Add sample examples to test redis.io build

src/test/java/io/redis/examples/async/StringExample.java

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+// EXAMPLE: set_tutorial
+package io.redis.examples.async;
+
+import io.lettuce.core.*;
+import io.lettuce.core.api.async.RedisAsyncCommands;
+import io.lettuce.core.api.StatefulRedisConnection;
+
+// REMOVE_START
+import org.junit.Test;
+// REMOVE_END
+
+import java.util.*;
+import java.util.concurrent.CompletableFuture;
+
+// REMOVE_START
+import static org.junit.Assert.assertEquals;
+// REMOVE_END
+
+public class StringExample {
+  // REMOVE_START
+  @Test
+  // REMOVE_END
+  public void run() {
+    RedisClient redisClient = RedisClient.create("redis://localhost:6379");
+
+    try (StatefulRedisConnection<String, String> connection = redisClient.connect()) {
+      RedisAsyncCommands<String, String> asyncCommands = connection.async();
+
+      // STEP_START set_get
+      CompletableFuture<Void> setAndGet = asyncCommands.set("bike:1", "Deimos")
+          .thenCompose(v -> {
+            System.out.println(v); // OK
+            // REMOVE_START
+            assertEquals("OK", v);
+            // REMOVE_END
+            return asyncCommands.get("bike:1");
+          })
+          // REMOVE_START
+          .thenApply(res -> {
+            assertEquals("Deimos", res);
+            return res;
+          })
+          // REMOVE_END
+          .thenAccept(System.out::println) // Deimos
+          .toCompletableFuture();
+      // STEP_END
+
+      // STEP_START setnx_xx
+      CompletableFuture<Void> setnx = asyncCommands.setnx("bike:1", "bike")
+          .thenCompose(v -> {
+            System.out.println(v); // false (because key already exists)
+            // REMOVE_START
+            assertEquals(false, v);
+            // REMOVE_END
+            return asyncCommands.get("bike:1");
+          })
+          // REMOVE_START
+          .thenApply(res -> {
+            assertEquals("Deimos", res);
+            return res;
+          })
+          // REMOVE_END
+          .thenAccept(System.out::println) // Deimos (value is unchanged)
+          .toCompletableFuture();
+
+      // set the value to "bike" if it already exists
+      CompletableFuture<Void> setxx = asyncCommands.set("bike:1", "bike", SetArgs.Builder.xx())
+          //REMOVE_START
+          .thenApply(res -> {
+            assertEquals("OK", res);
+            return res;
+          })
+          // REMOVE_END
+          .thenAccept(System.out::println) // OK
+          .toCompletableFuture();
+      // STEP_END
+
+      // STEP_START mset
+      Map<String, String> bikeMap = new HashMap<>();
+      bikeMap.put("bike:1", "Deimos");
+      bikeMap.put("bike:2", "Ares");
+      bikeMap.put("bike:3", "Vanth");
+
+      CompletableFuture<Void> mset = asyncCommands.mset(bikeMap)
+          .thenCompose(v -> {
+            System.out.println(v); // OK
+            return asyncCommands.mget("bike:1", "bike:2", "bike:3");
+          })
+          // REMOVE_START
+          .thenApply(res -> {
+            List<KeyValue<String, String>> expected = new ArrayList<>(Arrays.asList(
+                KeyValue.just("bike:1", "Deimos"),
+                KeyValue.just("bike:2", "Ares"),
+                KeyValue.just("bike:3", "Vanth")
+            ));
+            assertEquals(expected, res);
+            return res;
+          })
+          // REMOVE_END
+          .thenAccept(System.out::println) // [KeyValue[bike:1, Deimos], KeyValue[bike:2, Ares], KeyValue[bike:3, Vanth]]
+          .toCompletableFuture();
+      // STEP_END
+
+      // STEP_START incr
+      CompletableFuture<Void> incrby = asyncCommands.set("total_crashes", "0")
+          .thenCompose(v -> asyncCommands.incr("total_crashes"))
+          .thenCompose(v -> {
+            System.out.println(v); // 1
+            // REMOVE_START
+            assertEquals(1L, v.longValue());
+            // REMOVE_END
+            return asyncCommands.incrby("total_crashes", 10);
+          })
+          // REMOVE_START
+          .thenApply(res -> {
+            assertEquals(11L, res.longValue());
+            return res;
+          })
+          // REMOVE_END
+          .thenAccept(System.out::println) // 11
+          .toCompletableFuture();
+      // STEP_END
+
+      CompletableFuture.allOf(setAndGet, setnx, setxx, mset, incrby).join();
+
+    } finally {
+      redisClient.shutdown();
+    }
+  }
+}

src/test/java/io/redis/examples/reactive/StringExample.java

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+// EXAMPLE: set_tutorial
+package io.redis.examples.reactive;
+
+import io.lettuce.core.*;
+import io.lettuce.core.api.reactive.RedisReactiveCommands;
+import io.lettuce.core.api.StatefulRedisConnection;
+// REMOVE_START
+import org.junit.Test;
+// REMOVE_END
+import reactor.core.publisher.Mono;
+
+import java.util.*;
+
+// REMOVE_START
+import static org.junit.Assert.assertEquals;
+// REMOVE_END
+
+public class StringExample {
+  // REMOVE_START
+  @Test
+  // REMOVE_END
+  public void run() {
+    RedisClient redisClient = RedisClient.create("redis://localhost:6379");
+
+    try (StatefulRedisConnection<String, String> connection = redisClient.connect()) {
+      RedisReactiveCommands<String, String> reactiveCommands = connection.reactive();
+
+      // STEP_START set_get
+      Mono<Void> setAndGet = reactiveCommands.set("bike:1", "Deimos")
+          .doOnNext(v -> {
+            System.out.println(v); // OK
+            // REMOVE_START
+            assertEquals("OK", v);
+            // REMOVE_END
+          })
+          .flatMap(v -> reactiveCommands.get("bike:1"))
+          .doOnNext(res -> {
+            // REMOVE_START
+            assertEquals("Deimos", res);
+            // REMOVE_END
+            System.out.println(res); // Deimos
+          })
+          .then();
+      // STEP_END
+
+      // STEP_START setnx_xx
+      Mono<Void> setnx = reactiveCommands.setnx("bike:1", "bike")
+          .doOnNext(v -> {
+            System.out.println(v); // false (because key already exists)
+            // REMOVE_START
+            assertEquals(false, v);
+            // REMOVE_END
+          })
+          .flatMap(v -> reactiveCommands.get("bike:1"))
+          .doOnNext(res -> {
+            // REMOVE_START
+            assertEquals("Deimos", res);
+            // REMOVE_END
+            System.out.println(res); // Deimos (value is unchanged)
+          })
+          .then();
+
+      Mono<Void> setxx = reactiveCommands.set("bike:1", "bike", SetArgs.Builder.xx())
+          .doOnNext(res -> {
+            // REMOVE_START
+            assertEquals("OK", res);
+            // REMOVE_END
+            System.out.println(res); // OK
+          })
+          .then();
+      // STEP_END
+
+      // STEP_START mset
+      Map<String, String> bikeMap = new HashMap<>();
+      bikeMap.put("bike:1", "Deimos");
+      bikeMap.put("bike:2", "Ares");
+      bikeMap.put("bike:3", "Vanth");
+
+      Mono<Void> mset = reactiveCommands.mset(bikeMap)
+          .doOnNext(System.out::println) // OK
+          .flatMap(v -> reactiveCommands.mget("bike:1", "bike:2", "bike:3").collectList())
+          .doOnNext(res -> {
+            List<KeyValue<String, String>> expected = new ArrayList<>(Arrays.asList(
+                KeyValue.just("bike:1", "Deimos"),
+                KeyValue.just("bike:2", "Ares"),
+                KeyValue.just("bike:3", "Vanth")
+            ));
+            // REMOVE_START
+            assertEquals(expected, res);
+            // REMOVE_END
+            System.out.println(res); // [KeyValue[bike:1, Deimos], KeyValue[bike:2, Ares], KeyValue[bike:3, Vanth]]
+          })
+          .then();
+      // STEP_END
+
+      // STEP_START incr
+      Mono<Void> incrby = reactiveCommands.set("total_crashes", "0")
+          .flatMap(v -> reactiveCommands.incr("total_crashes"))
+          .doOnNext(v -> {
+            System.out.println(v); // 1
+            // REMOVE_START
+            assertEquals(1L, v.longValue());
+            // REMOVE_END
+          })
+          .flatMap(v -> reactiveCommands.incrby("total_crashes", 10))
+          .doOnNext(res -> {
+            // REMOVE_START
+            assertEquals(11L, res.longValue());
+            // REMOVE_END
+            System.out.println(res); // 11
+          })
+          .then();
+      // STEP_END
+
+      Mono.when(setAndGet, setnx, setxx, mset, incrby).block();
+
+    } finally {
+      redisClient.shutdown();
+    }
+  }
+}