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      1 // Protocol Buffers - Google's data interchange format
      2 // Copyright 2008 Google Inc.  All rights reserved.
      3 // http://code.google.com/p/protobuf/
      4 //
      5 // Redistribution and use in source and binary forms, with or without
      6 // modification, are permitted provided that the following conditions are
      7 // met:
      8 //
      9 //     * Redistributions of source code must retain the above copyright
     10 // notice, this list of conditions and the following disclaimer.
     11 //     * Redistributions in binary form must reproduce the above
     12 // copyright notice, this list of conditions and the following disclaimer
     13 // in the documentation and/or other materials provided with the
     14 // distribution.
     15 //     * Neither the name of Google Inc. nor the names of its
     16 // contributors may be used to endorse or promote products derived from
     17 // this software without specific prior written permission.
     18 //
     19 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
     20 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
     21 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
     22 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
     23 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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     25 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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     27 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     28 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
     29 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     30 
     31 // Author: kenton (at) google.com (Kenton Varda)
     32 //  Based on original Protocol Buffers design by
     33 //  Sanjay Ghemawat, Jeff Dean, and others.
     34 
     35 #ifndef GOOGLE_PROTOBUF_TEST_UTIL_H__
     36 #define GOOGLE_PROTOBUF_TEST_UTIL_H__
     37 
     38 #include <stack>
     39 #include <string>
     40 #include <google/protobuf/message.h>
     41 #include <google/protobuf/unittest.pb.h>
     42 
     43 namespace google {
     44 namespace protobuf {
     45 
     46 namespace unittest = protobuf_unittest;
     47 namespace unittest_import = protobuf_unittest_import;
     48 
     49 class TestUtil {
     50  public:
     51   // Set every field in the message to a unique value.
     52   static void SetAllFields(unittest::TestAllTypes* message);
     53   static void SetAllExtensions(unittest::TestAllExtensions* message);
     54   static void SetAllFieldsAndExtensions(unittest::TestFieldOrderings* message);
     55   static void SetPackedFields(unittest::TestPackedTypes* message);
     56   static void SetPackedExtensions(unittest::TestPackedExtensions* message);
     57   static void SetUnpackedFields(unittest::TestUnpackedTypes* message);
     58 
     59   // Use the repeated versions of the set_*() accessors to modify all the
     60   // repeated fields of the messsage (which should already have been
     61   // initialized with Set*Fields()).  Set*Fields() itself only tests
     62   // the add_*() accessors.
     63   static void ModifyRepeatedFields(unittest::TestAllTypes* message);
     64   static void ModifyRepeatedExtensions(unittest::TestAllExtensions* message);
     65   static void ModifyPackedFields(unittest::TestPackedTypes* message);
     66   static void ModifyPackedExtensions(unittest::TestPackedExtensions* message);
     67 
     68   // Check that all fields have the values that they should have after
     69   // Set*Fields() is called.
     70   static void ExpectAllFieldsSet(const unittest::TestAllTypes& message);
     71   static void ExpectAllExtensionsSet(
     72       const unittest::TestAllExtensions& message);
     73   static void ExpectPackedFieldsSet(const unittest::TestPackedTypes& message);
     74   static void ExpectPackedExtensionsSet(
     75       const unittest::TestPackedExtensions& message);
     76   static void ExpectUnpackedFieldsSet(
     77       const unittest::TestUnpackedTypes& message);
     78 
     79   // Expect that the message is modified as would be expected from
     80   // Modify*Fields().
     81   static void ExpectRepeatedFieldsModified(
     82       const unittest::TestAllTypes& message);
     83   static void ExpectRepeatedExtensionsModified(
     84       const unittest::TestAllExtensions& message);
     85   static void ExpectPackedFieldsModified(
     86       const unittest::TestPackedTypes& message);
     87   static void ExpectPackedExtensionsModified(
     88       const unittest::TestPackedExtensions& message);
     89 
     90   // Check that all fields have their default values.
     91   static void ExpectClear(const unittest::TestAllTypes& message);
     92   static void ExpectExtensionsClear(const unittest::TestAllExtensions& message);
     93   static void ExpectPackedClear(const unittest::TestPackedTypes& message);
     94   static void ExpectPackedExtensionsClear(
     95       const unittest::TestPackedExtensions& message);
     96 
     97   // Check that the passed-in serialization is the canonical serialization we
     98   // expect for a TestFieldOrderings message filled in by
     99   // SetAllFieldsAndExtensions().
    100   static void ExpectAllFieldsAndExtensionsInOrder(const string& serialized);
    101 
    102   // Check that all repeated fields have had their last elements removed.
    103   static void ExpectLastRepeatedsRemoved(
    104       const unittest::TestAllTypes& message);
    105   static void ExpectLastRepeatedExtensionsRemoved(
    106       const unittest::TestAllExtensions& message);
    107 
    108   // Check that all repeated fields have had their first and last elements
    109   // swapped.
    110   static void ExpectRepeatedsSwapped(const unittest::TestAllTypes& message);
    111   static void ExpectRepeatedExtensionsSwapped(
    112       const unittest::TestAllExtensions& message);
    113 
    114   // Like above, but use the reflection interface.
    115   class ReflectionTester {
    116    public:
    117     // base_descriptor must be a descriptor for TestAllTypes or
    118     // TestAllExtensions.  In the former case, ReflectionTester fetches from
    119     // it the FieldDescriptors needed to use the reflection interface.  In
    120     // the latter case, ReflectionTester searches for extension fields in
    121     // its file.
    122     explicit ReflectionTester(const Descriptor* base_descriptor);
    123 
    124     void SetAllFieldsViaReflection(Message* message);
    125     void ModifyRepeatedFieldsViaReflection(Message* message);
    126     void ExpectAllFieldsSetViaReflection(const Message& message);
    127     void ExpectClearViaReflection(const Message& message);
    128 
    129     void SetPackedFieldsViaReflection(Message* message);
    130     void ModifyPackedFieldsViaReflection(Message* message);
    131     void ExpectPackedFieldsSetViaReflection(const Message& message);
    132     void ExpectPackedClearViaReflection(const Message& message);
    133 
    134     void RemoveLastRepeatedsViaReflection(Message* message);
    135     void SwapRepeatedsViaReflection(Message* message);
    136 
    137    private:
    138     const FieldDescriptor* F(const string& name);
    139 
    140     const Descriptor* base_descriptor_;
    141 
    142     const FieldDescriptor* group_a_;
    143     const FieldDescriptor* repeated_group_a_;
    144     const FieldDescriptor* nested_b_;
    145     const FieldDescriptor* foreign_c_;
    146     const FieldDescriptor* import_d_;
    147 
    148     const EnumValueDescriptor* nested_foo_;
    149     const EnumValueDescriptor* nested_bar_;
    150     const EnumValueDescriptor* nested_baz_;
    151     const EnumValueDescriptor* foreign_foo_;
    152     const EnumValueDescriptor* foreign_bar_;
    153     const EnumValueDescriptor* foreign_baz_;
    154     const EnumValueDescriptor* import_foo_;
    155     const EnumValueDescriptor* import_bar_;
    156     const EnumValueDescriptor* import_baz_;
    157 
    158     // We have to split this into three function otherwise it creates a stack
    159     // frame so large that it triggers a warning.
    160     void ExpectAllFieldsSetViaReflection1(const Message& message);
    161     void ExpectAllFieldsSetViaReflection2(const Message& message);
    162     void ExpectAllFieldsSetViaReflection3(const Message& message);
    163 
    164     GOOGLE_DISALLOW_EVIL_CONSTRUCTORS(ReflectionTester);
    165   };
    166 
    167  private:
    168   GOOGLE_DISALLOW_EVIL_CONSTRUCTORS(TestUtil);
    169 };
    170 
    171 }  // namespace protobuf
    172 
    173 }  // namespace google
    174 #endif  // GOOGLE_PROTOBUF_TEST_UTIL_H__
    175