#212 - Provide Kotlin Coroutine extensions on UpdatedRowsFetchSpec.

Original pull request: #213.

Author: pull-vert

src/main/kotlin/org/springframework/data/r2dbc/core/UpdatedRowsFetchSpecExtensions.kt

@@ -0,0 +1,26 @@
+/*
+ * Copyright 2018-2019 the original author or authors.
+ *
+ * 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
+ *
+ *      https://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.
+ */
+package org.springframework.data.r2dbc.core
+
+import kotlinx.coroutines.reactive.awaitSingle
+
+/**
+ * Coroutines variant of [UpdatedRowsFetchSpec.rowsUpdated].
+ *
+ * @author Fred Montariol
+ */
+suspend fun UpdatedRowsFetchSpec.awaitRowsUpdated(): Int =
+		rowsUpdated().awaitSingle()

src/test/kotlin/org/springframework/data/r2dbc/core/UpdatedRowsFetchSpecExtensionsTests.kt

@@ -0,0 +1,47 @@
+/*
+ * Copyright 2018-2019 the original author or authors.
+ *
+ * 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
+ *
+ *      https://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.
+ */
+package org.springframework.data.r2dbc.core
+
+import io.mockk.every
+import io.mockk.mockk
+import io.mockk.verify
+import kotlinx.coroutines.runBlocking
+import org.assertj.core.api.Assertions.assertThat
+import org.junit.Test
+import reactor.core.publisher.Mono
+
+/**
+ * Unit tests for [UpdatedRowsFetchSpec] extensions.
+ *
+ * @author Fred Montariol
+ */
+class UpdatedRowsFetchSpecExtensionsTests {
+
+	@Test // gh-212
+	fun awaitRowsUpdatedWithValue() {
+
+		val spec = mockk<UpdatedRowsFetchSpec>()
+		every { spec.rowsUpdated() } returns Mono.just(42)
+
+		runBlocking {
+			assertThat(spec.awaitRowsUpdated()).isEqualTo(42)
+		}
+
+		verify {
+			spec.rowsUpdated()
+		}
+	}
+}