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Comment:smaz-tests: add a basic Smaz test, using simple common strings
Timelines: family | ancestors | descendants | both | trunk
Files: files | file ages | folders
SHA1: eee21b3a8c4b77e5814982bc4086ba3c54f165e5
User & Date: nat on 2016-09-13 20:27:10
Other Links: manifest | tags
Context
2016-09-14
21:44
smaz-tests: make round-trip test really a round-trip

Since there are multiple encoded sequence that decompress into the same original string, it is much more important to check that compressed data really decompress into the original data than to check that it matches exactly the expected byte sequence check-in: e2fbcb314b user: nat tags: trunk

2016-09-13
20:27
smaz-tests: add a basic Smaz test, using simple common strings check-in: eee21b3a8c user: nat tags: trunk
2016-09-12
21:10
smaz-original: new package providing the original Smaz dictionary check-in: 59ee9e9566 user: nat tags: trunk
Changes
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Added tests/natools-smaz-tests.adb version [03fb241432]. 




























































































































































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------------------------------------------------------------------------------
-- Copyright (c) 2015-2016, Natacha Porté                                   --
--                                                                          --
-- Permission to use, copy, modify, and distribute this software for any    --
-- purpose with or without fee is hereby granted, provided that the above   --
-- copyright notice and this permission notice appear in all copies.        --
--                                                                          --
-- THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES --
-- WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF         --
-- MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR  --
-- ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES   --
-- WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN    --
-- ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF  --
-- OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.           --
------------------------------------------------------------------------------

with Ada.Strings.Unbounded;
with Natools.Smaz.Original;

package body Natools.Smaz.Tests is

   function Image (S : Ada.Streams.Stream_Element_Array) return String;

   procedure Roundtrip_Test
     (Test : in out NT.Test;
      Dict : in Dictionary;
      Decompressed : in String;
      Compressed : in Ada.Streams.Stream_Element_Array);


   ------------------------------
   -- Local Helper Subprograms --
   ------------------------------

   function Image (S : Ada.Streams.Stream_Element_Array) return String is
      use Ada.Strings.Unbounded;
      Result : Unbounded_String;
   begin
      for I in S'Range loop
         Append (Result, Ada.Streams.Stream_Element'Image (S (I)));
      end loop;

      return To_String (Result);
   end Image;


   procedure Roundtrip_Test
     (Test : in out NT.Test;
      Dict : in Dictionary;
      Decompressed : in String;
      Compressed : in Ada.Streams.Stream_Element_Array)
   is
      use type Ada.Streams.Stream_Element_Array;
      use type Ada.Streams.Stream_Element_Offset;

      Buffer : Ada.Streams.Stream_Element_Array
        (1 .. Compressed_Upper_Bound (Dict, Decompressed) + 10);
      Last : Ada.Streams.Stream_Element_Offset;
      Done : Boolean := False;
   begin
      begin
         Compress (Dict, Decompressed, Buffer, Last);
         Done := True;
      exception
         when Error : others =>
            Test.Info ("During compression of """ & Decompressed & '"');
            Test.Report_Exception (Error, NT.Fail);
      end;

      if Done and then Buffer (1 .. Last) /= Compressed then
         Test.Fail ("Compression of """ & Decompressed & """ failed");
         Test.Info ("Found:   " & Image (Buffer (1 .. Last)));
         Test.Info ("Expected:" & Image (Compressed));
      end if;

      declare
         Buffer_2 : String
           (1 .. Decompressed_Length (Dict, Buffer (1 .. Last)));
         Last_2 : Natural;
         Done : Boolean := False;
      begin
         begin
            Decompress (Dict, Compressed, Buffer_2, Last_2);
            Done := True;
         exception
            when Error : others =>
               Test.Info ("During compression of """ & Decompressed & '"');
               Test.Report_Exception (Error, NT.Fail);
         end;

         if Done and then Buffer_2 (1 .. Last_2) /= Decompressed then
            Test.Fail ("Roundtrip for """ & Decompressed & """ failed");
            Test.Info ("Found """ & Buffer_2 (1 .. Last_2) & '"');
         end if;
      end;
   end Roundtrip_Test;



   -------------------------
   -- Complete Test Suite --
   -------------------------

   procedure All_Tests (Report : in out NT.Reporter'Class) is
   begin
      Sample_Strings (Report);
   end All_Tests;



   ----------------------
   -- Individual Tests --
   ----------------------

   procedure Sample_Strings (Report : in out NT.Reporter'Class) is
      Test : NT.Test := Report.Item ("Roundtrip on sample strings");
   begin
      Roundtrip_Test (Test, Original.Dictionary,
         "This is a small string",
         (254, 84, 76, 56, 172, 62, 173, 152, 62, 195, 70));
      Roundtrip_Test (Test, Original.Dictionary,
         "foobar",
         (220, 6, 90, 79));
      Roundtrip_Test (Test, Original.Dictionary,
         "the end",
         (1, 171, 61));
      Roundtrip_Test (Test, Original.Dictionary,
         "not-a-g00d-Exampl333",
         (132, 204, 4, 204, 59, 255, 1, 48, 48, 24, 204, 254, 69, 250, 4, 45,
           60, 22, 255, 2, 51, 51, 51));
      Roundtrip_Test (Test, Original.Dictionary,
         "Smaz is a simple compression library",
         (254, 83, 173, 219, 56, 172, 62, 226, 60, 87, 161, 45, 60, 33, 166,
           107, 205, 8, 90, 130, 12, 83));
      Roundtrip_Test (Test, Original.Dictionary,
         "Nothing is more difficult, and therefore more precious, "
           & "than to be able to decide",
         (254, 78, 223, 102, 99, 116, 45, 42, 11, 129, 44, 44, 131, 38, 22, 3,
           148, 63, 210, 68, 11, 45, 42, 11, 60, 33, 28, 144, 164, 36, 203,
           143, 96, 92, 25, 90, 87, 82, 165, 215, 237, 2));
      Roundtrip_Test (Test, Original.Dictionary,
         "this is an example of what works very well with smaz",
         (155, 56, 172, 41, 2, 250, 4, 45, 60, 87, 32, 159, 135, 65, 42, 254,
           107, 23, 231, 71, 145, 152, 243, 227, 10, 173, 219));
      Roundtrip_Test (Test, Original.Dictionary,
         "1000 numbers 2000 will 10 20 30 compress very little",
         (255, 3, 49, 48, 48, 48, 236, 38, 45, 92, 221, 0, 255, 3, 50, 48, 48,
           48, 243, 152, 0, 255, 1, 49, 48, 0, 255, 1, 50, 48, 0, 255, 1, 51,
           48, 161, 45, 60, 33, 166, 0, 231, 71, 151, 3, 3, 87));
   exception
      when Error : others => Test.Report_Exception (Error);
   end Sample_Strings;

end Natools.Smaz.Tests;








Added tests/natools-smaz-tests.ads version [5b00cffab8].































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------------------------------------------------------------------------------
-- Copyright (c) 2016, Natacha Porté                                        --
--                                                                          --
-- Permission to use, copy, modify, and distribute this software for any    --
-- purpose with or without fee is hereby granted, provided that the above   --
-- copyright notice and this permission notice appear in all copies.        --
--                                                                          --
-- THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES --
-- WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF         --
-- MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR  --
-- ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES   --
-- WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN    --
-- ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF  --
-- OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.           --
------------------------------------------------------------------------------

with Natools.Tests;

package Natools.Smaz.Tests is

   package NT renames Natools.Tests;

   procedure All_Tests (Report : in out NT.Reporter'Class);

   procedure Sample_Strings (Report : in out NT.Reporter'Class);

end Natools.Smaz.Tests;








Modified tests/test_all.adb
from [c6f080431e]
to [4cf3530b46].




︙


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with Natools.S_Expressions.Interpreter_Tests;
with Natools.S_Expressions.Lockable.Tests;
with Natools.S_Expressions.Parsers.Tests;
with Natools.S_Expressions.Printers.Tests;
with Natools.S_Expressions.Printers.Pretty.Tests;
with Natools.S_Expressions.Printers.Pretty.Config.Tests;
with Natools.S_Expressions.Templates.Tests;
with Natools.Smaz.Tests;
with Natools.Static_Hash_Maps.S_Expressions.Tests;
with Natools.String_Slice_Set_Tests;
with Natools.String_Slice_Tests;
with Natools.Time_IO.Tests;
with Natools.Time_Keys.Tests;
with Natools.Time_Statistics.Tests;
with Natools.Tests.Text_IO;




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   Report.Section ("S_Expressions.Printers.Pretty.Config");
   Natools.S_Expressions.Printers.Pretty.Config.Tests.All_Tests (Report);
   Report.End_Section;

   Report.Section ("S_Expressions.Templates");
   Natools.S_Expressions.Templates.Tests.All_Tests (Report);
   Report.End_Section;

   Report.Section ("Smaz");
   Natools.Smaz.Tests.All_Tests (Report);
   Report.End_Section;

   Report.Section ("Static_Hash_Maps.S_Expressions");
   Natools.Static_Hash_Maps.S_Expressions.Tests.All_Tests (Report);
   Report.End_Section;

   Report.Section ("String_Slices");
   Natools.String_Slice_Tests.All_Tests (Report);




︙












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