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-rw-r--r--core/src/test/kotlin/ca/allanwang/kau/kotlin/DebounceTest.kt53
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