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-rw-r--r--Scala/funsets/src/test/scala/funsets/FunSetSuite.scala15
1 files changed, 15 insertions, 0 deletions
diff --git a/Scala/funsets/src/test/scala/funsets/FunSetSuite.scala b/Scala/funsets/src/test/scala/funsets/FunSetSuite.scala
index 88dac91..7c3fd53 100644
--- a/Scala/funsets/src/test/scala/funsets/FunSetSuite.scala
+++ b/Scala/funsets/src/test/scala/funsets/FunSetSuite.scala
@@ -162,4 +162,19 @@ class FunSetSuite extends FunSuite {
assert(!contains(s, 3), "Diff none")
}
}
+
+ test("filter") {
+ new TestSets {
+ val s = filter(s1, (x => x == 1))
+ assert(!contains(s, 0), "Filter none")
+ assert(contains(s, 1), "Filter 1")
+ assert(!contains(s, 2), "Filter none")
+ assert(!contains(s, 3), "Filter none")
+ val v = filter(s1, (x => x == 0))
+ assert(!contains(v, 0), "Filter none")
+ assert(!contains(v, 1), "Filter none")
+ assert(!contains(v, 2), "Filter none")
+ assert(!contains(v, 3), "Filter none")
+ }
+ }
}