diff options
Diffstat (limited to 'include')
-rw-r--r-- | include/gmock/gmock-generated-matchers.h | 501 | ||||
-rw-r--r-- | include/gmock/gmock-generated-matchers.h.pump | 141 | ||||
-rw-r--r-- | include/gmock/gmock-printers.h | 96 |
3 files changed, 476 insertions, 262 deletions
diff --git a/include/gmock/gmock-generated-matchers.h b/include/gmock/gmock-generated-matchers.h index 727109cd..26c064b7 100644 --- a/include/gmock/gmock-generated-matchers.h +++ b/include/gmock/gmock-generated-matchers.h @@ -40,18 +40,11 @@ #include <string> #include <vector> #include <gmock/gmock-matchers.h> +#include <gmock/gmock-printers.h> namespace testing { namespace internal { -// Generates a non-fatal failure iff 'description' is not a valid -// matcher description. -inline void ValidateMatcherDescription(const char* description) { - EXPECT_STREQ("", description) - << "The description string in a MATCHER*() macro must be \"\" " - "at this moment. We will implement custom description string soon."; -} - // Implements ElementsAre() and ElementsAreArray(). template <typename Container> class ElementsAreMatcherImpl : public MatcherInterface<Container> { @@ -674,10 +667,18 @@ ElementsAreArray(const T (&array)[N]) { // // will define a matcher with the given name that executes the // statements, which must return a bool to indicate if the match -// succeeds. For now, the description_string must be "", but we'll -// allow other values soon. Inside the statements, you can refer to -// the value being matched by 'arg', and refer to its type by -// 'arg_type'. For example: +// succeeds. Inside the statements, you can refer to the value being +// matched by 'arg', and refer to its type by 'arg_type'. +// +// The description string documents what the matcher does, and is used +// to generate the failure message when the match fails. Since a +// MATCHER() is usually defined in a header file shared by multiple +// C++ source files, we require the description to be a C-string +// literal to avoid possible side effects. It can be empty, in which +// case we'll use the sequence of words in the matcher name as the +// description. +// +// For example: // // MATCHER(IsEven, "") { return (arg % 2) == 0; } // @@ -740,6 +741,38 @@ ElementsAreArray(const T (&array)[N]) { // We also provide MATCHER_P2, MATCHER_P3, ..., up to MATCHER_P10 to // support multi-parameter matchers. // +// When defining a parameterized matcher, you can use Python-style +// interpolations in the description string to refer to the parameter +// values. We support the following syntax currently: +// +// %% a single '%' character +// %(*)s all parameters of the matcher printed as a tuple +// %(foo)s value of the matcher parameter named 'foo' +// +// For example, +// +// MATCHER_P2(InClosedRange, low, hi, "is in range [%(low)s, %(hi)s]") { +// return low <= arg && arg <= hi; +// } +// ... +// EXPECT_THAT(3, InClosedRange(4, 6)); +// +// would generate a failure that contains the message: +// +// Expected: is in range [4, 6] +// +// If you specify "" as the description, the failure message will +// contain the sequence of words in the matcher name followed by the +// parameter values printed as a tuple. For example, +// +// MATCHER_P2(InClosedRange, low, hi, "") { ... } +// ... +// EXPECT_THAT(3, InClosedRange(4, 6)); +// +// would generate a failure that contains the text: +// +// Expected: in closed range (4, 6) +// // For the purpose of typing, you can view // // MATCHER_Pk(Foo, p1, ..., pk, description_string) { ... } @@ -796,25 +829,77 @@ ElementsAreArray(const T (&array)[N]) { // To learn more about using these macros, please search for 'MATCHER' // on http://code.google.com/p/googlemock/wiki/CookBook. +namespace testing { +namespace internal { + +// Constants denoting interpolations in a matcher description string. +const int kTupleInterpolation = -1; // "%(*)s" +const int kPercentInterpolation = -2; // "%%" +const int kInvalidInterpolation = -3; // "%" followed by invalid text + +// Records the location and content of an interpolation. +struct Interpolation { + Interpolation(const char* start, const char* end, int param) + : start_pos(start), end_pos(end), param_index(param) {} + + // Points to the start of the interpolation (the '%' character). + const char* start_pos; + // Points to the first character after the interpolation. + const char* end_pos; + // 0-based index of the interpolated matcher parameter; + // kTupleInterpolation for "%(*)s"; kPercentInterpolation for "%%". + int param_index; +}; + +typedef ::std::vector<Interpolation> Interpolations; + +// Parses a matcher description string and returns a vector of +// interpolations that appear in the string; generates non-fatal +// failures iff 'description' is an invalid matcher description. +// 'param_names' is a NULL-terminated array of parameter names in the +// order they appear in the MATCHER_P*() parameter list. +Interpolations ValidateMatcherDescription( + const char* param_names[], const char* description); + +// Returns the actual matcher description, given the matcher name, +// user-supplied description template string, interpolations in the +// string, and the printed values of the matcher parameters. +string FormatMatcherDescription( + const char* matcher_name, const char* description, + const Interpolations& interp, const Strings& param_values); + +} // namespace internal +} // namespace testing + #define MATCHER(name, description)\ class name##Matcher {\ public:\ template <typename arg_type>\ class gmock_Impl : public ::testing::MatcherInterface<arg_type> {\ public:\ - gmock_Impl() {}\ + gmock_Impl(const ::testing::internal::Interpolations& gmock_interp)\ + : gmock_interp_(gmock_interp) {}\ virtual bool Matches(arg_type arg) const;\ - virtual void DescribeTo(::std::ostream* os) const {\ - *os << ::testing::internal::ConvertIdentifierNameToWords(#name);\ + virtual void DescribeTo(::std::ostream* gmock_os) const {\ + const ::testing::internal::Strings& gmock_printed_params = \ + ::testing::internal::UniversalTersePrintTupleFieldsToStrings(\ + ::std::tr1::tuple<>());\ + *gmock_os << ::testing::internal::FormatMatcherDescription(\ + #name, description, gmock_interp_, gmock_printed_params);\ }\ + const ::testing::internal::Interpolations gmock_interp_;\ };\ template <typename arg_type>\ operator ::testing::Matcher<arg_type>() const {\ - return ::testing::Matcher<arg_type>(new gmock_Impl<arg_type>());\ + return ::testing::Matcher<arg_type>(\ + new gmock_Impl<arg_type>(gmock_interp_));\ }\ name##Matcher() {\ - ::testing::internal::ValidateMatcherDescription(description);\ + const char* gmock_param_names[] = { NULL };\ + gmock_interp_ = ::testing::internal::ValidateMatcherDescription(\ + gmock_param_names, ("" description ""));\ }\ + ::testing::internal::Interpolations gmock_interp_;\ };\ inline name##Matcher name() {\ return name##Matcher();\ @@ -830,23 +915,32 @@ ElementsAreArray(const T (&array)[N]) { template <typename arg_type>\ class gmock_Impl : public ::testing::MatcherInterface<arg_type> {\ public:\ - explicit gmock_Impl(p0##_type gmock_p0) : p0(gmock_p0) {}\ + explicit gmock_Impl(p0##_type gmock_p0, \ + const ::testing::internal::Interpolations& gmock_interp)\ + : p0(gmock_p0), gmock_interp_(gmock_interp) {}\ virtual bool Matches(arg_type arg) const;\ - virtual void DescribeTo(::std::ostream* os) const {\ - *os << ::testing::internal::ConvertIdentifierNameToWords(#name);\ - *os << " ";\ - ::testing::internal::UniversalPrint(p0, os);\ + virtual void DescribeTo(::std::ostream* gmock_os) const {\ + const ::testing::internal::Strings& gmock_printed_params = \ + ::testing::internal::UniversalTersePrintTupleFieldsToStrings(\ + ::std::tr1::tuple<p0##_type>(p0));\ + *gmock_os << ::testing::internal::FormatMatcherDescription(\ + #name, description, gmock_interp_, gmock_printed_params);\ }\ p0##_type p0;\ + const ::testing::internal::Interpolations gmock_interp_;\ };\ template <typename arg_type>\ operator ::testing::Matcher<arg_type>() const {\ - return ::testing::Matcher<arg_type>(new gmock_Impl<arg_type>(p0));\ + return ::testing::Matcher<arg_type>(\ + new gmock_Impl<arg_type>(p0, gmock_interp_));\ }\ name##MatcherP(p0##_type gmock_p0) : p0(gmock_p0) {\ - ::testing::internal::ValidateMatcherDescription(description);\ + const char* gmock_param_names[] = { #p0, NULL };\ + gmock_interp_ = ::testing::internal::ValidateMatcherDescription(\ + gmock_param_names, ("" description ""));\ }\ p0##_type p0;\ + ::testing::internal::Interpolations gmock_interp_;\ };\ template <typename p0##_type>\ inline name##MatcherP<p0##_type> name(p0##_type p0) {\ @@ -864,30 +958,35 @@ ElementsAreArray(const T (&array)[N]) { template <typename arg_type>\ class gmock_Impl : public ::testing::MatcherInterface<arg_type> {\ public:\ - gmock_Impl(p0##_type gmock_p0, p1##_type gmock_p1) : p0(gmock_p0), \ - p1(gmock_p1) {}\ + gmock_Impl(p0##_type gmock_p0, p1##_type gmock_p1, \ + const ::testing::internal::Interpolations& gmock_interp)\ + : p0(gmock_p0), p1(gmock_p1), gmock_interp_(gmock_interp) {}\ virtual bool Matches(arg_type arg) const;\ - virtual void DescribeTo(::std::ostream* os) const {\ - *os << ::testing::internal::ConvertIdentifierNameToWords(#name);\ - *os << " (";\ - ::testing::internal::UniversalPrint(p0, os);\ - *os << ", ";\ - ::testing::internal::UniversalPrint(p1, os);\ - *os << ")";\ + virtual void DescribeTo(::std::ostream* gmock_os) const {\ + const ::testing::internal::Strings& gmock_printed_params = \ + ::testing::internal::UniversalTersePrintTupleFieldsToStrings(\ + ::std::tr1::tuple<p0##_type, p1##_type>(p0, p1));\ + *gmock_os << ::testing::internal::FormatMatcherDescription(\ + #name, description, gmock_interp_, gmock_printed_params);\ }\ p0##_type p0;\ p1##_type p1;\ + const ::testing::internal::Interpolations gmock_interp_;\ };\ template <typename arg_type>\ operator ::testing::Matcher<arg_type>() const {\ - return ::testing::Matcher<arg_type>(new gmock_Impl<arg_type>(p0, p1));\ + return ::testing::Matcher<arg_type>(\ + new gmock_Impl<arg_type>(p0, p1, gmock_interp_));\ }\ name##MatcherP2(p0##_type gmock_p0, p1##_type gmock_p1) : p0(gmock_p0), \ p1(gmock_p1) {\ - ::testing::internal::ValidateMatcherDescription(description);\ + const char* gmock_param_names[] = { #p0, #p1, NULL };\ + gmock_interp_ = ::testing::internal::ValidateMatcherDescription(\ + gmock_param_names, ("" description ""));\ }\ p0##_type p0;\ p1##_type p1;\ + ::testing::internal::Interpolations gmock_interp_;\ };\ template <typename p0##_type, typename p1##_type>\ inline name##MatcherP2<p0##_type, p1##_type> name(p0##_type p0, \ @@ -906,35 +1005,39 @@ ElementsAreArray(const T (&array)[N]) { template <typename arg_type>\ class gmock_Impl : public ::testing::MatcherInterface<arg_type> {\ public:\ - gmock_Impl(p0##_type gmock_p0, p1##_type gmock_p1, \ - p2##_type gmock_p2) : p0(gmock_p0), p1(gmock_p1), p2(gmock_p2) {}\ + gmock_Impl(p0##_type gmock_p0, p1##_type gmock_p1, p2##_type gmock_p2, \ + const ::testing::internal::Interpolations& gmock_interp)\ + : p0(gmock_p0), p1(gmock_p1), p2(gmock_p2), \ + gmock_interp_(gmock_interp) {}\ virtual bool Matches(arg_type arg) const;\ - virtual void DescribeTo(::std::ostream* os) const {\ - *os << ::testing::internal::ConvertIdentifierNameToWords(#name);\ - *os << " (";\ - ::testing::internal::UniversalPrint(p0, os);\ - *os << ", ";\ - ::testing::internal::UniversalPrint(p1, os);\ - *os << ", ";\ - ::testing::internal::UniversalPrint(p2, os);\ - *os << ")";\ + virtual void DescribeTo(::std::ostream* gmock_os) const {\ + const ::testing::internal::Strings& gmock_printed_params = \ + ::testing::internal::UniversalTersePrintTupleFieldsToStrings(\ + ::std::tr1::tuple<p0##_type, p1##_type, p2##_type>(p0, p1, \ + p2));\ + *gmock_os << ::testing::internal::FormatMatcherDescription(\ + #name, description, gmock_interp_, gmock_printed_params);\ }\ p0##_type p0;\ p1##_type p1;\ p2##_type p2;\ + const ::testing::internal::Interpolations gmock_interp_;\ };\ template <typename arg_type>\ operator ::testing::Matcher<arg_type>() const {\ - return ::testing::Matcher<arg_type>(new gmock_Impl<arg_type>(p0, p1, \ - p2));\ + return ::testing::Matcher<arg_type>(\ + new gmock_Impl<arg_type>(p0, p1, p2, gmock_interp_));\ }\ name##MatcherP3(p0##_type gmock_p0, p1##_type gmock_p1, \ p2##_type gmock_p2) : p0(gmock_p0), p1(gmock_p1), p2(gmock_p2) {\ - ::testing::internal::ValidateMatcherDescription(description);\ + const char* gmock_param_names[] = { #p0, #p1, #p2, NULL };\ + gmock_interp_ = ::testing::internal::ValidateMatcherDescription(\ + gmock_param_names, ("" description ""));\ }\ p0##_type p0;\ p1##_type p1;\ p2##_type p2;\ + ::testing::internal::Interpolations gmock_interp_;\ };\ template <typename p0##_type, typename p1##_type, typename p2##_type>\ inline name##MatcherP3<p0##_type, p1##_type, p2##_type> name(p0##_type p0, \ @@ -955,40 +1058,42 @@ ElementsAreArray(const T (&array)[N]) { class gmock_Impl : public ::testing::MatcherInterface<arg_type> {\ public:\ gmock_Impl(p0##_type gmock_p0, p1##_type gmock_p1, p2##_type gmock_p2, \ - p3##_type gmock_p3) : p0(gmock_p0), p1(gmock_p1), p2(gmock_p2), \ - p3(gmock_p3) {}\ + p3##_type gmock_p3, \ + const ::testing::internal::Interpolations& gmock_interp)\ + : p0(gmock_p0), p1(gmock_p1), p2(gmock_p2), p3(gmock_p3), \ + gmock_interp_(gmock_interp) {}\ virtual bool Matches(arg_type arg) const;\ - virtual void DescribeTo(::std::ostream* os) const {\ - *os << ::testing::internal::ConvertIdentifierNameToWords(#name);\ - *os << " (";\ - ::testing::internal::UniversalPrint(p0, os);\ - *os << ", ";\ - ::testing::internal::UniversalPrint(p1, os);\ - *os << ", ";\ - ::testing::internal::UniversalPrint(p2, os);\ - *os << ", ";\ - ::testing::internal::UniversalPrint(p3, os);\ - *os << ")";\ + virtual void DescribeTo(::std::ostream* gmock_os) const {\ + const ::testing::internal::Strings& gmock_printed_params = \ + ::testing::internal::UniversalTersePrintTupleFieldsToStrings(\ + ::std::tr1::tuple<p0##_type, p1##_type, p2##_type, \ + p3##_type>(p0, p1, p2, p3));\ + *gmock_os << ::testing::internal::FormatMatcherDescription(\ + #name, description, gmock_interp_, gmock_printed_params);\ }\ p0##_type p0;\ p1##_type p1;\ p2##_type p2;\ p3##_type p3;\ + const ::testing::internal::Interpolations gmock_interp_;\ };\ template <typename arg_type>\ operator ::testing::Matcher<arg_type>() const {\ - return ::testing::Matcher<arg_type>(new gmock_Impl<arg_type>(p0, p1, \ - p2, p3));\ + return ::testing::Matcher<arg_type>(\ + new gmock_Impl<arg_type>(p0, p1, p2, p3, gmock_interp_));\ }\ name##MatcherP4(p0##_type gmock_p0, p1##_type gmock_p1, \ p2##_type gmock_p2, p3##_type gmock_p3) : p0(gmock_p0), p1(gmock_p1), \ p2(gmock_p2), p3(gmock_p3) {\ - ::testing::internal::ValidateMatcherDescription(description);\ + const char* gmock_param_names[] = { #p0, #p1, #p2, #p3, NULL };\ + gmock_interp_ = ::testing::internal::ValidateMatcherDescription(\ + gmock_param_names, ("" description ""));\ }\ p0##_type p0;\ p1##_type p1;\ p2##_type p2;\ p3##_type p3;\ + ::testing::internal::Interpolations gmock_interp_;\ };\ template <typename p0##_type, typename p1##_type, typename p2##_type, \ typename p3##_type>\ @@ -1013,45 +1118,45 @@ ElementsAreArray(const T (&array)[N]) { class gmock_Impl : public ::testing::MatcherInterface<arg_type> {\ public:\ gmock_Impl(p0##_type gmock_p0, p1##_type gmock_p1, p2##_type gmock_p2, \ - p3##_type gmock_p3, p4##_type gmock_p4) : p0(gmock_p0), \ - p1(gmock_p1), p2(gmock_p2), p3(gmock_p3), p4(gmock_p4) {}\ + p3##_type gmock_p3, p4##_type gmock_p4, \ + const ::testing::internal::Interpolations& gmock_interp)\ + : p0(gmock_p0), p1(gmock_p1), p2(gmock_p2), p3(gmock_p3), \ + p4(gmock_p4), gmock_interp_(gmock_interp) {}\ virtual bool Matches(arg_type arg) const;\ - virtual void DescribeTo(::std::ostream* os) const {\ - *os << ::testing::internal::ConvertIdentifierNameToWords(#name);\ - *os << " (";\ - ::testing::internal::UniversalPrint(p0, os);\ - *os << ", ";\ - ::testing::internal::UniversalPrint(p1, os);\ - *os << ", ";\ - ::testing::internal::UniversalPrint(p2, os);\ - *os << ", ";\ - ::testing::internal::UniversalPrint(p3, os);\ - *os << ", ";\ - ::testing::internal::UniversalPrint(p4, os);\ - *os << ")";\ + virtual void DescribeTo(::std::ostream* gmock_os) const {\ + const ::testing::internal::Strings& gmock_printed_params = \ + ::testing::internal::UniversalTersePrintTupleFieldsToStrings(\ + ::std::tr1::tuple<p0##_type, p1##_type, p2##_type, p3##_type, \ + p4##_type>(p0, p1, p2, p3, p4));\ + *gmock_os << ::testing::internal::FormatMatcherDescription(\ + #name, description, gmock_interp_, gmock_printed_params);\ }\ p0##_type p0;\ p1##_type p1;\ p2##_type p2;\ p3##_type p3;\ p4##_type p4;\ + const ::testing::internal::Interpolations gmock_interp_;\ };\ template <typename arg_type>\ operator ::testing::Matcher<arg_type>() const {\ - return ::testing::Matcher<arg_type>(new gmock_Impl<arg_type>(p0, p1, \ - p2, p3, p4));\ + return ::testing::Matcher<arg_type>(\ + new gmock_Impl<arg_type>(p0, p1, p2, p3, p4, gmock_interp_));\ }\ name##MatcherP5(p0##_type gmock_p0, p1##_type gmock_p1, \ p2##_type gmock_p2, p3##_type gmock_p3, \ p4##_type gmock_p4) : p0(gmock_p0), p1(gmock_p1), p2(gmock_p2), \ p3(gmock_p3), p4(gmock_p4) {\ - ::testing::internal::ValidateMatcherDescription(description);\ + const char* gmock_param_names[] = { #p0, #p1, #p2, #p3, #p4, NULL };\ + gmock_interp_ = ::testing::internal::ValidateMatcherDescription(\ + gmock_param_names, ("" description ""));\ }\ p0##_type p0;\ p1##_type p1;\ p2##_type p2;\ p3##_type p3;\ p4##_type p4;\ + ::testing::internal::Interpolations gmock_interp_;\ };\ template <typename p0##_type, typename p1##_type, typename p2##_type, \ typename p3##_type, typename p4##_type>\ @@ -1076,25 +1181,18 @@ ElementsAreArray(const T (&array)[N]) { class gmock_Impl : public ::testing::MatcherInterface<arg_type> {\ public:\ gmock_Impl(p0##_type gmock_p0, p1##_type gmock_p1, p2##_type gmock_p2, \ - p3##_type gmock_p3, p4##_type gmock_p4, \ - p5##_type gmock_p5) : p0(gmock_p0), p1(gmock_p1), p2(gmock_p2), \ - p3(gmock_p3), p4(gmock_p4), p5(gmock_p5) {}\ + p3##_type gmock_p3, p4##_type gmock_p4, p5##_type gmock_p5, \ + const ::testing::internal::Interpolations& gmock_interp)\ + : p0(gmock_p0), p1(gmock_p1), p2(gmock_p2), p3(gmock_p3), \ + p4(gmock_p4), p5(gmock_p5), gmock_interp_(gmock_interp) {}\ virtual bool Matches(arg_type arg) const;\ - virtual void DescribeTo(::std::ostream* os) const {\ - *os << ::testing::internal::ConvertIdentifierNameToWords(#name);\ - *os << " (";\ - ::testing::internal::UniversalPrint(p0, os);\ - *os << ", ";\ - ::testing::internal::UniversalPrint(p1, os);\ - *os << ", ";\ - ::testing::internal::UniversalPrint(p2, os);\ - *os << ", ";\ - ::testing::internal::UniversalPrint(p3, os);\ - *os << ", ";\ - ::testing::internal::UniversalPrint(p4, os);\ - *os << ", ";\ - ::testing::internal::UniversalPrint(p5, os);\ - *os << ")";\ + virtual void DescribeTo(::std::ostream* gmock_os) const {\ + const ::testing::internal::Strings& gmock_printed_params = \ + ::testing::internal::UniversalTersePrintTupleFieldsToStrings(\ + ::std::tr1::tuple<p0##_type, p1##_type, p2##_type, p3##_type, \ + p4##_type, p5##_type>(p0, p1, p2, p3, p4, p5));\ + *gmock_os << ::testing::internal::FormatMatcherDescription(\ + #name, description, gmock_interp_, gmock_printed_params);\ }\ p0##_type p0;\ p1##_type p1;\ @@ -1102,17 +1200,20 @@ ElementsAreArray(const T (&array)[N]) { p3##_type p3;\ p4##_type p4;\ p5##_type p5;\ + const ::testing::internal::Interpolations gmock_interp_;\ };\ template <typename arg_type>\ operator ::testing::Matcher<arg_type>() const {\ - return ::testing::Matcher<arg_type>(new gmock_Impl<arg_type>(p0, p1, \ - p2, p3, p4, p5));\ + return ::testing::Matcher<arg_type>(\ + new gmock_Impl<arg_type>(p0, p1, p2, p3, p4, p5, gmock_interp_));\ }\ name##MatcherP6(p0##_type gmock_p0, p1##_type gmock_p1, \ p2##_type gmock_p2, p3##_type gmock_p3, p4##_type gmock_p4, \ p5##_type gmock_p5) : p0(gmock_p0), p1(gmock_p1), p2(gmock_p2), \ p3(gmock_p3), p4(gmock_p4), p5(gmock_p5) {\ - ::testing::internal::ValidateMatcherDescription(description);\ + const char* gmock_param_names[] = { #p0, #p1, #p2, #p3, #p4, #p5, NULL };\ + gmock_interp_ = ::testing::internal::ValidateMatcherDescription(\ + gmock_param_names, ("" description ""));\ }\ p0##_type p0;\ p1##_type p1;\ @@ -1120,6 +1221,7 @@ ElementsAreArray(const T (&array)[N]) { p3##_type p3;\ p4##_type p4;\ p5##_type p5;\ + ::testing::internal::Interpolations gmock_interp_;\ };\ template <typename p0##_type, typename p1##_type, typename p2##_type, \ typename p3##_type, typename p4##_type, typename p5##_type>\ @@ -1147,26 +1249,20 @@ ElementsAreArray(const T (&array)[N]) { public:\ gmock_Impl(p0##_type gmock_p0, p1##_type gmock_p1, p2##_type gmock_p2, \ p3##_type gmock_p3, p4##_type gmock_p4, p5##_type gmock_p5, \ - p6##_type gmock_p6) : p0(gmock_p0), p1(gmock_p1), p2(gmock_p2), \ - p3(gmock_p3), p4(gmock_p4), p5(gmock_p5), p6(gmock_p6) {}\ + p6##_type gmock_p6, \ + const ::testing::internal::Interpolations& gmock_interp)\ + : p0(gmock_p0), p1(gmock_p1), p2(gmock_p2), p3(gmock_p3), \ + p4(gmock_p4), p5(gmock_p5), p6(gmock_p6), \ + gmock_interp_(gmock_interp) {}\ virtual bool Matches(arg_type arg) const;\ - virtual void DescribeTo(::std::ostream* os) const {\ - *os << ::testing::internal::ConvertIdentifierNameToWords(#name);\ - *os << " (";\ - ::testing::internal::UniversalPrint(p0, os);\ - *os << ", ";\ - ::testing::internal::UniversalPrint(p1, os);\ - *os << ", ";\ - ::testing::internal::UniversalPrint(p2, os);\ - *os << ", ";\ - ::testing::internal::UniversalPrint(p3, os);\ - *os << ", ";\ - ::testing::internal::UniversalPrint(p4, os);\ - *os << ", ";\ - ::testing::internal::UniversalPrint(p5, os);\ - *os << ", ";\ - ::testing::internal::UniversalPrint(p6, os);\ - *os << ")";\ + virtual void DescribeTo(::std::ostream* gmock_os) const {\ + const ::testing::internal::Strings& gmock_printed_params = \ + ::testing::internal::UniversalTersePrintTupleFieldsToStrings(\ + ::std::tr1::tuple<p0##_type, p1##_type, p2##_type, p3##_type, \ + p4##_type, p5##_type, p6##_type>(p0, p1, p2, p3, p4, p5, \ + p6));\ + *gmock_os << ::testing::internal::FormatMatcherDescription(\ + #name, description, gmock_interp_, gmock_printed_params);\ }\ p0##_type p0;\ p1##_type p1;\ @@ -1175,18 +1271,22 @@ ElementsAreArray(const T (&array)[N]) { p4##_type p4;\ p5##_type p5;\ p6##_type p6;\ + const ::testing::internal::Interpolations gmock_interp_;\ };\ template <typename arg_type>\ operator ::testing::Matcher<arg_type>() const {\ - return ::testing::Matcher<arg_type>(new gmock_Impl<arg_type>(p0, p1, \ - p2, p3, p4, p5, p6));\ + return ::testing::Matcher<arg_type>(\ + new gmock_Impl<arg_type>(p0, p1, p2, p3, p4, p5, p6, gmock_interp_));\ }\ name##MatcherP7(p0##_type gmock_p0, p1##_type gmock_p1, \ p2##_type gmock_p2, p3##_type gmock_p3, p4##_type gmock_p4, \ p5##_type gmock_p5, p6##_type gmock_p6) : p0(gmock_p0), p1(gmock_p1), \ p2(gmock_p2), p3(gmock_p3), p4(gmock_p4), p5(gmock_p5), \ p6(gmock_p6) {\ - ::testing::internal::ValidateMatcherDescription(description);\ + const char* gmock_param_names[] = { #p0, #p1, #p2, #p3, #p4, #p5, #p6, \ + NULL };\ + gmock_interp_ = ::testing::internal::ValidateMatcherDescription(\ + gmock_param_names, ("" description ""));\ }\ p0##_type p0;\ p1##_type p1;\ @@ -1195,6 +1295,7 @@ ElementsAreArray(const T (&array)[N]) { p4##_type p4;\ p5##_type p5;\ p6##_type p6;\ + ::testing::internal::Interpolations gmock_interp_;\ };\ template <typename p0##_type, typename p1##_type, typename p2##_type, \ typename p3##_type, typename p4##_type, typename p5##_type, \ @@ -1225,29 +1326,20 @@ ElementsAreArray(const T (&array)[N]) { public:\ gmock_Impl(p0##_type gmock_p0, p1##_type gmock_p1, p2##_type gmock_p2, \ p3##_type gmock_p3, p4##_type gmock_p4, p5##_type gmock_p5, \ - p6##_type gmock_p6, p7##_type gmock_p7) : p0(gmock_p0), \ - p1(gmock_p1), p2(gmock_p2), p3(gmock_p3), p4(gmock_p4), \ - p5(gmock_p5), p6(gmock_p6), p7(gmock_p7) {}\ + p6##_type gmock_p6, p7##_type gmock_p7, \ + const ::testing::internal::Interpolations& gmock_interp)\ + : p0(gmock_p0), p1(gmock_p1), p2(gmock_p2), p3(gmock_p3), \ + p4(gmock_p4), p5(gmock_p5), p6(gmock_p6), p7(gmock_p7), \ + gmock_interp_(gmock_interp) {}\ virtual bool Matches(arg_type arg) const;\ - virtual void DescribeTo(::std::ostream* os) const {\ - *os << ::testing::internal::ConvertIdentifierNameToWords(#name);\ - *os << " (";\ - ::testing::internal::UniversalPrint(p0, os);\ - *os << ", ";\ - ::testing::internal::UniversalPrint(p1, os);\ - *os << ", ";\ - ::testing::internal::UniversalPrint(p2, os);\ - *os << ", ";\ - ::testing::internal::UniversalPrint(p3, os);\ - *os << ", ";\ - ::testing::internal::UniversalPrint(p4, os);\ - *os << ", ";\ - ::testing::internal::UniversalPrint(p5, os);\ - *os << ", ";\ - ::testing::internal::UniversalPrint(p6, os);\ - *os << ", ";\ - ::testing::internal::UniversalPrint(p7, os);\ - *os << ")";\ + virtual void DescribeTo(::std::ostream* gmock_os) const {\ + const ::testing::internal::Strings& gmock_printed_params = \ + ::testing::internal::UniversalTersePrintTupleFieldsToStrings(\ + ::std::tr1::tuple<p0##_type, p1##_type, p2##_type, p3##_type, \ + p4##_type, p5##_type, p6##_type, p7##_type>(p0, p1, p2, \ + p3, p4, p5, p6, p7));\ + *gmock_os << ::testing::internal::FormatMatcherDescription(\ + #name, description, gmock_interp_, gmock_printed_params);\ }\ p0##_type p0;\ p1##_type p1;\ @@ -1257,11 +1349,13 @@ ElementsAreArray(const T (&array)[N]) { p5##_type p5;\ p6##_type p6;\ p7##_type p7;\ + const ::testing::internal::Interpolations gmock_interp_;\ };\ template <typename arg_type>\ operator ::testing::Matcher<arg_type>() const {\ - return ::testing::Matcher<arg_type>(new gmock_Impl<arg_type>(p0, p1, \ - p2, p3, p4, p5, p6, p7));\ + return ::testing::Matcher<arg_type>(\ + new gmock_Impl<arg_type>(p0, p1, p2, p3, p4, p5, p6, p7, \ + gmock_interp_));\ }\ name##MatcherP8(p0##_type gmock_p0, p1##_type gmock_p1, \ p2##_type gmock_p2, p3##_type gmock_p3, p4##_type gmock_p4, \ @@ -1269,7 +1363,10 @@ ElementsAreArray(const T (&array)[N]) { p7##_type gmock_p7) : p0(gmock_p0), p1(gmock_p1), p2(gmock_p2), \ p3(gmock_p3), p4(gmock_p4), p5(gmock_p5), p6(gmock_p6), \ p7(gmock_p7) {\ - ::testing::internal::ValidateMatcherDescription(description);\ + const char* gmock_param_names[] = { #p0, #p1, #p2, #p3, #p4, #p5, #p6, \ + #p7, NULL };\ + gmock_interp_ = ::testing::internal::ValidateMatcherDescription(\ + gmock_param_names, ("" description ""));\ }\ p0##_type p0;\ p1##_type p1;\ @@ -1279,6 +1376,7 @@ ElementsAreArray(const T (&array)[N]) { p5##_type p5;\ p6##_type p6;\ p7##_type p7;\ + ::testing::internal::Interpolations gmock_interp_;\ };\ template <typename p0##_type, typename p1##_type, typename p2##_type, \ typename p3##_type, typename p4##_type, typename p5##_type, \ @@ -1310,32 +1408,20 @@ ElementsAreArray(const T (&array)[N]) { public:\ gmock_Impl(p0##_type gmock_p0, p1##_type gmock_p1, p2##_type gmock_p2, \ p3##_type gmock_p3, p4##_type gmock_p4, p5##_type gmock_p5, \ - p6##_type gmock_p6, p7##_type gmock_p7, \ - p8##_type gmock_p8) : p0(gmock_p0), p1(gmock_p1), p2(gmock_p2), \ - p3(gmock_p3), p4(gmock_p4), p5(gmock_p5), p6(gmock_p6), \ - p7(gmock_p7), p8(gmock_p8) {}\ + p6##_type gmock_p6, p7##_type gmock_p7, p8##_type gmock_p8, \ + const ::testing::internal::Interpolations& gmock_interp)\ + : p0(gmock_p0), p1(gmock_p1), p2(gmock_p2), p3(gmock_p3), \ + p4(gmock_p4), p5(gmock_p5), p6(gmock_p6), p7(gmock_p7), \ + p8(gmock_p8), gmock_interp_(gmock_interp) {}\ virtual bool Matches(arg_type arg) const;\ - virtual void DescribeTo(::std::ostream* os) const {\ - *os << ::testing::internal::ConvertIdentifierNameToWords(#name);\ - *os << " (";\ - ::testing::internal::UniversalPrint(p0, os);\ - *os << ", ";\ - ::testing::internal::UniversalPrint(p1, os);\ - *os << ", ";\ - ::testing::internal::UniversalPrint(p2, os);\ - *os << ", ";\ - ::testing::internal::UniversalPrint(p3, os);\ - *os << ", ";\ - ::testing::internal::UniversalPrint(p4, os);\ - *os << ", ";\ - ::testing::internal::UniversalPrint(p5, os);\ - *os << ", ";\ - ::testing::internal::UniversalPrint(p6, os);\ - *os << ", ";\ - ::testing::internal::UniversalPrint(p7, os);\ - *os << ", ";\ - ::testing::internal::UniversalPrint(p8, os);\ - *os << ")";\ + virtual void DescribeTo(::std::ostream* gmock_os) const {\ + const ::testing::internal::Strings& gmock_printed_params = \ + ::testing::internal::UniversalTersePrintTupleFieldsToStrings(\ + ::std::tr1::tuple<p0##_type, p1##_type, p2##_type, p3##_type, \ + p4##_type, p5##_type, p6##_type, p7##_type, \ + p8##_type>(p0, p1, p2, p3, p4, p5, p6, p7, p8));\ + *gmock_os << ::testing::internal::FormatMatcherDescription(\ + #name, description, gmock_interp_, gmock_printed_params);\ }\ p0##_type p0;\ p1##_type p1;\ @@ -1346,11 +1432,13 @@ ElementsAreArray(const T (&array)[N]) { p6##_type p6;\ p7##_type p7;\ p8##_type p8;\ + const ::testing::internal::Interpolations gmock_interp_;\ };\ template <typename arg_type>\ operator ::testing::Matcher<arg_type>() const {\ - return ::testing::Matcher<arg_type>(new gmock_Impl<arg_type>(p0, p1, \ - p2, p3, p4, p5, p6, p7, p8));\ + return ::testing::Matcher<arg_type>(\ + new gmock_Impl<arg_type>(p0, p1, p2, p3, p4, p5, p6, p7, p8, \ + gmock_interp_));\ }\ name##MatcherP9(p0##_type gmock_p0, p1##_type gmock_p1, \ p2##_type gmock_p2, p3##_type gmock_p3, p4##_type gmock_p4, \ @@ -1358,7 +1446,10 @@ ElementsAreArray(const T (&array)[N]) { p8##_type gmock_p8) : p0(gmock_p0), p1(gmock_p1), p2(gmock_p2), \ p3(gmock_p3), p4(gmock_p4), p5(gmock_p5), p6(gmock_p6), p7(gmock_p7), \ p8(gmock_p8) {\ - ::testing::internal::ValidateMatcherDescription(description);\ + const char* gmock_param_names[] = { #p0, #p1, #p2, #p3, #p4, #p5, #p6, \ + #p7, #p8, NULL };\ + gmock_interp_ = ::testing::internal::ValidateMatcherDescription(\ + gmock_param_names, ("" description ""));\ }\ p0##_type p0;\ p1##_type p1;\ @@ -1369,6 +1460,7 @@ ElementsAreArray(const T (&array)[N]) { p6##_type p6;\ p7##_type p7;\ p8##_type p8;\ + ::testing::internal::Interpolations gmock_interp_;\ };\ template <typename p0##_type, typename p1##_type, typename p2##_type, \ typename p3##_type, typename p4##_type, typename p5##_type, \ @@ -1403,33 +1495,20 @@ ElementsAreArray(const T (&array)[N]) { gmock_Impl(p0##_type gmock_p0, p1##_type gmock_p1, p2##_type gmock_p2, \ p3##_type gmock_p3, p4##_type gmock_p4, p5##_type gmock_p5, \ p6##_type gmock_p6, p7##_type gmock_p7, p8##_type gmock_p8, \ - p9##_type gmock_p9) : p0(gmock_p0), p1(gmock_p1), p2(gmock_p2), \ - p3(gmock_p3), p4(gmock_p4), p5(gmock_p5), p6(gmock_p6), \ - p7(gmock_p7), p8(gmock_p8), p9(gmock_p9) {}\ + p9##_type gmock_p9, \ + const ::testing::internal::Interpolations& gmock_interp)\ + : p0(gmock_p0), p1(gmock_p1), p2(gmock_p2), p3(gmock_p3), \ + p4(gmock_p4), p5(gmock_p5), p6(gmock_p6), p7(gmock_p7), \ + p8(gmock_p8), p9(gmock_p9), gmock_interp_(gmock_interp) {}\ virtual bool Matches(arg_type arg) const;\ - virtual void DescribeTo(::std::ostream* os) const {\ - *os << ::testing::internal::ConvertIdentifierNameToWords(#name);\ - *os << " (";\ - ::testing::internal::UniversalPrint(p0, os);\ - *os << ", ";\ - ::testing::internal::UniversalPrint(p1, os);\ - *os << ", ";\ - ::testing::internal::UniversalPrint(p2, os);\ - *os << ", ";\ - ::testing::internal::UniversalPrint(p3, os);\ - *os << ", ";\ - ::testing::internal::UniversalPrint(p4, os);\ - *os << ", ";\ - ::testing::internal::UniversalPrint(p5, os);\ - *os << ", ";\ - ::testing::internal::UniversalPrint(p6, os);\ - *os << ", ";\ - ::testing::internal::UniversalPrint(p7, os);\ - *os << ", ";\ - ::testing::internal::UniversalPrint(p8, os);\ - *os << ", ";\ - ::testing::internal::UniversalPrint(p9, os);\ - *os << ")";\ + virtual void DescribeTo(::std::ostream* gmock_os) const {\ + const ::testing::internal::Strings& gmock_printed_params = \ + ::testing::internal::UniversalTersePrintTupleFieldsToStrings(\ + ::std::tr1::tuple<p0##_type, p1##_type, p2##_type, p3##_type, \ + p4##_type, p5##_type, p6##_type, p7##_type, p8##_type, \ + p9##_type>(p0, p1, p2, p3, p4, p5, p6, p7, p8, p9));\ + *gmock_os << ::testing::internal::FormatMatcherDescription(\ + #name, description, gmock_interp_, gmock_printed_params);\ }\ p0##_type p0;\ p1##_type p1;\ @@ -1441,11 +1520,13 @@ ElementsAreArray(const T (&array)[N]) { p7##_type p7;\ p8##_type p8;\ p9##_type p9;\ + const ::testing::internal::Interpolations gmock_interp_;\ };\ template <typename arg_type>\ operator ::testing::Matcher<arg_type>() const {\ - return ::testing::Matcher<arg_type>(new gmock_Impl<arg_type>(p0, p1, \ - p2, p3, p4, p5, p6, p7, p8, p9));\ + return ::testing::Matcher<arg_type>(\ + new gmock_Impl<arg_type>(p0, p1, p2, p3, p4, p5, p6, p7, p8, p9, \ + gmock_interp_));\ }\ name##MatcherP10(p0##_type gmock_p0, p1##_type gmock_p1, \ p2##_type gmock_p2, p3##_type gmock_p3, p4##_type gmock_p4, \ @@ -1453,7 +1534,10 @@ ElementsAreArray(const T (&array)[N]) { p8##_type gmock_p8, p9##_type gmock_p9) : p0(gmock_p0), p1(gmock_p1), \ p2(gmock_p2), p3(gmock_p3), p4(gmock_p4), p5(gmock_p5), p6(gmock_p6), \ p7(gmock_p7), p8(gmock_p8), p9(gmock_p9) {\ - ::testing::internal::ValidateMatcherDescription(description);\ + const char* gmock_param_names[] = { #p0, #p1, #p2, #p3, #p4, #p5, #p6, \ + #p7, #p8, #p9, NULL };\ + gmock_interp_ = ::testing::internal::ValidateMatcherDescription(\ + gmock_param_names, ("" description ""));\ }\ p0##_type p0;\ p1##_type p1;\ @@ -1465,6 +1549,7 @@ ElementsAreArray(const T (&array)[N]) { p7##_type p7;\ p8##_type p8;\ p9##_type p9;\ + ::testing::internal::Interpolations gmock_interp_;\ };\ template <typename p0##_type, typename p1##_type, typename p2##_type, \ typename p3##_type, typename p4##_type, typename p5##_type, \ diff --git a/include/gmock/gmock-generated-matchers.h.pump b/include/gmock/gmock-generated-matchers.h.pump index 8fd79196..31be698f 100644 --- a/include/gmock/gmock-generated-matchers.h.pump +++ b/include/gmock/gmock-generated-matchers.h.pump @@ -43,18 +43,11 @@ $var n = 10 $$ The maximum arity we support. #include <string> #include <vector> #include <gmock/gmock-matchers.h> +#include <gmock/gmock-printers.h> namespace testing { namespace internal { -// Generates a non-fatal failure iff 'description' is not a valid -// matcher description. -inline void ValidateMatcherDescription(const char* description) { - EXPECT_STREQ("", description) - << "The description string in a MATCHER*() macro must be \"\" " - "at this moment. We will implement custom description string soon."; -} - // Implements ElementsAre() and ElementsAreArray(). template <typename Container> class ElementsAreMatcherImpl : public MatcherInterface<Container> { @@ -310,6 +303,9 @@ ElementsAreArray(const T (&array)[N]) { } } // namespace testing +$$ } // This Pump meta comment fixes auto-indentation in Emacs. It will not +$$ // show up in the generated code. + // The MATCHER* family of macros can be used in a namespace scope to // define custom matchers easily. The syntax: @@ -318,10 +314,18 @@ ElementsAreArray(const T (&array)[N]) { // // will define a matcher with the given name that executes the // statements, which must return a bool to indicate if the match -// succeeds. For now, the description_string must be "", but we'll -// allow other values soon. Inside the statements, you can refer to -// the value being matched by 'arg', and refer to its type by -// 'arg_type'. For example: +// succeeds. Inside the statements, you can refer to the value being +// matched by 'arg', and refer to its type by 'arg_type'. +// +// The description string documents what the matcher does, and is used +// to generate the failure message when the match fails. Since a +// MATCHER() is usually defined in a header file shared by multiple +// C++ source files, we require the description to be a C-string +// literal to avoid possible side effects. It can be empty, in which +// case we'll use the sequence of words in the matcher name as the +// description. +// +// For example: // // MATCHER(IsEven, "") { return (arg % 2) == 0; } // @@ -384,6 +388,38 @@ ElementsAreArray(const T (&array)[N]) { // We also provide MATCHER_P2, MATCHER_P3, ..., up to MATCHER_P$n to // support multi-parameter matchers. // +// When defining a parameterized matcher, you can use Python-style +// interpolations in the description string to refer to the parameter +// values. We support the following syntax currently: +// +// %% a single '%' character +// %(*)s all parameters of the matcher printed as a tuple +// %(foo)s value of the matcher parameter named 'foo' +// +// For example, +// +// MATCHER_P2(InClosedRange, low, hi, "is in range [%(low)s, %(hi)s]") { +// return low <= arg && arg <= hi; +// } +// ... +// EXPECT_THAT(3, InClosedRange(4, 6)); +// +// would generate a failure that contains the message: +// +// Expected: is in range [4, 6] +// +// If you specify "" as the description, the failure message will +// contain the sequence of words in the matcher name followed by the +// parameter values printed as a tuple. For example, +// +// MATCHER_P2(InClosedRange, low, hi, "") { ... } +// ... +// EXPECT_THAT(3, InClosedRange(4, 6)); +// +// would generate a failure that contains the text: +// +// Expected: in closed range (4, 6) +// // For the purpose of typing, you can view // // MATCHER_Pk(Foo, p1, ..., pk, description_string) { ... } @@ -440,6 +476,48 @@ ElementsAreArray(const T (&array)[N]) { // To learn more about using these macros, please search for 'MATCHER' // on http://code.google.com/p/googlemock/wiki/CookBook. +namespace testing { +namespace internal { + +// Constants denoting interpolations in a matcher description string. +const int kTupleInterpolation = -1; // "%(*)s" +const int kPercentInterpolation = -2; // "%%" +const int kInvalidInterpolation = -3; // "%" followed by invalid text + +// Records the location and content of an interpolation. +struct Interpolation { + Interpolation(const char* start, const char* end, int param) + : start_pos(start), end_pos(end), param_index(param) {} + + // Points to the start of the interpolation (the '%' character). + const char* start_pos; + // Points to the first character after the interpolation. + const char* end_pos; + // 0-based index of the interpolated matcher parameter; + // kTupleInterpolation for "%(*)s"; kPercentInterpolation for "%%". + int param_index; +}; + +typedef ::std::vector<Interpolation> Interpolations; + +// Parses a matcher description string and returns a vector of +// interpolations that appear in the string; generates non-fatal +// failures iff 'description' is an invalid matcher description. +// 'param_names' is a NULL-terminated array of parameter names in the +// order they appear in the MATCHER_P*() parameter list. +Interpolations ValidateMatcherDescription( + const char* param_names[], const char* description); + +// Returns the actual matcher description, given the matcher name, +// user-supplied description template string, interpolations in the +// string, and the printed values of the matcher parameters. +string FormatMatcherDescription( + const char* matcher_name, const char* description, + const Interpolations& interp, const Strings& param_values); + +} // namespace internal +} // namespace testing + $range i 0..n $for i @@ -454,7 +532,11 @@ $var template = [[$if i==0 [[]] $else [[ template <$for j, [[typename p$j##_type]]>\ ]]]] $var ctor_param_list = [[$for j, [[p$j##_type gmock_p$j]]]] +$var impl_ctor_param_list = [[$for j [[p$j##_type gmock_p$j, ]] +const ::testing::internal::Interpolations& gmock_interp]] +$var impl_inits = [[ : $for j [[p$j(gmock_p$j), ]]gmock_interp_(gmock_interp)]] $var inits = [[$if i==0 [[]] $else [[ : $for j, [[p$j(gmock_p$j)]]]]]] +$var params_and_interp = [[$for j [[p$j, ]]gmock_interp_]] $var params = [[$for j, [[p$j]]]] $var param_types = [[$if i==0 [[]] $else [[<$for j, [[p$j##_type]]>]]]] $var param_types_and_names = [[$for j, [[p$j##_type p$j]]]] @@ -475,34 +557,29 @@ $var param_field_decls2 = [[$for j template <typename arg_type>\ class gmock_Impl : public ::testing::MatcherInterface<arg_type> {\ public:\ - [[$if i==1 [[explicit ]]]]gmock_Impl($ctor_param_list)$inits {}\ + [[$if i==1 [[explicit ]]]]gmock_Impl($impl_ctor_param_list)\ + $impl_inits {}\ virtual bool Matches(arg_type arg) const;\ - virtual void DescribeTo(::std::ostream* os) const {\ - *os << ::testing::internal::ConvertIdentifierNameToWords(#name);\ -[[$if i==1 [[ *os << " ";\ - ::testing::internal::UniversalPrint(p0, os);\ - -]] $elif i>=2 [[ *os << " (";\ - ::testing::internal::UniversalPrint(p0, os);\ -$range k 1..i-1 -$for k [[ - - *os << ", ";\ - ::testing::internal::UniversalPrint(p$k, os);\ -]] - - *os << ")";\ - -]]]] + virtual void DescribeTo(::std::ostream* gmock_os) const {\ + const ::testing::internal::Strings& gmock_printed_params = \ + ::testing::internal::UniversalTersePrintTupleFieldsToStrings(\ + ::std::tr1::tuple<$for j, [[p$j##_type]]>($for j, [[p$j]]));\ + *gmock_os << ::testing::internal::FormatMatcherDescription(\ + #name, description, gmock_interp_, gmock_printed_params);\ }\$param_field_decls + const ::testing::internal::Interpolations gmock_interp_;\ };\ template <typename arg_type>\ operator ::testing::Matcher<arg_type>() const {\ - return ::testing::Matcher<arg_type>(new gmock_Impl<arg_type>($params));\ + return ::testing::Matcher<arg_type>(\ + new gmock_Impl<arg_type>($params_and_interp));\ }\ $class_name($ctor_param_list)$inits {\ - ::testing::internal::ValidateMatcherDescription(description);\ + const char* gmock_param_names[] = { $for j [[#p$j, ]]NULL };\ + gmock_interp_ = ::testing::internal::ValidateMatcherDescription(\ + gmock_param_names, ("" description ""));\ }\$param_field_decls2 + ::testing::internal::Interpolations gmock_interp_;\ };\$template inline $class_name$param_types name($param_types_and_names) {\ return $class_name$param_types($params);\ diff --git a/include/gmock/gmock-printers.h b/include/gmock/gmock-printers.h index 5cd5f12e..28e904c3 100644 --- a/include/gmock/gmock-printers.h +++ b/include/gmock/gmock-printers.h @@ -41,22 +41,36 @@ // type Foo by defining either operator<<(::std::ostream&, const Foo&) // or void PrintTo(const Foo&, ::std::ostream*) in the namespace that // defines Foo. If both are defined, PrintTo() takes precedence. -// When T is a reference type, the address of the value is also +// +// To aid debugging: when T is a reference type, the address of the +// value is also printed; when T is a (const) char pointer, both the +// pointer value and the NUL-terminated string it points to are // printed. // // We also provide some convenient wrappers: // -// // Prints to a string. -// string ::testing::internal::UniversalPrinter<T>::PrintAsString(value); -// // Prints a value using its inferred type. -// void ::testing::internal::UniversalPrint(const T& value, ostream*); +// // Prints a value as the given type to a string. +// string ::testing::internal::UniversalPrinter<T>::PrintToString(value); +// +// // Prints a value tersely: for a reference type, the referenced +// // value (but not the address) is printed; for a (const) char +// // pointer, the NUL-terminated string (but not the pointer) is +// // printed. +// void ::testing::internal::UniversalTersePrint(const T& value, ostream*); +// +// // Prints the fields of a tuple tersely to a string vector, one +// // element for each field. +// std::vector<string> UniversalTersePrintTupleFieldsToStrings( +// const Tuple& value); #ifndef GMOCK_INCLUDE_GMOCK_GMOCK_PRINTERS_H_ #define GMOCK_INCLUDE_GMOCK_GMOCK_PRINTERS_H_ #include <ostream> // NOLINT +#include <sstream> #include <string> #include <utility> +#include <vector> #include <gmock/internal/gmock-internal-utils.h> #include <gmock/internal/gmock-port.h> @@ -350,13 +364,19 @@ inline void PrintTo(const ::std::wstring& s, ::std::ostream* os) { // Overload for ::std::tr1::tuple. Needed for printing function // arguments, which are packed as tuples. -// This helper template allows PrintTo() for tuples to be defined by +typedef ::std::vector<string> Strings; + +// This helper template allows PrintTo() for tuples and +// UniversalTersePrintTupleFieldsToStrings() to be defined by // induction on the number of tuple fields. The idea is that // TuplePrefixPrinter<N>::PrintPrefixTo(t, os) prints the first N // fields in tuple t, and can be defined in terms of // TuplePrefixPrinter<N - 1>. + +// The inductive case. template <size_t N> struct TuplePrefixPrinter { + // Prints the first N fields of a tuple. template <typename Tuple> static void PrintPrefixTo(const Tuple& t, ::std::ostream* os) { TuplePrefixPrinter<N - 1>::PrintPrefixTo(t, os); @@ -364,20 +384,33 @@ struct TuplePrefixPrinter { UniversalPrinter<typename ::std::tr1::tuple_element<N - 1, Tuple>::type> ::Print(::std::tr1::get<N - 1>(t), os); } + + // Tersely prints the first N fields of a tuple to a string vector, + // one element for each field. + template <typename Tuple> + static void TersePrintPrefixToStrings(const Tuple& t, Strings* strings) { + TuplePrefixPrinter<N - 1>::TersePrintPrefixToStrings(t, strings); + ::std::stringstream ss; + UniversalTersePrint(::std::tr1::get<N - 1>(t), &ss); + strings->push_back(ss.str()); + } }; + +// Base cases. template <> struct TuplePrefixPrinter<0> { template <typename Tuple> static void PrintPrefixTo(const Tuple&, ::std::ostream*) {} -}; -template <> -struct TuplePrefixPrinter<1> { + template <typename Tuple> - static void PrintPrefixTo(const Tuple& t, ::std::ostream* os) { - UniversalPrinter<typename ::std::tr1::tuple_element<0, Tuple>::type>:: - Print(::std::tr1::get<0>(t), os); - } + static void TersePrintPrefixToStrings(const Tuple&, Strings*) {} }; +template <> +template <typename Tuple> +void TuplePrefixPrinter<1>::PrintPrefixTo(const Tuple& t, ::std::ostream* os) { + UniversalPrinter<typename ::std::tr1::tuple_element<0, Tuple>::type>:: + Print(::std::tr1::get<0>(t), os); +} // Helper function for printing a tuple. T must be instantiated with // a tuple type. @@ -499,7 +532,7 @@ class UniversalPrinter { // A convenient wrapper for Print() that returns the print-out as a // string. - static string PrintAsString(const T& value) { + static string PrintToString(const T& value) { ::std::stringstream ss; Print(value, &ss); return ss.str(); @@ -548,7 +581,7 @@ class UniversalPrinter<T[N]> { // A convenient wrapper for Print() that returns the print-out as a // string. - static string PrintAsString(const T (&a)[N]) { + static string PrintToString(const T (&a)[N]) { ::std::stringstream ss; Print(a, &ss); return ss.str(); @@ -577,7 +610,7 @@ class UniversalPrinter<T&> { // A convenient wrapper for Print() that returns the print-out as a // string. - static string PrintAsString(const T& value) { + static string PrintToString(const T& value) { ::std::stringstream ss; Print(value, &ss); return ss.str(); @@ -588,15 +621,34 @@ class UniversalPrinter<T&> { #endif // _MSC_VER }; -// Prints a value using its inferred type. In particular, if the -// original type of the value is a reference, the *referenced* type -// (as opposed to the reference type) will be used, as C++ doesn't -// infer reference types. This is useful when you just want to know -// what the value is and don't care if it's a reference or not. +// Prints a value tersely: for a reference type, the referenced value +// (but not the address) is printed; for a (const) char pointer, the +// NUL-terminated string (but not the pointer) is printed. template <typename T> -void UniversalPrint(const T& value, ::std::ostream* os) { +void UniversalTersePrint(const T& value, ::std::ostream* os) { UniversalPrinter<T>::Print(value, os); } +inline void UniversalTersePrint(const char* str, ::std::ostream* os) { + if (str == NULL) { + *os << "NULL"; + } else { + UniversalPrinter<string>::Print(string(str), os); + } +} +inline void UniversalTersePrint(char* str, ::std::ostream* os) { + UniversalTersePrint(static_cast<const char*>(str), os); +} + +// Prints the fields of a tuple tersely to a string vector, one +// element for each field. See the comment before +// UniversalTersePrint() for how we define "tersely". +template <typename Tuple> +Strings UniversalTersePrintTupleFieldsToStrings(const Tuple& value) { + Strings result; + TuplePrefixPrinter< ::std::tr1::tuple_size<Tuple>::value>:: + TersePrintPrefixToStrings(value, &result); + return result; +} } // namespace internal } // namespace testing |