From c2989fe29b6a75c61388272ae4cfdc9b70a12345 Mon Sep 17 00:00:00 2001 From: Abseil Team Date: Sun, 18 Nov 2018 03:07:05 -0500 Subject: Googletest export Add stringization based tests for gmock-pp.h macros PiperOrigin-RevId: 221961835 --- googlemock/test/gmock-pp-string_test.cc | 204 ++++++++++++++++++++++++++++++++ 1 file changed, 204 insertions(+) create mode 100644 googlemock/test/gmock-pp-string_test.cc diff --git a/googlemock/test/gmock-pp-string_test.cc b/googlemock/test/gmock-pp-string_test.cc new file mode 100644 index 0000000..4147a84 --- /dev/null +++ b/googlemock/test/gmock-pp-string_test.cc @@ -0,0 +1,204 @@ +// Copyright 2018, Google Inc. +// All rights reserved. +// +// Redistribution and use in source and binary forms, with or without +// modification, are permitted provided that the following conditions are +// met: +// +// * Redistributions of source code must retain the above copyright +// notice, this list of conditions and the following disclaimer. +// * Redistributions in binary form must reproduce the above +// copyright notice, this list of conditions and the following disclaimer +// in the documentation and/or other materials provided with the +// distribution. +// * Neither the name of Google Inc. nor the names of its +// contributors may be used to endorse or promote products derived from +// this software without specific prior written permission. +// +// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + +// Google Mock - a framework for writing C++ mock classes. +// +// This file tests the internal preprocessor macro library. +#include "gmock/internal/gmock-pp.h" + +#include "absl/strings/str_join.h" +#include "absl/strings/str_split.h" +#include "gmock/gmock.h" + +namespace testing { +namespace { + +// Matcher to verify that to strings are identical up to whitespace +// Not 100% correct, because it treats "AB" as equal to "A B". +::testing::Matcher SameExceptSpaces(absl::string_view s) { + auto remove_spaces = [](const absl::string_view& to_split) { + return absl::StrJoin(absl::StrSplit(to_split, ' '), ""); + }; + return ::testing::ResultOf(remove_spaces, remove_spaces(s)); +} + +// Verify that a macro expands to a given text. Ignores whitespace difference. +// In MSVC, GMOCK_PP_STRINGIZE() returns nothing, rather than "". So concatenate +// with an empty string. +#define EXPECT_EXPANSION(Result, Macro) \ + EXPECT_THAT("" GMOCK_PP_STRINGIZE(Macro), SameExceptSpaces(Result)) + +TEST(Macros, Cat) { + EXPECT_EXPANSION("14", GMOCK_PP_CAT(1, 4)); + EXPECT_EXPANSION("+=", GMOCK_PP_CAT(+, =)); +} + +TEST(Macros, Narg) { + EXPECT_EXPANSION("1", GMOCK_PP_NARG()); + EXPECT_EXPANSION("1", GMOCK_PP_NARG(x)); + EXPECT_EXPANSION("2", GMOCK_PP_NARG(x, y)); + EXPECT_EXPANSION("3", GMOCK_PP_NARG(x, y, z)); + EXPECT_EXPANSION("4", GMOCK_PP_NARG(x, y, z, w)); + + EXPECT_EXPANSION("0", GMOCK_PP_NARG0()); + EXPECT_EXPANSION("1", GMOCK_PP_NARG0(x)); + EXPECT_EXPANSION("2", GMOCK_PP_NARG0(x, y)); +} + +TEST(Macros, Comma) { + EXPECT_EXPANSION("0", GMOCK_PP_HAS_COMMA()); + EXPECT_EXPANSION("1", GMOCK_PP_HAS_COMMA(, )); + EXPECT_EXPANSION("0", GMOCK_PP_HAS_COMMA((, ))); +} + +TEST(Macros, IsEmpty) { + EXPECT_EXPANSION("1", GMOCK_PP_IS_EMPTY()); + EXPECT_EXPANSION("0", GMOCK_PP_IS_EMPTY(, )); + EXPECT_EXPANSION("0", GMOCK_PP_IS_EMPTY(a)); + EXPECT_EXPANSION("0", GMOCK_PP_IS_EMPTY(())); + +#define GMOCK_PP_INTERNAL_IS_EMPTY_TEST_1 + EXPECT_EXPANSION("1", GMOCK_PP_IS_EMPTY(GMOCK_PP_INTERNAL_IS_EMPTY_TEST_1)); +} + +TEST(Macros, If) { + EXPECT_EXPANSION("1", GMOCK_PP_IF(1, 1, 2)); + EXPECT_EXPANSION("2", GMOCK_PP_IF(0, 1, 2)); +} + +TEST(Macros, HeadTail) { + EXPECT_EXPANSION("1", GMOCK_PP_HEAD(1)); + EXPECT_EXPANSION("1", GMOCK_PP_HEAD(1, 2)); + EXPECT_EXPANSION("1", GMOCK_PP_HEAD(1, 2, 3)); + + EXPECT_EXPANSION("", GMOCK_PP_TAIL(1)); + EXPECT_EXPANSION("2", GMOCK_PP_TAIL(1, 2)); + EXPECT_EXPANSION("2", GMOCK_PP_HEAD(GMOCK_PP_TAIL(1, 2, 3))); +} + +TEST(Macros, Parentheses) { + EXPECT_EXPANSION("0", GMOCK_PP_IS_BEGIN_PARENS(sss)); + EXPECT_EXPANSION("0", GMOCK_PP_IS_BEGIN_PARENS(sss())); + EXPECT_EXPANSION("0", GMOCK_PP_IS_BEGIN_PARENS(sss() sss)); + EXPECT_EXPANSION("1", GMOCK_PP_IS_BEGIN_PARENS((sss))); + EXPECT_EXPANSION("1", GMOCK_PP_IS_BEGIN_PARENS((sss)ss)); + + EXPECT_EXPANSION("0", GMOCK_PP_IS_ENCLOSED_PARENS(sss)); + EXPECT_EXPANSION("0", GMOCK_PP_IS_ENCLOSED_PARENS(sss())); + EXPECT_EXPANSION("0", GMOCK_PP_IS_ENCLOSED_PARENS(sss() sss)); + EXPECT_EXPANSION("1", GMOCK_PP_IS_ENCLOSED_PARENS((sss))); + EXPECT_EXPANSION("0", GMOCK_PP_IS_ENCLOSED_PARENS((sss)ss)); + + EXPECT_EXPANSION("1 + 1", GMOCK_PP_REMOVE_PARENS((1 + 1))); +} + +TEST(Macros, Increment) { + EXPECT_EXPANSION("1", GMOCK_PP_INC(0)); + EXPECT_EXPANSION("2", GMOCK_PP_INC(1)); + EXPECT_EXPANSION("3", GMOCK_PP_INC(2)); + EXPECT_EXPANSION("4", GMOCK_PP_INC(3)); + EXPECT_EXPANSION("5", GMOCK_PP_INC(4)); + + EXPECT_EXPANSION("16", GMOCK_PP_INC(15)); +} + +#define JOINER_CAT(a, b) a##b +#define JOINER(_N, _Data, _Elem) JOINER_CAT(_Data, _N) = _Elem + +TEST(Macros, Repeat) { + EXPECT_EXPANSION("", GMOCK_PP_REPEAT(JOINER, X, 0)); + EXPECT_EXPANSION("X0=", GMOCK_PP_REPEAT(JOINER, X, 1)); + EXPECT_EXPANSION("X0= X1=", GMOCK_PP_REPEAT(JOINER, X, 2)); + EXPECT_EXPANSION("X0= X1= X2=", GMOCK_PP_REPEAT(JOINER, X, 3)); + EXPECT_EXPANSION("X0= X1= X2= X3=", GMOCK_PP_REPEAT(JOINER, X, 4)); + EXPECT_EXPANSION("X0= X1= X2= X3= X4=", GMOCK_PP_REPEAT(JOINER, X, 5)); + EXPECT_EXPANSION("X0= X1= X2= X3= X4= X5=", GMOCK_PP_REPEAT(JOINER, X, 6)); + EXPECT_EXPANSION("X0= X1= X2= X3= X4= X5= X6=", + GMOCK_PP_REPEAT(JOINER, X, 7)); + EXPECT_EXPANSION("X0= X1= X2= X3= X4= X5= X6= X7=", + GMOCK_PP_REPEAT(JOINER, X, 8)); + EXPECT_EXPANSION("X0= X1= X2= X3= X4= X5= X6= X7= X8=", + GMOCK_PP_REPEAT(JOINER, X, 9)); + EXPECT_EXPANSION("X0= X1= X2= X3= X4= X5= X6= X7= X8= X9=", + GMOCK_PP_REPEAT(JOINER, X, 10)); + EXPECT_EXPANSION("X0= X1= X2= X3= X4= X5= X6= X7= X8= X9= X10=", + GMOCK_PP_REPEAT(JOINER, X, 11)); + EXPECT_EXPANSION("X0= X1= X2= X3= X4= X5= X6= X7= X8= X9= X10= X11=", + GMOCK_PP_REPEAT(JOINER, X, 12)); + EXPECT_EXPANSION("X0= X1= X2= X3= X4= X5= X6= X7= X8= X9= X10= X11= X12=", + GMOCK_PP_REPEAT(JOINER, X, 13)); + EXPECT_EXPANSION( + "X0= X1= X2= X3= X4= X5= X6= X7= X8= X9= X10= X11= X12= X13=", + GMOCK_PP_REPEAT(JOINER, X, 14)); + EXPECT_EXPANSION( + "X0= X1= X2= X3= X4= X5= X6= X7= X8= X9= X10= X11= X12= X13= X14=", + GMOCK_PP_REPEAT(JOINER, X, 15)); +} +TEST(Macros, ForEach) { + EXPECT_EXPANSION("", GMOCK_PP_FOR_EACH(JOINER, X, ())); + EXPECT_EXPANSION("X0=a", GMOCK_PP_FOR_EACH(JOINER, X, (a))); + EXPECT_EXPANSION("X0=a X1=b", GMOCK_PP_FOR_EACH(JOINER, X, (a, b))); + EXPECT_EXPANSION("X0=a X1=b X2=c", GMOCK_PP_FOR_EACH(JOINER, X, (a, b, c))); + EXPECT_EXPANSION("X0=a X1=b X2=c X3=d", + GMOCK_PP_FOR_EACH(JOINER, X, (a, b, c, d))); + EXPECT_EXPANSION("X0=a X1=b X2=c X3=d X4=e", + GMOCK_PP_FOR_EACH(JOINER, X, (a, b, c, d, e))); + EXPECT_EXPANSION("X0=a X1=b X2=c X3=d X4=e X5=f", + GMOCK_PP_FOR_EACH(JOINER, X, (a, b, c, d, e, f))); + EXPECT_EXPANSION("X0=a X1=b X2=c X3=d X4=e X5=f X6=g", + GMOCK_PP_FOR_EACH(JOINER, X, (a, b, c, d, e, f, g))); + EXPECT_EXPANSION("X0=a X1=b X2=c X3=d X4=e X5=f X6=g X7=h", + GMOCK_PP_FOR_EACH(JOINER, X, (a, b, c, d, e, f, g, h))); + EXPECT_EXPANSION("X0=a X1=b X2=c X3=d X4=e X5=f X6=g X7=h X8=i", + GMOCK_PP_FOR_EACH(JOINER, X, (a, b, c, d, e, f, g, h, i))); + EXPECT_EXPANSION( + "X0=a X1=b X2=c X3=d X4=e X5=f X6=g X7=h X8=i X9=j", + GMOCK_PP_FOR_EACH(JOINER, X, (a, b, c, d, e, f, g, h, i, j))); + EXPECT_EXPANSION( + "X0=a X1=b X2=c X3=d X4=e X5=f X6=g X7=h X8=i X9=j X10=k", + GMOCK_PP_FOR_EACH(JOINER, X, (a, b, c, d, e, f, g, h, i, j, k))); + EXPECT_EXPANSION( + "X0=a X1=b X2=c X3=d X4=e X5=f X6=g X7=h X8=i X9=j X10=k X11=l", + GMOCK_PP_FOR_EACH(JOINER, X, (a, b, c, d, e, f, g, h, i, j, k, l))); + EXPECT_EXPANSION( + "X0=a X1=b X2=c X3=d X4=e X5=f X6=g X7=h X8=i X9=j X10=k X11=l X12=m", + GMOCK_PP_FOR_EACH(JOINER, X, (a, b, c, d, e, f, g, h, i, j, k, l, m))); + EXPECT_EXPANSION( + "X0=a X1=b X2=c X3=d X4=e X5=f X6=g X7=h X8=i X9=j X10=k X11=l X12=m " + "X13=n", + GMOCK_PP_FOR_EACH(JOINER, X, (a, b, c, d, e, f, g, h, i, j, k, l, m, n))); + EXPECT_EXPANSION( + "X0=a X1=b X2=c X3=d X4=e X5=f X6=g X7=h X8=i X9=j X10=k X11=l X12=m " + "X13=n X14=o", + GMOCK_PP_FOR_EACH(JOINER, X, + (a, b, c, d, e, f, g, h, i, j, k, l, m, n, o))); +} + +} // namespace +} // namespace testing -- cgit v0.12