Pair and Triple classes added

2012-09-07 20:41:59 +04:00
parent 57e63a8529
commit 8333448f10
3 changed files with 174 additions and 0 deletions
@@ -0,0 +1,91 @@
+package test.tuples
+
+import kotlin.test.assertTrue
+import org.junit.Test as test
+import kotlin.test.assertEquals
+
+class PairTest {
+    val p = Pair(1, "a")
+
+    test fun pairFirstAndSecond() {
+        assertTrue(p.first == 1)
+        assertTrue(p.second == "a")
+    }
+
+    test fun pairMultiAssignment() {
+        val (a, b) = p
+        assertTrue(a == 1)
+        assertTrue(b == "a")
+    }
+
+    test fun pairToString() {
+        assertTrue(p.toString() == "(1, a)")
+    }
+
+    test fun pairEquals() {
+        assertTrue(p == Pair(1, "a"))
+        assertTrue(p != Pair(2, "a"))
+        assertTrue(p != Pair(1, "b"))
+        assertTrue(!(p as Object).equals(null))
+        assertTrue((p as Any) != "")
+    }
+
+    test fun pairHashCode() {
+        assertTrue(p.hashCode() == Pair(1, "a").hashCode())
+        assertTrue(p.hashCode() != Pair(2, "a").hashCode())
+        assertTrue(Pair(null, "b").hashCode() != 0)
+        assertTrue(Pair("b", null).hashCode() != 0)
+        assertTrue(Pair(null, null).hashCode() == 0)
+    }
+
+    test fun pairHashSet() {
+        val s = hashSet(Pair(1, "a"), Pair(1, "b"), Pair(1, "a"))
+        assertTrue(s.size == 2)
+        assertTrue(s.contains(p))
+    }
+}
+
+class TripleTest {
+    val t = Triple(1, "a", 0.0)
+
+    test fun tripleFirstAndSecond() {
+        assertTrue(t.first == 1)
+        assertTrue(t.second == "a")
+        assertTrue(t.third == 0.0)
+    }
+
+    test fun tripleMultiAssignment() {
+        val (a, b, c) = t
+        assertTrue(a == 1)
+        assertTrue(b == "a")
+        assertTrue(c == 0.0)
+    }
+
+    test fun tripleToString() {
+        assertEquals("(1, a, 0.0)", t.toString())
+    }
+
+    test fun tripleEquals() {
+        assertTrue(t == Triple(1, "a", 0.0))
+        assertTrue(t != Triple(2, "a", 0.0))
+        assertTrue(t != Triple(1, "b", 0.0))
+        assertTrue(t != Triple(1, "a", 0.1))
+        assertTrue(!(t as Object).equals(null))
+        assertTrue((t as Any) != "")
+    }
+
+    test fun tripleHashCode() {
+        assertTrue(t.hashCode() == Triple(1, "a", 0.0).hashCode())
+        assertTrue(t.hashCode() != Triple(2, "a", 0.0).hashCode())
+        assertTrue(Triple(null, "b", 0.0).hashCode() != 0)
+        assertTrue(Triple("b", null, 0.0).hashCode() != 0)
+        assertTrue(Triple("b", 1, null).hashCode() != 0)
+        assertTrue(Triple(null, null, null).hashCode() == 0)
+    }
+
+    test fun tripleHashSet() {
+        val s = hashSet(Triple(1, "a", 0.0), Triple(1, "b", 0.0), Triple(1, "a", 0.0))
+        assertTrue(s.size == 2)
+        assertTrue(s.contains(t))
+    }
+}