use Google C++ Testing Framework for libapt tests

My commit 45df0ad2 from 26. Nov 2009 had a little remark:
"The commit also includes a very very simple testapp."
This was never intended to be permanent, but as usually…

The commit adds the needed make magic to compile gtest statically
as it is required and links it against a small runner. All previous
testcase binaries are reimplemented in gtest and combined in this
runner. While most code is a 1:1 translation some had to be rewritten
like compareversion_test.cc, but the coverage remains the same.

1 files changed, 155 insertions, 119 deletions

diff --git a/test/libapt/hashsums_test.cc b/test/libapt/hashsums_test.cc
index d743faec6..c06d85e03 100644
--- a/test/libapt/hashsums_test.cc
+++ b/test/libapt/hashsums_test.cc
@@ -11,7 +11,9 @@
 #include <stdlib.h>
 #include <string>
 
-#include "assert.h"
+#include <gtest/gtest.h>
+
+#include "file-helpers.h"
 
 template <class T> void Test(const char *In,const char *Out)
 {
@@ -20,167 +22,201 @@ template <class T> void Test(const char *In,const char *Out)
    equals(Sum.Result().Value(), Out);
 }
 
-template <class T> void TestMill(const char *Out)
+
+
+TEST(HashSumsTest,SummationStrings)
 {
-   T Sum;
+#define EXPECT_SUM(Summation, In, Out) \
+   { \
+      Summation Sum; \
+      Sum.Add(In); \
+      EXPECT_EQ(Sum.Result().Value(), Out) << #Summation << " for '" << In << "'"; \
+   }
+
+   // From  FIPS PUB 180-1
+   EXPECT_SUM(SHA1Summation, "","da39a3ee5e6b4b0d3255bfef95601890afd80709");
+   EXPECT_SUM(SHA1Summation, "abc","a9993e364706816aba3e25717850c26c9cd0d89d");
+   EXPECT_SUM(SHA1Summation, "abcdbcdecdefdefgefghfghighijhijkijkljklmklmnlmnomnopnopq",
+	 "84983e441c3bd26ebaae4aa1f95129e5e54670f1");
+
+   // MD5 tests from RFC 1321
+   EXPECT_SUM(MD5Summation, "","d41d8cd98f00b204e9800998ecf8427e");
+   EXPECT_SUM(MD5Summation, "a","0cc175b9c0f1b6a831c399e269772661");
+   EXPECT_SUM(MD5Summation, "abc","900150983cd24fb0d6963f7d28e17f72");
+   EXPECT_SUM(MD5Summation, "message digest","f96b697d7cb7938d525a2f31aaf161d0");
+   EXPECT_SUM(MD5Summation, "abcdefghijklmnopqrstuvwxyz","c3fcd3d76192e4007dfb496cca67e13b");
+   EXPECT_SUM(MD5Summation, "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789",
+	 "d174ab98d277d9f5a5611c2c9f419d9f");
+   EXPECT_SUM(MD5Summation, "12345678901234567890123456789012345678901234567890123456789012345678901234567890",
+	 "57edf4a22be3c955ac49da2e2107b67a");
 
-   const unsigned char As[] = "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa";
-   unsigned Count = 1000000;
-   for (; Count != 0;)
+   // SHA-256, From FIPS 180-2
+   EXPECT_SUM(SHA256Summation, "", "e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855");
+   EXPECT_SUM(SHA256Summation, "abcdbcdecdefdefgefghfghighijhijkijkljklmklmnlmnomnopnopq",
+	 "248d6a61d20638b8e5c026930c3e6039a33ce45964ff2167f6ecedd419db06c1");
+
+   // SHA-512
+   EXPECT_SUM(SHA512Summation, "",
+	 "cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce"
+	 "47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e");
+   EXPECT_SUM(SHA512Summation, "abc",
+	 "ddaf35a193617abacc417349ae20413112e6fa4e89a97ea20a9eeee64b55d39a"
+	 "2192992a274fc1a836ba3c23a3feebbd454d4423643ce80e2a9ac94fa54ca49f");
+
+
+   EXPECT_SUM(MD5Summation, "The quick brown fox jumps over the lazy dog", "9e107d9d372bb6826bd81d3542a419d6");
+   EXPECT_SUM(MD5Summation, "The quick brown fox jumps over the lazy dog.", "e4d909c290d0fb1ca068ffaddf22cbd0");
+   EXPECT_SUM(SHA1Summation, "The quick brown fox jumps over the lazy dog", "2fd4e1c67a2d28fced849ee1bb76e7391b93eb12");
+   EXPECT_SUM(SHA1Summation, "The quick brown fox jumps over the lazy cog", "de9f2c7fd25e1b3afad3e85a0bd17d9b100db4b3");
+   EXPECT_SUM(SHA256Summation, "The quick brown fox jumps over the lazy dog", "d7a8fbb307d7809469ca9abcb0082e4f8d5651e46d3cdb762d02d0bf37c9e592");
+   EXPECT_SUM(SHA256Summation, "The quick brown fox jumps over the lazy dog.", "ef537f25c895bfa782526529a9b63d97aa631564d5d789c2b765448c8635fb6c");
+   EXPECT_SUM(SHA512Summation, "The quick brown fox jumps over the lazy dog", "07e547d9586f6a73f73fbac0435ed76951218fb7d0c8d788a309d785436bbb64"
+	 "2e93a252a954f23912547d1e8a3b5ed6e1bfd7097821233fa0538f3db854fee6");
+   EXPECT_SUM(SHA512Summation, "The quick brown fox jumps over the lazy dog.", "91ea1245f20d46ae9a037a989f54f1f790f0a47607eeb8a14d12890cea77a1bb"
+	 "c6c7ed9cf205e67b7f2b8fd4c7dfd3a7a8617e45f3c463d481c7e586c39ac1ed");
+
+#undef EXPECT_SUM
+}
+TEST(HashSumsTest, Mill)
+{
+   SHA1Summation Sum1;
+
+   const unsigned char As[] = "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa";
+   size_t const AsCount = sizeof(As)/sizeof(As[0]) - 1;
+   size_t Count = 1000000;
+   while (Count != 0)
    {
-      if (Count >= 64)
+      if (Count >= AsCount)
       {
-	 Sum.Add(As,64);
-	 Count -= 64;
+	 Sum1.Add(As, AsCount);
+	 Count -= AsCount;
       }
       else
       {
-	 Sum.Add(As,Count);
+	 Sum1.Add(As,Count);
 	 Count = 0;
       }
    }
 
-   if (stringcasecmp(Sum.Result().Value(), Out) != 0)
-      abort();
+   EXPECT_EQ("34aa973cd4c4daa4f61eeb2bdbad27316534016f", Sum1.Result().Value());
 }
 
-int main(int argc, char** argv)
+static void getSummationString(char const * const type, std::string &sum)
 {
-   if (argc != 6) {
-      std::cout << "Five parameter expected - given " << argc << std::endl;
-      return 100;
-   }
+   /* to compare our result with an independent source we call the specific binaries
+      and read their result back. We do this with a little trick by claiming that the
+      summation is a compressor – and open the 'compressed' file later on directly to
+      read out the summation sum calculated by it */
+   APT::Configuration::Compressor compress(type, ".ext", type, NULL, NULL, 99);
+   std::string name("apt-test-");
+   name.append("hashsums").append(".XXXXXX");
+   char * tempfile = strdup(name.c_str());
+   int tempfile_fd = mkstemp(tempfile);
+   close(tempfile_fd);
+   ASSERT_NE(-1, tempfile_fd);
+
+   FileFd fd;
+   ASSERT_TRUE(fd.Open(tempfile, FileFd::WriteOnly | FileFd::Empty, compress));
+   ASSERT_TRUE(fd.IsOpen());
+   FileFd input(__FILE__, FileFd::ReadOnly);
+   ASSERT_TRUE(input.IsOpen());
+   ASSERT_NE(0, input.FileSize());
+   ASSERT_TRUE(CopyFile(input, fd));
+   ASSERT_TRUE(input.IsOpen());
+   ASSERT_TRUE(fd.IsOpen());
+   ASSERT_FALSE(fd.Failed());
+   input.Close();
+   fd.Close();
+   ASSERT_TRUE(fd.Open(tempfile, FileFd::ReadOnly, FileFd::None));
+   ASSERT_TRUE(fd.IsOpen());
+   ASSERT_NE(0, fd.FileSize());
+   ASSERT_FALSE(fd.Failed());
+   unlink(tempfile);
+   free(tempfile);
+   char readback[2000];
+   unsigned long long actual;
+   ASSERT_TRUE(fd.Read(readback, sizeof(readback)/sizeof(readback[0]), &actual));
+   actual -= 4;
+   readback[actual] = '\0';
+   sum = readback;
+}
+TEST(HashSumsTest, FileBased)
+{
+   std::string summation;
 
-   // test HashSumValue which doesn't calculate but just stores sums
-   {
-   std::string md5sum = argv[2];
-   MD5SumValue md5(md5sum);
-   equals(md5.Value(), md5sum);
-   }
-   {
-   std::string sha1sum = argv[3];
-   SHA1SumValue sha1(sha1sum);
-   equals(sha1.Value(), sha1sum);
-   }
-   {
-   std::string sha2sum = argv[4];
-   SHA256SumValue sha2(sha2sum);
-   equals(sha2.Value(), sha2sum);
-   }
-   {
-   std::string sha2sum = argv[5];
-   SHA512SumValue sha2(sha2sum);
-   equals(sha2.Value(), sha2sum);
-   }
+   getSummationString("md5sum", summation);
+   MD5SumValue md5(summation);
+   EXPECT_EQ(md5.Value(), summation);
 
-   // From  FIPS PUB 180-1
-   Test<SHA1Summation>("","da39a3ee5e6b4b0d3255bfef95601890afd80709");
-   Test<SHA1Summation>("abc","a9993e364706816aba3e25717850c26c9cd0d89d");
-   Test<SHA1Summation>("abcdbcdecdefdefgefghfghighijhijkijkljklmklmnlmnomnopnopq",
-		       "84983e441c3bd26ebaae4aa1f95129e5e54670f1");
-   TestMill<SHA1Summation>("34aa973cd4c4daa4f61eeb2bdbad27316534016f");
+   getSummationString("sha1sum", summation);
+   SHA1SumValue sha1(summation);
+   EXPECT_EQ(sha1.Value(), summation);
 
-   // MD5 tests from RFC 1321
-   Test<MD5Summation>("","d41d8cd98f00b204e9800998ecf8427e");
-   Test<MD5Summation>("a","0cc175b9c0f1b6a831c399e269772661");
-   Test<MD5Summation>("abc","900150983cd24fb0d6963f7d28e17f72");
-   Test<MD5Summation>("message digest","f96b697d7cb7938d525a2f31aaf161d0");
-   Test<MD5Summation>("abcdefghijklmnopqrstuvwxyz","c3fcd3d76192e4007dfb496cca67e13b");
-   Test<MD5Summation>("ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789",
-		      "d174ab98d277d9f5a5611c2c9f419d9f");
-   Test<MD5Summation>("12345678901234567890123456789012345678901234567890123456789012345678901234567890",
-		      "57edf4a22be3c955ac49da2e2107b67a");
+   getSummationString("sha256sum", summation);
+   SHA256SumValue sha256(summation);
+   EXPECT_EQ(sha256.Value(), summation);
 
-   // SHA-256, From FIPS 180-2
-   Test<SHA256Summation>("", "e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855");
-   Test<SHA256Summation>("abcdbcdecdefdefgefghfghighijhijkijkljklmklmnlmnomnopnopq",
-			 "248d6a61d20638b8e5c026930c3e6039a33ce45964ff2167f6ecedd419db06c1");
+   getSummationString("sha512sum", summation);
+   SHA512SumValue sha512(summation);
+   EXPECT_EQ(sha512.Value(), summation);
+
+   FileFd fd(__FILE__, FileFd::ReadOnly);
+   EXPECT_TRUE(fd.IsOpen());
 
-   // SHA-512
-   Test<SHA512Summation>("",
-	"cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce"
-	"47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e");
-   Test<SHA512Summation>(
-      "abc",
-      "ddaf35a193617abacc417349ae20413112e6fa4e89a97ea20a9eeee64b55d39a"
-      "2192992a274fc1a836ba3c23a3feebbd454d4423643ce80e2a9ac94fa54ca49f");
-
-
-   Test<MD5Summation>("The quick brown fox jumps over the lazy dog", "9e107d9d372bb6826bd81d3542a419d6");
-   Test<MD5Summation>("The quick brown fox jumps over the lazy dog.", "e4d909c290d0fb1ca068ffaddf22cbd0");
-   Test<SHA1Summation>("The quick brown fox jumps over the lazy dog", "2fd4e1c67a2d28fced849ee1bb76e7391b93eb12");
-   Test<SHA1Summation>("The quick brown fox jumps over the lazy cog", "de9f2c7fd25e1b3afad3e85a0bd17d9b100db4b3");
-   Test<SHA256Summation>("The quick brown fox jumps over the lazy dog", "d7a8fbb307d7809469ca9abcb0082e4f8d5651e46d3cdb762d02d0bf37c9e592");
-   Test<SHA256Summation>("The quick brown fox jumps over the lazy dog.", "ef537f25c895bfa782526529a9b63d97aa631564d5d789c2b765448c8635fb6c");
-   Test<SHA512Summation>("The quick brown fox jumps over the lazy dog", "07e547d9586f6a73f73fbac0435ed76951218fb7d0c8d788a309d785436bbb64"
-									"2e93a252a954f23912547d1e8a3b5ed6e1bfd7097821233fa0538f3db854fee6");
-   Test<SHA512Summation>("The quick brown fox jumps over the lazy dog.", "91ea1245f20d46ae9a037a989f54f1f790f0a47607eeb8a14d12890cea77a1bb"
-									 "c6c7ed9cf205e67b7f2b8fd4c7dfd3a7a8617e45f3c463d481c7e586c39ac1ed");
-
-   FileFd fd(argv[1], FileFd::ReadOnly);
-   if (fd.IsOpen() == false) {
-      std::cerr << "Can't open file for 1. testing: " << argv[1] << std::endl;
-      return 1;
-   }
    {
-   Hashes hashes;
-   hashes.AddFD(fd.Fd());
-   equals(argv[2], hashes.MD5.Result().Value());
-   equals(argv[3], hashes.SHA1.Result().Value());
-   equals(argv[4], hashes.SHA256.Result().Value());
-   equals(argv[5], hashes.SHA512.Result().Value());
+      Hashes hashes;
+      hashes.AddFD(fd.Fd());
+      EXPECT_EQ(md5.Value(), hashes.MD5.Result().Value());
+      EXPECT_EQ(sha1.Value(), hashes.SHA1.Result().Value());
+      EXPECT_EQ(sha256.Value(), hashes.SHA256.Result().Value());
+      EXPECT_EQ(sha512.Value(), hashes.SHA512.Result().Value());
    }
    unsigned long sz = fd.FileSize();
    fd.Seek(0);
    {
-   Hashes hashes;
-   hashes.AddFD(fd.Fd(), sz);
-   equals(argv[2], hashes.MD5.Result().Value());
-   equals(argv[3], hashes.SHA1.Result().Value());
-   equals(argv[4], hashes.SHA256.Result().Value());
-   equals(argv[5], hashes.SHA512.Result().Value());
+      Hashes hashes;
+      hashes.AddFD(fd.Fd(), sz);
+      EXPECT_EQ(md5.Value(), hashes.MD5.Result().Value());
+      EXPECT_EQ(sha1.Value(), hashes.SHA1.Result().Value());
+      EXPECT_EQ(sha256.Value(), hashes.SHA256.Result().Value());
+      EXPECT_EQ(sha512.Value(), hashes.SHA512.Result().Value());
    }
    fd.Seek(0);
    {
-   MD5Summation md5;
-   md5.AddFD(fd.Fd());
-   equals(argv[2], md5.Result().Value());
+      MD5Summation MD5;
+      MD5.AddFD(fd.Fd());
+      EXPECT_EQ(md5.Value(), MD5.Result().Value());
    }
    fd.Seek(0);
    {
-   SHA1Summation sha1;
-   sha1.AddFD(fd.Fd());
-   equals(argv[3], sha1.Result().Value());
+      SHA1Summation SHA1;
+      SHA1.AddFD(fd.Fd());
+      EXPECT_EQ(sha1.Value(), SHA1.Result().Value());
    }
    fd.Seek(0);
    {
-   SHA256Summation sha2;
-   sha2.AddFD(fd.Fd());
-   equals(argv[4], sha2.Result().Value());
+      SHA256Summation SHA2;
+      SHA2.AddFD(fd.Fd());
+      EXPECT_EQ(sha256.Value(), SHA2.Result().Value());
    }
    fd.Seek(0);
    {
-   SHA512Summation sha2;
-   sha2.AddFD(fd.Fd());
-   equals(argv[5], sha2.Result().Value());
+      SHA512Summation SHA2;
+      SHA2.AddFD(fd.Fd());
+      EXPECT_EQ(sha512.Value(), SHA2.Result().Value());
    }
    fd.Close();
 
-   // test HashString code
    {
-   HashString sha2("SHA256", argv[4]);
-   equals(sha2.VerifyFile(argv[1]), true);
+      HashString sha2("SHA256", sha256.Value());
+      EXPECT_TRUE(sha2.VerifyFile(__FILE__));
    }
    {
-   HashString sha2("SHA512", argv[5]);
-   equals(sha2.VerifyFile(argv[1]), true);
+      HashString sha2("SHA512", sha512.Value());
+      EXPECT_TRUE(sha2.VerifyFile(__FILE__));
    }
    {
-   HashString sha2("SHA256:" + std::string(argv[4]));
-   equals(sha2.VerifyFile(argv[1]), true);
+      HashString sha2("SHA256:" + sha256.Value());
+      EXPECT_TRUE(sha2.VerifyFile(__FILE__));
    }
-
-   return 0;
 }
-
-