All tests done other than Runtime tests

PicNetML.Tests/AttributeExtensionsTests.cs

@@ -0,0 +1,25 @@
+using NUnit.Framework;
+using PicNetML.Tests.TestUtils;
+
+namespace PicNetML.Tests
+{
+  [TestFixture]
+  public class AttributeExtensionsTests
+  {
+    [Test] public void test_attribute_to_enumerable_gives_all_distinct_nominal_vals()
+    {
+      var rt = TestingHelpers.LoadSmallRuntime<TitanicDataRow>("titanic_train.csv", 0, 10);
+      var pcclass = rt.Impl.attribute(1);
+      var values = pcclass.ToEnumerable();
+      Assert.AreEqual(new [] {"1", "2", "3"}, values);
+    }
+
+    [Test] public void test_attribute_to_enumerable_gives_nothing_on_numerics()
+    {
+      var rt = TestingHelpers.LoadSmallRuntime<TitanicDataRow2>("titanic_train.csv", 0, 10);
+      var age = rt.Impl.attribute(4);
+      var values = age.ToEnumerable();
+      Assert.AreEqual(new string [0], values);
+    }
+  }
+}

PicNetML.Tests/InstanceExtensionsTests.cs

@@ -0,0 +1,26 @@
+using System.Linq;
+using NUnit.Framework;
+using PicNetML.Tests.TestUtils;
+
+namespace PicNetML.Tests
+{
+  [TestFixture]
+  public class InstanceExtensionsTests
+  {
+    [Test] public void test_ToStrings_gets_the_string_representation_of_the_instance()
+    {
+      var rt = TestingHelpers.LoadSmallRuntime<TitanicDataRow2>("titanic_train.csv", 0, 3);
+      var instance = rt[0].Impl;
+      var strs = instance.ToStrings();
+      Assert.AreEqual(new [] {"0", "3", "Braund, Mr. Owen Harris", "male", "22", "1", "0", "A/5 21171", "7.25", "?", "S"}, strs);
+    }
+
+    [Test] public void test_ToEnumerableAttributes()
+    {
+      var rt = TestingHelpers.LoadSmallRuntime<TitanicDataRow>("titanic_train.csv", 0, 3);
+      var atts = rt[0].Impl.ToEnumerableAttributes();
+      var names = atts.Select(a => a.Name).ToArray();
+      Assert.AreEqual(new [] {"survived", "pclass", "sex", "embarked"}, names);
+    }
+  }
+}

PicNetML.Tests/InstancesExtensionsTests.cs

@@ -0,0 +1,38 @@
+using System.Linq;
+using NUnit.Framework;
+using PicNetML.Tests.TestUtils;
+
+namespace PicNetML.Tests
+{
+  [TestFixture] public class InstancesExtensionsTests 
+  {
+    [Test] public void test_GetAttrStrings()
+    {      
+      var rt = TestingHelpers.LoadSmallRuntime<TitanicDataRow>("titanic_train.csv", 0, 5);
+      var vals = rt.Impl.GetAttrStrings(1);
+      CollectionAssert.AreEqual(new [] {"3","1","3","1","3"}, vals);
+    }
+
+    [Test] public void test_GetAttrDoubles()
+    {
+      var rt = TestingHelpers.LoadSmallRuntime<TitanicDataRow>("titanic_train.csv", 0, 5);
+      var vals = rt.Impl.GetAttrDoubles(1);
+      CollectionAssert.AreEqual(new [] {2.0,0.0,2.0,0.0,2.0}, vals);
+    }
+
+    [Test] public void test_ToEnumerableAttributes()
+    {
+      var rt = TestingHelpers.LoadSmallRuntime<TitanicDataRow>("titanic_train.csv", 0, 5);
+      var atts = rt.Impl.ToEnumerableAttributes();
+      var names = atts.Select(a => a.Name).ToArray();
+      CollectionAssert.AreEqual(new [] {"survived", "pclass", "sex", "embarked"}, names);
+    }
+
+    [Test] public void test_ToEnumerable()
+    {
+      var rt = TestingHelpers.LoadSmallRuntime<TitanicDataRow>("titanic_train.csv", 0, 5);
+      var instances = rt.Impl.ToEnumerable();
+      Assert.AreEqual(5, instances.Count());
+    }
+  }
+}

PicNetML.Tests/PicNetML.Tests.csproj

@@ -94,12 +94,15 @@
     <Compile Include="Arff\Builder\InstanceBuilderTests.cs" />
     <Compile Include="Arff\CsvLoaderTests.cs" />
     <Compile Include="Asstn\BasicAssociationTests.cs" />
+    <Compile Include="AttributeExtensionsTests.cs" />
     <Compile Include="AttrSel\BasicAttributeSelectionTests.cs" />
     <Compile Include="Clss\BasicClassifierTests.cs" />
     <Compile Include="Clstr\BasicClustererTests.cs" />
     <Compile Include="Fltr\BasicFilteringTests.cs" />
     <Compile Include="HelpersTests.cs" />
     <Compile Include="IEnumerableExtensionsTests.cs" />
+    <Compile Include="InstanceExtensionsTests.cs" />
+    <Compile Include="InstancesExtensionsTests.cs" />
     <Compile Include="Properties\AssemblyInfo.cs" />
     <Compile Include="RuntimeHelpers\AttributesRemoverTests.cs" />
     <Compile Include="TestUtils\TestingHelpers.cs" />

PicNetML.Tests/RuntimeHelpers/AttributesRemoverTests.cs

@@ -9,7 +9,7 @@ [TestFixture] public class AttributesRemoverTests
   {
     [Test] public void test_removing_attributes_by_index()
     {
-      var rt = Runtime.LoadFromFile<TitanicDataRow>(0, TestingHelpers.GetResourceFileName("titanic_train.csv"));
+      var rt = TestingHelpers.LoadSmallRuntime<TitanicDataRow>("titanic_train.csv", 0, 3);
       var ar = new AttributesRemover(rt);
       var initial = rt.EnumerateAttributes.Select(a => a.Name).ToArray();
       ar.RemoveAttributes(2, 3);
@@ -20,7 +20,7 @@ [Test] public void test_removing_attributes_by_index()
 
     [Test] public void test_removing_attributes_by_names()
     {
-      var rt = Runtime.LoadFromFile<TitanicDataRow>(0, TestingHelpers.GetResourceFileName("titanic_train.csv"));
+      var rt = TestingHelpers.LoadSmallRuntime<TitanicDataRow>("titanic_train.csv", 0, 3);
       var ar = new AttributesRemover(rt);
       var initial = rt.EnumerateAttributes.Select(a => a.Name).ToArray();
       ar.RemoveAttributes("embarked", "sex");
@@ -31,7 +31,7 @@ [Test] public void test_removing_attributes_by_names()
 
     [Test] public void test_keep_attributes_by_index()
     {
-      var rt = Runtime.LoadFromFile<TitanicDataRow>(0, TestingHelpers.GetResourceFileName("titanic_train.csv"));
+      var rt = TestingHelpers.LoadSmallRuntime<TitanicDataRow>("titanic_train.csv", 0, 3);
       var ar = new AttributesRemover(rt);
       var initial = rt.EnumerateAttributes.Select(a => a.Name).ToArray();
       ar.KeepAttributes(0, 2, 3);
@@ -42,7 +42,7 @@ [Test] public void test_keep_attributes_by_index()
 
     [Test] public void test_keep_attributes_by_names()
     {
-      var rt = Runtime.LoadFromFile<TitanicDataRow>(0, TestingHelpers.GetResourceFileName("titanic_train.csv"));
+      var rt = TestingHelpers.LoadSmallRuntime<TitanicDataRow>("titanic_train.csv", 0, 3);
       var ar = new AttributesRemover(rt);
       var initial = rt.EnumerateAttributes.Select(a => a.Name).ToArray();
       ar.KeepAttributes("survived", "embarked", "sex");

PicNetML.Tests/TestUtils/TestingHelpers.cs

@@ -1,13 +1,23 @@
 using System.IO;
+using System.Linq;
 
-namespace PicNetML.Tests {
+namespace PicNetML.Tests.TestUtils {
   public static class TestingHelpers {
-     public static string ReadResourceFile(string filename) {
-       return File.ReadAllText(GetResourceFileName(filename));
-     }
 
     public static string GetResourceFileName(string filename) {
       return @"..\..\resources\" + filename;
     }
+
+    public static Runtime LoadSmallRuntime<T>(string filename, int classidx, int count) where T : new() {
+      var file = GetResourceFileName(filename);
+      using (var fs = File.OpenText(file)) {
+        string[] lines = Enumerable.Range(0, count + 1).          
+          Select(i => fs.ReadLine()).
+          Skip(1).
+          ToArray();
+        var rows = Runtime.LoadRowsFromLines<T>(lines);
+        return Runtime.LoadFromRows(classidx, rows);
+      }            
+    }
   }
 }

PicNetML.Tests/TestUtils/TitanicDataRow.cs

@@ -15,4 +15,19 @@ public class TitanicDataRow {
     [IgnoreFeature] public string cabin { get; set; }
     [Nominal("C,Q,S")] public string embarked { get; set; }
   }
+
+  public class TitanicDataRow2 {
+    [IgnoreFeature] public string passengerid { get; set; }
+    [Nominal("0,1")] public string survived { get; set; }
+    [Nominal("1,2,3")] public string pclass { get; set; }
+    public string name { get; set; }
+    [Nominal("male,female")] public string sex { get; set; }
+    public double age { get; set; }
+    public int sibsp { get; set; }
+    public int parch { get; set; }
+    public string ticket { get; set; }
+    public string fare { get; set; }
+    public string cabin { get; set; }
+    [Nominal("C,Q,S")] public string embarked { get; set; }
+  }
 }

PicNetML/InstancesExtensions.cs

@@ -1,4 +1,5 @@
 using System.Collections.Generic;
+using java.lang;
 using weka.core;
 
 namespace PicNetML
@@ -20,7 +21,10 @@ public static IEnumerable<string> ToStrings(this Instance source)
       var num = source.numAttributes();
       var arr = new string[num];      
       for (int i = 0; i < num; i++) {
-        arr[i] = source.stringValue(i);
+        // Nominal, String, Date
+        try { arr[i] = source.stringValue(i); }
+        // Numerics
+        catch (IllegalArgumentException) { arr[i] = source.value(i).ToString(); }
       }
       return arr;
     }

PicNetML/PicNetML.nuspec

@@ -2,7 +2,7 @@
 <package >
   <metadata>
     <id>PicNetML</id>
-    <version>0.0.14</version>
+    <version>0.0.15</version>
     <authors>guidot</authors>
     <owners>guidot</owners>
     <licenseUrl>http://www.gnu.org/licenses/gpl.html</licenseUrl>