From 260b1eafc36c1741958cbb886f629050e5774984 Mon Sep 17 00:00:00 2001
From: Shadowfacts <me@shadowfacts.net>
Date: Tue, 25 Jun 2019 22:06:29 -0400
Subject: [PATCH] Add property delegate tests

---
 .../util/properties/ResettableLazyProperty.kt |  3 ++
 .../ObservableLateInitPropertyTests.kt        | 33 +++++++++++++++++
 .../properties/ResettableLazyPropertyTests.kt | 35 +++++++++++++++++++
 3 files changed, 71 insertions(+)
 create mode 100644 src/test/kotlin/net/shadowfacts/cacao/util/properties/ObservableLateInitPropertyTests.kt
 create mode 100644 src/test/kotlin/net/shadowfacts/cacao/util/properties/ResettableLazyPropertyTests.kt

diff --git a/src/main/kotlin/net/shadowfacts/cacao/util/properties/ResettableLazyProperty.kt b/src/main/kotlin/net/shadowfacts/cacao/util/properties/ResettableLazyProperty.kt
index dd7e106..753dab2 100644
--- a/src/main/kotlin/net/shadowfacts/cacao/util/properties/ResettableLazyProperty.kt
+++ b/src/main/kotlin/net/shadowfacts/cacao/util/properties/ResettableLazyProperty.kt
@@ -8,6 +8,9 @@ import kotlin.reflect.KProperty
 class ResettableLazyProperty<Value>(val initializer: () -> Value) {
 	var value: Value? = null
 
+	val isInitialized: Boolean
+		get() = value != null
+
 	operator fun getValue(thisRef: Any, property: KProperty<*>): Value {
 		if (value == null) {
 			value = initializer()
diff --git a/src/test/kotlin/net/shadowfacts/cacao/util/properties/ObservableLateInitPropertyTests.kt b/src/test/kotlin/net/shadowfacts/cacao/util/properties/ObservableLateInitPropertyTests.kt
new file mode 100644
index 0000000..8ae10b8
--- /dev/null
+++ b/src/test/kotlin/net/shadowfacts/cacao/util/properties/ObservableLateInitPropertyTests.kt
@@ -0,0 +1,33 @@
+package net.shadowfacts.cacao.util.properties
+
+import org.junit.jupiter.api.Assertions.*
+import org.junit.jupiter.api.Test
+import java.util.concurrent.CompletableFuture
+
+/**
+ * @author shadowfacts
+ */
+class ObservableLateInitPropertyTests {
+
+	class MyClass(callback: (String) -> Unit) {
+		val delegate = ObservableLateInitProperty(callback)
+		var prop by delegate
+	}
+
+	@Test
+	fun testObservation() {
+		val future = CompletableFuture<String>()
+		val obj = MyClass { future.complete(it) }
+		obj.prop = "test"
+		assertEquals("test", future.getNow(null))
+	}
+
+	@Test
+	fun testIsInitialized() {
+		val obj = MyClass {}
+		assertFalse(obj.delegate.isInitialized)
+		obj.prop = "test"
+		assertTrue(obj.delegate.isInitialized)
+	}
+
+}
\ No newline at end of file
diff --git a/src/test/kotlin/net/shadowfacts/cacao/util/properties/ResettableLazyPropertyTests.kt b/src/test/kotlin/net/shadowfacts/cacao/util/properties/ResettableLazyPropertyTests.kt
new file mode 100644
index 0000000..7e53cb1
--- /dev/null
+++ b/src/test/kotlin/net/shadowfacts/cacao/util/properties/ResettableLazyPropertyTests.kt
@@ -0,0 +1,35 @@
+package net.shadowfacts.cacao.util.properties
+
+import org.junit.jupiter.api.Assertions.*
+import org.junit.jupiter.api.Test
+
+/**
+ * @author shadowfacts
+ */
+class ResettableLazyPropertyTests {
+
+	class MyClass {
+		var iteration = 1
+		val delegate = ResettableLazyProperty { "test ${iteration++}" }
+		val prop by delegate
+	}
+
+	@Test
+	fun testResets() {
+		val obj = MyClass()
+		assertEquals("test 1", obj.prop)
+		obj.delegate.reset()
+		assertEquals("test 2", obj.prop)
+		assertEquals("test 2", obj.prop)
+	}
+
+	@Test
+	fun testIsInitialized() {
+		val obj = MyClass()
+		assertFalse(obj.delegate.isInitialized)
+		assertEquals("test 1", obj.prop)
+		assertTrue(obj.delegate.isInitialized)
+		obj.delegate.reset()
+		assertFalse(obj.delegate.isInitialized)
+	}
+}
\ No newline at end of file