public void TestWindowSizeOne() {
var windowFeatureGenerator = new WindowFeatureGenerator(
new IdentityFeatureGenerator(), 1, 1);
const int testTokenIndex = 2;
var features = new List<string>();
windowFeatureGenerator.CreateFeatures(features, testSentence, testTokenIndex, null);
Assert.AreEqual(3, features.Count);
}
public void TestWindowAtBeginOfSentence() {
var windowFeatureGenerator = new WindowFeatureGenerator(new IdentityFeatureGenerator(), 1, 0);
const int testTokenIndex = 0;
var features = new List<string>();
windowFeatureGenerator.CreateFeatures(features, testSentence, testTokenIndex, null);
Assert.AreEqual(1, features.Count);
Assert.AreEqual(features[0], testSentence[testTokenIndex]);
}
public void TestWindowAtEndOfSentence() {
var windowFeatureGenerator = new WindowFeatureGenerator(
new IdentityFeatureGenerator(), 0, 1);
var testTokenIndex = testSentence.Length - 1;
var features = new List<string>();
windowFeatureGenerator.CreateFeatures(features, testSentence, testTokenIndex, null);
Assert.AreEqual(1, features.Count);
Assert.AreEqual(features[0], testSentence[testTokenIndex]);
}
public void TestForCorrectFeatures() {
var windowFeatureGenerator = new WindowFeatureGenerator(
new IdentityFeatureGenerator(), 2, 2);
const int testTokenIndex = 3;
var features = new List<string>();
windowFeatureGenerator.CreateFeatures(features, testSentence, testTokenIndex, null);
Assert.AreEqual(5, features.Count);
Assert.True(features.Contains(WindowFeatureGenerator.PREV_PREFIX + "2" +
testSentence[testTokenIndex - 2]));
Assert.True(features.Contains(WindowFeatureGenerator.PREV_PREFIX + "1" +
testSentence[testTokenIndex - 1]));
Assert.True(features.Contains(testSentence[testTokenIndex]));
Assert.True(features.Contains(WindowFeatureGenerator.NEXT_PREFIX + "1" +
testSentence[testTokenIndex + 1]));
Assert.True(features.Contains(WindowFeatureGenerator.NEXT_PREFIX + "2" +
testSentence[testTokenIndex + 2]));
}
