1 files changed, 62 insertions, 0 deletions
diff --git a/sources/hv-collector-test-utils/src/main/kotlin/org/onap/dcae/collectors/veshv/tests/utils/arrow.kt b/sources/hv-collector-test-utils/src/main/kotlin/org/onap/dcae/collectors/veshv/tests/utils/arrow.kt
new file mode 100644
index 00000000..54913744
--- /dev/null
+++ b/sources/hv-collector-test-utils/src/main/kotlin/org/onap/dcae/collectors/veshv/tests/utils/arrow.kt
@@ -0,0 +1,62 @@
+/*
+ * ============LICENSE_START=======================================================
+ * dcaegen2-collectors-veshv
+ * ================================================================================
+ * Copyright (C) 2018 NOKIA
+ * ================================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * ============LICENSE_END=========================================================
+ */
+package org.onap.dcae.collectors.veshv.tests.utils
+
+import arrow.core.Either
+import arrow.core.identity
+import org.assertj.core.api.AbstractAssert
+import org.assertj.core.api.Assertions.assertThat
+import org.assertj.core.api.ObjectAssert
+
+/**
+ * @author Piotr Jaszczyk <piotr.jaszczyk@nokia.com>
+ * @since September 2018
+ */
+class EitherAssert<A, B>(actual: Either<A, B>)
+    : AbstractAssert<EitherAssert<A, B>, Either<A, B>>(actual, EitherAssert::class.java) {
+
+    fun isLeft(): EitherAssert<A, B> {
+        isNotNull()
+        isInstanceOf(Either.Left::class.java)
+        return myself
+    }
+
+    fun left(): ObjectAssert<A> {
+        isLeft()
+        val left =  actual.fold(
+                ::identity,
+                { throw AssertionError("should be left") })
+        return assertThat(left)
+    }
+
+    fun isRight(): EitherAssert<A, B> {
+        isNotNull()
+        isInstanceOf(Either.Right::class.java)
+        return myself
+    }
+
+    fun right(): ObjectAssert<B> {
+        isRight()
+        val right =  actual.fold(
+                { throw AssertionError("should be right") },
+                ::identity)
+        return assertThat(right)
+    }
+}