one |: default }";
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EXPECT_THAT(llvm::formatv(Format, IntAsSelect(0)).str(), Eq(" zero "));
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EXPECT_THAT(llvm::formatv(Format, IntAsSelect(1)).str(), Eq(" one "));
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EXPECT_THAT(llvm::formatv(Format, IntAsSelect(2)).str(), Eq(" default"));
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}
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TEST(IntAsSelect, QuotedSpaces) {
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constexpr char Format[] = "{0:'=0: zero |=1: one |: default '}";
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EXPECT_THAT(llvm::formatv(Format, IntAsSelect(0)).str(), Eq(" zero "));
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EXPECT_THAT(llvm::formatv(Format, IntAsSelect(1)).str(), Eq(" one "));
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EXPECT_THAT(llvm::formatv(Format, IntAsSelect(2)).str(), Eq(" default "));
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}
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TEST(IntAsSelect, PluralExample) {
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constexpr char Format[] = "{0} argument{0:=1:|:s}";
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EXPECT_THAT(llvm::formatv(Format, IntAsSelect(0)).str(), Eq("0 arguments"));
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EXPECT_THAT(llvm::formatv(Format, IntAsSelect(1)).str(), Eq("1 argument"));
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EXPECT_THAT(llvm::formatv(Format, IntAsSelect(2)).str(), Eq("2 arguments"));
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}
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} // namespace
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} // namespace Carbon
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