diff options
Diffstat (limited to 'core/source/test/scala')
-rwxr-xr-x | core/source/test/scala/com/rockymadden/stringmetric/similarity/OverlapMetricSpec.scala | 77 |
1 files changed, 77 insertions, 0 deletions
diff --git a/core/source/test/scala/com/rockymadden/stringmetric/similarity/OverlapMetricSpec.scala b/core/source/test/scala/com/rockymadden/stringmetric/similarity/OverlapMetricSpec.scala new file mode 100755 index 0000000..32c9650 --- /dev/null +++ b/core/source/test/scala/com/rockymadden/stringmetric/similarity/OverlapMetricSpec.scala @@ -0,0 +1,77 @@ +package com.rockymadden.stringmetric.similarity + +import com.rockymadden.stringmetric.ScalaTest +import org.junit.runner.RunWith +import org.scalatest.junit.JUnitRunner + +@RunWith(classOf[JUnitRunner]) +final class OverlapMetricSpec extends ScalaTest { + import OverlapMetricSpec.Metric + + "OverlapMetric" should provide { + "compare method" when passed { + "empty arguments" should returns { + "None" in { + Metric.compare("", "")(1).isDefined should be (false) + Metric.compare("abc", "")(1).isDefined should be (false) + Metric.compare("", "xyz")(1).isDefined should be (false) + } + } + "equal arguments" should returns { + "1" in { + Metric.compare("abc", "abc")(1).get should be (1) + Metric.compare("abc", "abc")(2).get should be (1) + Metric.compare("abc", "abc")(3).get should be (1) + } + } + "unequal arguments" should returns { + "0" in { + Metric.compare("abc", "xyz")(1).get should be (0) + Metric.compare("abc", "xyz")(2).get should be (0) + Metric.compare("abc", "xyz")(3).get should be (0) + } + } + "invalid arguments" should returns { + "None" in { + Metric.compare("n", "naght")(2).isDefined should be (false) + Metric.compare("night", "n")(2).isDefined should be (false) + Metric.compare("ni", "naght")(3).isDefined should be (false) + Metric.compare("night", "na")(3).isDefined should be (false) + } + } + "valid arguments" should returns { + "Double indicating distance" in { + Metric.compare("bob", "bobman") (1).get should be (1) + Metric.compare("bob", "manbobman") (1).get should be (1) + Metric.compare("night", "nacht")(1).get should be (0.6) + Metric.compare("night", "naght")(1).get should be (0.8) + Metric.compare("context", "contact")(1).get should be (0.7142857142857143) + + Metric.compare("night", "nacht")(2).get should be (0.25) + Metric.compare("night", "naght")(2).get should be (0.5) + Metric.compare("context", "contact")(2).get should be (0.5) + Metric.compare("contextcontext", "contact")(2).get should be (0.5) + Metric.compare("context", "contactcontact")(2).get should be (0.5) + Metric.compare("ht", "nacht")(2).get should be (1) + Metric.compare("xp", "nacht")(2).get should be (0) + Metric.compare("ht", "hththt")(2).get should be (1) + + Metric.compare("night", "nacht")(3).get should be (0) + Metric.compare("night", "naght")(3).get should be (0.3333333333333333) + Metric.compare("context", "contact")(3).get should be (0.4) + } + } + } + } + "OverlapMetric companion object" should provide { + "pass-through compare method" should returns { + "same value as class" in { + OverlapMetric.compare("context", "contact")(3).get should be (0.4) + } + } + } +} + +object OverlapMetricSpec { + private final val Metric = OverlapMetric() +} |