src/third_party/angle/tests/preprocessor_tests/input_test.cpp

   1 //
   2 // Copyright (c) 2012 The ANGLE Project Authors. All rights reserved.
   3 // Use of this source code is governed by a BSD-style license that can be
   4 // found in the LICENSE file.
   5 //
   6
   7 #include "PreprocessorTest.h"
   8 #include "Input.h"
   9 #include "Token.h"
  10
  11 class InitTest : public PreprocessorTest
  12 {
  13 };
  14
  15 TEST_F(InitTest, ZeroCount)
  16 {
  17     EXPECT_TRUE(mPreprocessor.init(0, NULL, NULL));
  18
  19     pp::Token token;
  20     mPreprocessor.lex(&token);
  21     EXPECT_EQ(pp::Token::LAST, token.type);
  22 }
  23
  24 TEST_F(InitTest, NullString)
  25 {
  26     EXPECT_FALSE(mPreprocessor.init(1, NULL, NULL));
  27 }
  28
  29 TEST(InputTest, DefaultConstructor)
  30 {
  31     pp::Input input;
  32     EXPECT_EQ(0u, input.count());
  33     EXPECT_EQ(0u, input.read(NULL, 1));
  34 }
  35
  36 TEST(InputTest, NullLength)
  37 {
  38     const char* str[] = {"foo"};
  39     pp::Input input(1, str, NULL);
  40     EXPECT_EQ(3u, input.length(0));
  41 }
  42
  43 TEST(InputTest, NegativeLength)
  44 {
  45     const char* str[] = {"foo"};
  46     int length[] = {-1};
  47     pp::Input input(1, str, length);
  48     EXPECT_EQ(3u, input.length(0));
  49 }
  50
  51 TEST(InputTest, ActualLength)
  52 {
  53     const char* str[] = {"foobar"};
  54     int length[] = {3};
  55     pp::Input input(1, str, length);
  56     // Note that strlen(str[0]) != length[0].
  57     // Even then Input should just accept any non-negative number.
  58     EXPECT_EQ(static_cast<size_t>(length[0]), input.length(0));
  59 }
  60
  61 TEST(InputTest, String)
  62 {
  63     const char* str[] = {"foo"};
  64     pp::Input input(1, str, NULL);
  65     EXPECT_STREQ(str[0], input.string(0));
  66 }
  67
  68 TEST(InputTest, ReadSingleString)
  69 {
  70     int count = 1;
  71     const char* str[] = {"foo"};
  72     char buf[4] = {'\0', '\0', '\0', '\0'};
  73
  74     int maxSize = 1;
  75     pp::Input input1(count, str, NULL);
  76     EXPECT_EQ(1u, input1.read(buf, maxSize));
  77     EXPECT_EQ('f', buf[0]);
  78     EXPECT_EQ(1u, input1.read(buf, maxSize));
  79     EXPECT_EQ('o', buf[0]);
  80     EXPECT_EQ(1u, input1.read(buf, maxSize));
  81     EXPECT_EQ('o', buf[0]);
  82     EXPECT_EQ(0u, input1.read(buf, maxSize));
  83
  84     maxSize = 2;
  85     pp::Input input2(count, str, NULL);
  86     EXPECT_EQ(2u, input2.read(buf, maxSize));
  87     EXPECT_STREQ("fo", buf);
  88     EXPECT_EQ(1u, input2.read(buf, maxSize));
  89     EXPECT_EQ('o', buf[0]);
  90     EXPECT_EQ(0u, input2.read(buf, maxSize));
  91
  92     maxSize = 3;
  93     pp::Input input3(count, str, NULL);
  94     EXPECT_EQ(3u, input3.read(buf, maxSize));
  95     EXPECT_STREQ("foo", buf);
  96     EXPECT_EQ(0u, input3.read(buf, maxSize));
  97
  98     maxSize = 4;
  99     pp::Input input4(count, str, NULL);
 100     EXPECT_EQ(3u, input4.read(buf, maxSize));
 101     EXPECT_STREQ("foo", buf);
 102     EXPECT_EQ(0u, input4.read(buf, maxSize));
 103 }
 104
 105 TEST(InputTest, ReadMultipleStrings)
 106 {
 107     int count = 3;
 108     const char* str[] = {"f", "o", "o"};
 109     char buf[4] = {'\0', '\0', '\0', '\0'};
 110
 111     int maxSize = 1;
 112     pp::Input input1(count, str, NULL);
 113     EXPECT_EQ(1u, input1.read(buf, maxSize));
 114     EXPECT_EQ('f', buf[0]);
 115     EXPECT_EQ(1u, input1.read(buf, maxSize));
 116     EXPECT_EQ('o', buf[0]);
 117     EXPECT_EQ(1u, input1.read(buf, maxSize));
 118     EXPECT_EQ('o', buf[0]);
 119     EXPECT_EQ(0u, input1.read(buf, maxSize));
 120
 121     maxSize = 2;
 122     pp::Input input2(count, str, NULL);
 123     EXPECT_EQ(2u, input2.read(buf, maxSize));
 124     EXPECT_STREQ("fo", buf);
 125     EXPECT_EQ(1u, input2.read(buf, maxSize));
 126     EXPECT_EQ('o', buf[0]);
 127     EXPECT_EQ(0u, input2.read(buf, maxSize));
 128
 129     maxSize = 3;
 130     pp::Input input3(count, str, NULL);
 131     EXPECT_EQ(3u, input3.read(buf, maxSize));
 132     EXPECT_STREQ("foo", buf);
 133     EXPECT_EQ(0u, input3.read(buf, maxSize));
 134
 135     maxSize = 4;
 136     pp::Input input4(count, str, NULL);
 137     EXPECT_EQ(3u, input4.read(buf, maxSize));
 138     EXPECT_STREQ("foo", buf);
 139     EXPECT_EQ(0u, input4.read(buf, maxSize));
 140 }
 141
 142 TEST(InputTest, ReadStringsWithLength)
 143 {
 144     int count = 2;
 145     const char* str[] = {"foo", "bar"};
 146     // Note that the length for the first string is 2 which is less than
 147     // strlen(str[0]. We want to make sure that the last character is ignored.
 148     int length[] = {2, 3};
 149     char buf[6] = {'\0', '\0', '\0', '\0', '\0', '\0'};
 150     size_t maxSize = 5;
 151
 152     pp::Input input(count, str, length);
 153     EXPECT_EQ(maxSize, input.read(buf, maxSize));
 154     EXPECT_STREQ("fobar", buf);
 155 }
 156