Unit tests for AttributeUpdates

src/test/java/com/jcabi/dynamo/AttributeUpdatesTest.java

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+/**
+ * Copyright (c) 2012-2015, jcabi.com
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met: 1) Redistributions of source code must retain the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer. 2) Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer in the documentation and/or other materials provided
+ * with the distribution. 3) Neither the name of the jcabi.com nor
+ * the names of its contributors may be used to endorse or promote
+ * products derived from this software without specific prior written
+ * permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT
+ * NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
+ * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
+ * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
+ * OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+package com.jcabi.dynamo;
+
+import com.amazonaws.services.dynamodbv2.model.AttributeAction;
+import com.amazonaws.services.dynamodbv2.model.AttributeValue;
+import com.amazonaws.services.dynamodbv2.model.AttributeValueUpdate;
+import org.apache.commons.lang3.StringUtils;
+import org.hamcrest.MatcherAssert;
+import org.hamcrest.Matchers;
+import org.junit.Test;
+import org.mockito.Mockito;
+
+/**
+ * Test case for {@link AttributesUpdates}.
+ * @author Mihai Andronache (amihaiemil@gmail.com)
+ * @version $Id$
+ * @since 0.22
+ */
+@SuppressWarnings("PMD.TooManyMethods")
+public final class AttributeUpdatesTest {
+
+    /**
+     * AttributesUpdates can tell if it's empty or not.
+     */
+    @Test
+    public void tellsIfEmptyOrNot() {
+        final AttributeUpdates attr = new AttributeUpdates();
+        MatcherAssert.assertThat(attr.isEmpty(), Matchers.is(Boolean.TRUE));
+        MatcherAssert.assertThat(
+            attr.with("testkey", Mockito.mock(AttributeValueUpdate.class))
+                .isEmpty(),
+            Matchers.is(Boolean.FALSE)
+        );
+    }
+
+    /**
+     * AttributesUpdates can add a new AttributeValueUpdate.
+     */
+    @Test
+    public void addsAttributeValueUpdate() {
+        final AttributeUpdates attr = new AttributeUpdates();
+        MatcherAssert.assertThat(attr.size(), Matchers.is(0));
+        MatcherAssert.assertThat(
+            attr.with("testkey1", Mockito.mock(AttributeValueUpdate.class))
+                .size(),
+            Matchers.is(1)
+        );
+    }
+
+    /**
+     * AttributesUpdates can add a new AttributeValue.
+     */
+    @Test
+    public void addsAttributeValue() {
+        final AttributeUpdates attr = new AttributeUpdates();
+        MatcherAssert.assertThat(attr.size(), Matchers.is(0));
+        MatcherAssert.assertThat(
+            attr.with("testkey2", Mockito.mock(AttributeValue.class)).size(),
+            Matchers.is(1)
+        );
+    }
+
+    /**
+     * AttributesUpdates can add a new Object.
+     */
+    @Test
+    public void addsObject() {
+        final AttributeUpdates attr = new AttributeUpdates();
+        MatcherAssert.assertThat(attr.size(), Matchers.is(0));
+        MatcherAssert.assertThat(
+            attr.with("testkey3", "value here").size(),
+            Matchers.is(1)
+        );
+    }
+
+    /**
+     * AttributesUpdates can return its key Set.
+     */
+    @Test
+    public void returnsKeySet() {
+        final String firstkey = "key1";
+        final AttributeUpdates attr = new AttributeUpdates()
+            .with(firstkey, "valuediff").with("key2", "value2");
+        MatcherAssert.assertThat(
+            attr.keySet().size(),
+            Matchers.is(2)
+        );
+        MatcherAssert.assertThat(
+            attr.keySet().iterator().next(),
+            Matchers.equalTo(firstkey)
+        );
+    }
+
+    /**
+     * AttributesUpdates can return its key Set.
+     */
+    @Test
+    public void returnsValues() {
+        final String firstvalue = "value3";
+        final AttributeUpdates attr = new AttributeUpdates()
+            .with("key3", firstvalue).with("key4", "value4");
+        MatcherAssert.assertThat(
+            attr.values().size(),
+            Matchers.is(2)
+        );
+        MatcherAssert.assertThat(
+            attr.values().iterator().next().getValue().getS(),
+            Matchers.equalTo(firstvalue)
+        );
+    }
+
+    /**
+     * AttributesUpdates can return its entry Set.
+     */
+    @Test
+    public void returnsEntries() {
+        final AttributeUpdates attr = new AttributeUpdates()
+            .with("key5", "value5").with("key6", "value7");
+        MatcherAssert.assertThat(
+            attr.entrySet().size(),
+            Matchers.is(2)
+        );
+    }
+
+    /**
+     * AttributesUpdates can return an entry by the key.
+     */
+    @Test
+    public void getsEntry() {
+        final String key = "key10";
+        final AttributeUpdates attr = new AttributeUpdates()
+            .with(key, "value10");
+        MatcherAssert.assertThat(
+            attr.get(key),
+            Matchers.notNullValue()
+        );
+    }
+
+    /**
+     * AttributesUpdates can tell if it contains a key.
+     */
+    @Test
+    public void containsKey() {
+        final String key = "key11";
+        final AttributeUpdates attr = new AttributeUpdates()
+            .with(key, "value11").with("otherkey1", "othervalue1");
+        MatcherAssert.assertThat(
+            attr.containsKey(key),
+            Matchers.is(Boolean.TRUE)
+        );
+    }
+
+    /**
+     * AttributesUpdates can tell if it contains a value.
+     */
+    @Test
+    public void containsValue() {
+        final String value = "attrv";
+        final AttributeUpdates attr = new AttributeUpdates()
+            .with("attrkey", value).with("otherkey", "othervalue");
+        MatcherAssert.assertThat(
+            attr.containsValue(
+                new AttributeValueUpdate(
+                    new AttributeValue(value), AttributeAction.PUT
+                )
+            ),
+            Matchers.is(Boolean.TRUE)
+        );
+    }
+
+    /**
+     * AttributesUpdates can return a string representation of itself.
+     */
+    @Test
+    public void canTurnToString() {
+        final AttributeUpdates attr = new AttributeUpdates()
+            .with("onekey", "onevalue").with("secondkey", "secondvalue");
+        MatcherAssert.assertThat(
+            attr.toString(),
+            Matchers.equalTo(
+                StringUtils.join(
+                    "onekey={Value: {S: onevalue,},Action: PUT}; ",
+                    "secondkey={Value: {S: secondvalue,},Action: PUT}"
+                )
+            )
+        );
+    }
+
+    /**
+     * AttributesUpdates can add the content of another Map.
+     */
+    @Test
+    public void addsMap() {
+        final AttributeUpdates attr = new AttributeUpdates();
+        MatcherAssert.assertThat(attr.size(), Matchers.is(0));
+        MatcherAssert.assertThat(
+            attr.with("testkey8", new AttributeUpdates().with("key", "value"))
+                .size(),
+            Matchers.is(1)
+        );
+    }
+
+    /**
+     * AttributesUpdates.put(...) throws exception when called.
+     */
+    @Test(expected = UnsupportedOperationException.class)
+    public void putThrowsException() {
+        new AttributeUpdates().put(
+            "key9",
+            Mockito.mock(AttributeValueUpdate.class)
+        );
+    }
+
+    /**
+     * AttributesUpdates.putAll(...) throws exception when called.
+     */
+    @Test(expected = UnsupportedOperationException.class)
+    public void putAllThrowsException() {
+        new AttributeUpdates().putAll(new AttributeUpdates());
+    }
+
+    /**
+     * AttributesUpdates.remove(...) throws exception when called.
+     */
+    @Test(expected = UnsupportedOperationException.class)
+    public void removeThrowsException() {
+        new AttributeUpdates().remove("object to remove");
+    }
+
+    /**
+     * AttributesUpdates.clear() throws exception when called.
+     */
+    @Test(expected = UnsupportedOperationException.class)
+    public void clearThrowsException() {
+        new AttributeUpdates().clear();
+    }
+}