X-Git-Url: https://git.pterodactylus.net/?a=blobdiff_plain;f=src%2Ftest%2Fkotlin%2Fnet%2Fpterodactylus%2Fsone%2Futils%2FOptionalsTest.kt;fp=src%2Ftest%2Fkotlin%2Fnet%2Fpterodactylus%2Fsone%2Futils%2FOptionalsTest.kt;h=2a49db06787d959ce40b99a11583911583bc31f1;hb=5a54ea664e862c910b1766d8ba0dd5efb6ea0151;hp=0000000000000000000000000000000000000000;hpb=2cdde02993e81e73a3b7edc3bcee13f56b43d6d5;p=Sone.git

diff --git a/src/test/kotlin/net/pterodactylus/sone/utils/OptionalsTest.kt b/src/test/kotlin/net/pterodactylus/sone/utils/OptionalsTest.kt
new file mode 100644
index 0000000..2a49db0
--- /dev/null
+++ b/src/test/kotlin/net/pterodactylus/sone/utils/OptionalsTest.kt
@@ -0,0 +1,38 @@
+package net.pterodactylus.sone.utils
+
+import com.google.common.base.Optional
+import org.hamcrest.MatcherAssert.assertThat
+import org.hamcrest.Matchers.equalTo
+import org.hamcrest.Matchers.nullValue
+import org.junit.Test
+
+/**
+ * Test for [Optional] utils.
+ */
+class OptionalsTest {
+
+	@Test
+	fun `present optional can be transformed with let`() {
+		val optional = Optional.of(1)
+		assertThat(optional.let { it + 1 }, equalTo(2))
+	}
+
+	@Test
+	fun `empty optional is transform to null with let`() {
+		val optional = Optional.absent<Int>()
+		assertThat(optional.let { it + 1 }, nullValue())
+	}
+
+	@Test
+	fun `1 as optional is correct optional`() {
+		val optional = 1.asOptional()
+		assertThat(optional.get(), equalTo(1))
+	}
+
+	@Test
+	fun `null as optional is asent optional`() {
+		val optional = null.asOptional()
+		assertThat(optional.isPresent, equalTo(false))
+	}
+
+}