1 files changed, 53 insertions, 0 deletions
diff --git a/core/src/test/kotlin/ca/allanwang/kau/kotlin/DebounceTest.kt b/core/src/test/kotlin/ca/allanwang/kau/kotlin/DebounceTest.kt
new file mode 100644
index 0000000..12bc5a4
--- /dev/null
+++ b/core/src/test/kotlin/ca/allanwang/kau/kotlin/DebounceTest.kt
@@ -0,0 +1,53 @@
+package ca.allanwang.kau.kotlin
+
+import org.jetbrains.anko.doAsync
+import org.junit.Test
+import kotlin.test.assertEquals
+
+/**
+ * Created by Allan Wang on 2017-08-05.
+ */
+class DebounceTest {
+
+    @Test
+    fun basic() {
+        var i = 0
+        val debounce = debounce(20) { i++ }
+        assertEquals(0, i, "i should start as 0")
+        (1..5).forEach { debounce() }
+        Thread.sleep(50)
+        assertEquals(1, i, "Debouncing did not cancel previous requests")
+    }
+
+    @Test
+    fun basicExtension() {
+        var i = 0
+        val increment: () -> Unit = { i++ }
+        (1..5).forEach { increment() }
+        assertEquals(5, i, "i should be 5")
+        val debounce = increment.debounce(50)
+        (6..10).forEach { debounce() }
+        assertEquals(5, i, "i should not have changed")
+        Thread.sleep(100)
+        assertEquals(6, i, "i should increment to 6")
+    }
+
+    @Test
+    fun multipleDebounces() {
+        var i = 0
+        val debounce = debounce<Int>(10) { i += it }
+        debounce(1) //ignore -> i = 0
+        Thread.sleep(5)
+        assertEquals(0, i)
+        debounce(2) //accept -> i = 2
+        Thread.sleep(15)
+        assertEquals(2, i)
+        debounce(4) //ignore -> i = 2
+        Thread.sleep(5)
+        assertEquals(2, i)
+        debounce(8) //accept -> i = 10
+        Thread.sleep(15)
+        assertEquals(10, i)
+    }
+
+}
+\ No newline at end of file