1 files changed, 41 insertions, 0 deletions
diff --git a/app/src/test/kotlin/com/pitchedapps/frost/utils/PrefsTest.kt b/app/src/test/kotlin/com/pitchedapps/frost/utils/PrefsTest.kt
new file mode 100644
index 00000000..56ec4c02
--- /dev/null
+++ b/app/src/test/kotlin/com/pitchedapps/frost/utils/PrefsTest.kt
@@ -0,0 +1,41 @@
+package com.pitchedapps.frost.utils
+
+import org.junit.Before
+import org.junit.Test
+import kotlin.test.assertEquals
+
+/**
+ * Created by Allan Wang on 2017-05-31.
+ */
+class PrefsTest {
+
+    //Replicate logic
+    var test: Long = -1L
+        get() {
+            if (field == -1L) field = file
+            return field
+        }
+        set(value) {
+            field = value
+            if (value != -1L) file = value
+        }
+
+    var file: Long = -1L
+
+    @Before
+    fun verify() {
+        test = -1L
+        file = -1L
+    }
+
+    @Test
+    fun laziness() {
+        assertEquals(-1L, test)
+        file = 2L
+        assertEquals(2L, test)
+        file = -3L
+        assertEquals(2L, test)
+        test = 3L
+        assertEquals(3L, file)
+    }
+}
+\ No newline at end of file