kc3-lang/angle/tests/preprocessor_tests/input_test.cpp

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• Hash : 98eec912
  Author :
  Date : 2012-05-01T10:04:08
  

  Using yy_scan_string, which flushes the old buffer does not work. GLSL requires that each input string is concatenated, but yy_scan_string treats each string individually. Added a custom YY_INPUT which maintains the continuity between each string.
  Review URL: https://codereview.appspot.com/6130045
  
  git-svn-id: https://angleproject.googlecode.com/svn/trunk@1066 736b8ea6-26fd-11df-bfd4-992fa37f6226
  

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• tests/preprocessor_tests/input_test.cpp

• //
  // Copyright (c) 2012 The ANGLE Project Authors. All rights reserved.
  // Use of this source code is governed by a BSD-style license that can be
  // found in the LICENSE file.
  //
  
  #include "gtest/gtest.h"
  #include "Preprocessor.h"
  #include "Token.h"
  
  TEST(InputTest, NegativeCount)
  {
      pp::Preprocessor preprocessor;
      EXPECT_FALSE(preprocessor.init(-1, NULL, NULL));
  }
  
  TEST(InputTest, ZeroCount)
  {
      pp::Token token;
      pp::Preprocessor preprocessor;
      EXPECT_TRUE(preprocessor.init(0, NULL, NULL));
      EXPECT_EQ(pp::Token::LAST, preprocessor.lex(&token));
      EXPECT_EQ(pp::Token::LAST, token.type);
  }
  
  TEST(InputTest, NullString)
  {
      pp::Preprocessor preprocessor;
      EXPECT_FALSE(preprocessor.init(1, NULL, NULL));
  }
  
  TEST(InputTest, DefaultConstructor)
  {
      pp::Input input;
      EXPECT_EQ(0, input.count());
      EXPECT_EQ(0, input.read(NULL, 1));
  }
  
  TEST(InputTest, NullLength)
  {
      char* str[] = {"foo"};
      pp::Input input(1, str, NULL);
      EXPECT_EQ(3, input.length(0));
  }
  
  TEST(InputTest, NegativeLength)
  {
      char* str[] = {"foo"};
      int length[] = {-1};
      pp::Input input(1, str, length);
      EXPECT_EQ(3, input.length(0));
  }
  
  TEST(InputTest, ActualLength)
  {
      char* str[] = {"foobar"};
      int length[] = {3};
      pp::Input input(1, str, length);
      // Note that strlen(str[0]) != length[0].
      // Even then Input should just accept any non-negative number.
      EXPECT_EQ(length[0], input.length(0));
  }
  
  TEST(InputTest, String)
  {
      char* str[] = {"foo"};
      pp::Input input(1, str, NULL);
      EXPECT_STREQ(str[0], input.string(0));
  }
  
  TEST(InputTest, ReadSingleString)
  {
      int count = 1;
      char* str[] = {"foo"};
      char buf[4] = {'\0', '\0', '\0', '\0'};
  
      int maxSize = 1;
      pp::Input input1(count, str, NULL);
      EXPECT_EQ(1, input1.read(buf, maxSize));
      EXPECT_EQ('f', buf[0]);
      EXPECT_EQ(1, input1.read(buf, maxSize));
      EXPECT_EQ('o', buf[0]);
      EXPECT_EQ(1, input1.read(buf, maxSize));
      EXPECT_EQ('o', buf[0]);
      EXPECT_EQ(0, input1.read(buf, maxSize));
  
      maxSize = 2;
      pp::Input input2(count, str, NULL);
      EXPECT_EQ(2, input2.read(buf, maxSize));
      EXPECT_STREQ("fo", buf);
      EXPECT_EQ(1, input2.read(buf, maxSize));
      EXPECT_EQ('o', buf[0]);
      EXPECT_EQ(0, input2.read(buf, maxSize));
  
      maxSize = 3;
      pp::Input input3(count, str, NULL);
      EXPECT_EQ(3, input3.read(buf, maxSize));
      EXPECT_STREQ("foo", buf);
      EXPECT_EQ(0, input3.read(buf, maxSize));
  
      maxSize = 4;
      pp::Input input4(count, str, NULL);
      EXPECT_EQ(3, input4.read(buf, maxSize));
      EXPECT_STREQ("foo", buf);
      EXPECT_EQ(0, input4.read(buf, maxSize));
  }
  
  TEST(InputTest, ReadMultipleStrings)
  {
      int count = 3;
      char* str[] = {"f", "o", "o"};
      char buf[4] = {'\0', '\0', '\0', '\0'};
  
      int maxSize = 1;
      pp::Input input1(count, str, NULL);
      EXPECT_EQ(1, input1.read(buf, maxSize));
      EXPECT_EQ('f', buf[0]);
      EXPECT_EQ(1, input1.read(buf, maxSize));
      EXPECT_EQ('o', buf[0]);
      EXPECT_EQ(1, input1.read(buf, maxSize));
      EXPECT_EQ('o', buf[0]);
      EXPECT_EQ(0, input1.read(buf, maxSize));
  
      maxSize = 2;
      pp::Input input2(count, str, NULL);
      EXPECT_EQ(2, input2.read(buf, maxSize));
      EXPECT_STREQ("fo", buf);
      EXPECT_EQ(1, input2.read(buf, maxSize));
      EXPECT_EQ('o', buf[0]);
      EXPECT_EQ(0, input2.read(buf, maxSize));
  
      maxSize = 3;
      pp::Input input3(count, str, NULL);
      EXPECT_EQ(3, input3.read(buf, maxSize));
      EXPECT_STREQ("foo", buf);
      EXPECT_EQ(0, input3.read(buf, maxSize));
  
      maxSize = 4;
      pp::Input input4(count, str, NULL);
      EXPECT_EQ(3, input4.read(buf, maxSize));
      EXPECT_STREQ("foo", buf);
      EXPECT_EQ(0, input4.read(buf, maxSize));
  }
  
  TEST(InputTest, ReadStringsWithLength)
  {
      int count = 2;
      char* str[] = {"foo", "bar"};
      // Note that the length for the first string is 2 which is less than
      // strlen(str[0]. We want to make sure that the last character is ignored.
      int length[] = {2, 3};
      char buf[6] = {'\0', '\0', '\0', '\0', '\0', '\0'};
      int maxSize = 5;
  
      pp::Input input(count, str, length);
      EXPECT_EQ(maxSize, input.read(buf, maxSize));
      EXPECT_STREQ("fobar", buf);
  }
  
  

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