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Diffstat (limited to 'tests/run/t978.scala')
-rw-r--r-- | tests/run/t978.scala | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/tests/run/t978.scala b/tests/run/t978.scala new file mode 100644 index 000000000..e87e7054a --- /dev/null +++ b/tests/run/t978.scala @@ -0,0 +1,38 @@ +class Foo(val n: Int) { + override def hashCode = n % 2 // pretty bad hash + override def equals(other: Any): Boolean = other match { + case f: Foo => f.n == n + case _ => false + } + + override def toString = "" + n +} + +object Test extends dotty.runtime.LegacyApp { + val set = new collection.mutable.HashSet[Foo] +// val set = new collection.jcl.HashSet[Foo] + + val max = 200 + for (x <- 1 to max) + set += new Foo(x) + + testRemove(2) + testExists(2) + + def testRemove(m: Int): Unit = { + for (x <- 1 to max; if x % m == 0) { + val f = new Foo(x) + set -= f + assert(!(set contains f)) + testExists(m) + } + } + + def testExists(m: Int): Unit = { + for (x <- 1 to max; if x % m == 1) { + val f = new Foo(x) + assert(set contains f, "For element: " + f + " set: " + set) + } + } + +} |