text: // Copyright (c) 2012 The Chromium 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 "base/version.h"
  
  #include <stddef.h>
  #include <stdint.h>
  #include <utility>
  
  #include "testing/gtest/include/gtest/gtest.h"
  
  namespace {
  
  TEST(VersionTest, DefaultConstructor) {
    base::Version v;
    EXPECT_FALSE(v.IsValid());
  }
  
  TEST(VersionTest, ValueSemantics) {
    base::Version v1("1.2.3.4");
    EXPECT_TRUE(v1.IsValid());
    base::Version v3;
    EXPECT_FALSE(v3.IsValid());
    {
      base::Version v2(v1);
      v3 = v2;
      EXPECT_TRUE(v2.IsValid());
      EXPECT_EQ(v1, v2);
    }
    EXPECT_EQ(v3, v1);
  }
  
  TEST(VersionTest, MoveSemantics) {
    const std::vector<uint32_t> components = {1, 2, 3, 4};
    base::Version v1(std::move(components));
    EXPECT_TRUE(v1.IsValid());
    base::Version v2("1.2.3.4");
    EXPECT_EQ(v1, v2);
  }
  
  TEST(VersionTest, GetVersionFromString) {
    static const struct version_string {
      const char* input;
      size_t parts;
      uint32_t firstpart;
      bool success;
    } cases[] = {
      {"", 0, 0, false},
      {" ", 0, 0, false},
      {"\t", 0, 0, false},
      {"\n", 0, 0, false},
      {"  ", 0, 0, false},
      {".", 0, 0, false},
      {" . ", 0, 0, false},
      {"0", 1, 0, true},
      {"0.", 0, 0, false},
      {"0.0", 2, 0, true},
      {"4294967295.0", 2, 4294967295, true},
      {"4294967296.0", 0, 0, false},
      {"-1.0", 0, 0, false},
      {"1.-1.0", 0, 0, false},
      {"1,--1.0", 0, 0, false},
      {"+1.0", 0, 0, false},
      {"1.+1.0", 0, 0, false},
      {"1+1.0", 0, 0, false},
      {"++1.0", 0, 0, false},
      {"1.0a", 0, 0, false},
      {"1.2.3.4.5.6.7.8.9.0", 10, 1, true},
      {"02.1", 0, 0, false},
      {"0.01", 2, 0, true},
      {"f.1", 0, 0, false},
      {"15.007.20011", 3, 15, true},
      {"15.5.28.130162", 4, 15, true},
    };
  
    for (const auto& i : cases) {
      base::Version version(i.input);
      EXPECT_EQ(i.success, version.IsValid());
      if (i.success) {
        EXPECT_EQ(i.parts, version.components().size());
        EXPECT_EQ(i.firstpart, version.components()[0]);
      }
    }
  }
  
  TEST(VersionTest, Compare) {
    static const struct version_compare {
      const char* lhs;
      const char* rhs;
      int expected;
    } cases[] = {
        {"1.0", "1.0", 0},
        {"1.0", "0.0", 1},
        {"1.0", "2.0", -1},
        {"1.0", "1.1", -1},
        {"1.1", "1.0", 1},
        {"1.0", "1.0.1", -1},
        {"1.1", "1.0.1", 1},
        {"1.1", "1.0.1", 1},
        {"1.0.0", "1.0", 0},
        {"1.0.3", "1.0.20", -1},
        {"11.0.10", "15.007.20011", -1},
        {"11.0.10", "15.5.28.130162", -1},
        {"15.5.28.130162", "15.5.28.130162", 0},
    };
    for (const auto& i : cases) {
      base::Version lhs(i.lhs);
      base::Version rhs(i.rhs);
      EXPECT_EQ(lhs.CompareTo(rhs), i.expected) << i.lhs << " ? " << i.rhs;
      // CompareToWildcardString() should have same behavior as CompareTo() when
      // no wildcards are present.
      EXPECT_EQ(lhs.CompareToWildcardString(i.rhs), i.expected)
          << i.lhs << " ? " << i.rhs;
      EXPECT_EQ(rhs.CompareToWildcardString(i.lhs), -i.expected)
          << i.lhs << " ? " << i.rhs;
  
      // Test comparison operators
      switch (i.expected) {
        case -1:
          EXPECT_LT(lhs, rhs);
          EXPECT_LE(lhs, rhs);
          EXPECT_NE(lhs, rhs);
          EXPECT_FALSE(lhs == rhs);
          EXPECT_FALSE(lhs >= rhs);
          EXPECT_FALSE(lhs > rhs);
          break;
        case 0:
          EXPECT_FALSE(lhs < rhs);
          EXPECT_LE(lhs, rhs);
          EXPECT_FALSE(lhs != rhs);
          EXPECT_EQ(lhs, rhs);
          EXPECT_GE(lhs, rhs);
          EXPECT_FALSE(lhs > rhs);
          break;
        case 1:
          EXPECT_FALSE(lhs < rhs);
          EXPECT_FALSE(lhs <= rhs);
          EXPECT_NE(lhs, rhs);
          EXPECT_FALSE(lhs == rhs);
          EXPECT_GE(lhs, rhs);
          EXPECT_GT(lhs, rhs);
          break;
      }
    }
  }
  
  TEST(VersionTest, CompareToWildcardString) {
    static const struct version_compare {
      const char* lhs;
      const char* rhs;
      int expected;
    } cases[] = {
      {"1.0", "1.*", 0},
      {"1.0", "0.*", 1},
      {"1.0", "2.*", -1},
      {"1.2.3", "1.2.3.*", 0},
      {"10.0", "1.0.*", 1},
      {"1.0", "3.0.*", -1},
      {"1.4", "1.3.0.*", 1},
      {"1.3.9", "1.3.*", 0},
      {"1.4.1", "1.3.*", 1},
      {"1.3", "1.4.5.*", -1},
      {"1.5", "1.4.5.*", 1},
      {"1.3.9", "1.3.*", 0},
      {"1.2.0.0.0.0", "1.2.*", 0},
    };
    for (const auto& i : cases) {
      const base::Version version(i.lhs);
      const int result = version.CompareToWildcardString(i.rhs);
      EXPECT_EQ(result, i.expected) << i.lhs << "?" << i.rhs;
    }
  }
  
  TEST(VersionTest, IsValidWildcardString) {
    static const struct version_compare {
      const char* version;
      bool expected;
    } cases[] = {
      {"1.0", true},
      {"", false},
      {"1.2.3.4.5.6", true},
      {"1.2.3.*", true},
      {"1.2.3.5*", false},
      {"1.2.3.56*", false},
      {"1.*.3", false},
      {"20.*", true},
      {"+2.*", false},
      {"*", false},
      {"*.2", false},
    };
    for (const auto& i : cases) {
      EXPECT_EQ(base::Version::IsValidWildcardString(i.version), i.expected)
          << i.version << "?" << i.expected;
    }
  }
  
  TEST(VersionTest, LeadingZeros) {
    {
      // Leading zeros in the first component are not allowed.
      base::Version v("01.1");
      EXPECT_FALSE(v.IsValid());
    }
  
    {
      // Leading zeros in subsequent components are allowed (and this behavior is
      // now important for compatibility with existing modules, like extensions),
      // but are ignored because the value is parsed as an integer...
      base::Version v1("1.01");
      EXPECT_TRUE(v1.IsValid());
      // ...and as a result, v1.01 == v1.1.
      EXPECT_EQ("1.1", v1.GetString());
      base::Version v2("1.1");
      EXPECT_EQ(v1, v2);
    }
  
    // Similarly, since leading zeros are ignored, v1.02 > v1.1 (because
    // v1.02 is translated to 1.2).
    EXPECT_GT(base::Version("1.02"), base::Version("1.1"));
  }
  
  TEST(VersionTest, GetString) {
    static const struct version_compare {
      const char* version;
      bool valid;
      const char* string;
    } cases[] = {
        {"", false, "invalid"},
        {"1", true, "1"},
        {"1.0", true, "1.0"},
        {"0.0.1.0", true, "0.0.1.0"},
        {"1.2.3.4.5.6", true, "1.2.3.4.5.6"},
        {"1.*.3", false, "invalid"},
    };
  
    for (const auto& i : cases) {
      base::Version v(i.version);
      EXPECT_EQ(v.IsValid(), i.valid);
      EXPECT_EQ(v.GetString(), i.string);
    }
  }
  
  }  // namespace
  