1 files changed, 161 insertions, 0 deletions
diff --git a/common-parameters/src/test/java/org/onap/policy/common/parameters/TestItemValidator.java b/common-parameters/src/test/java/org/onap/policy/common/parameters/TestItemValidator.java
new file mode 100644
index 00000000..2a0394dc
--- /dev/null
+++ b/common-parameters/src/test/java/org/onap/policy/common/parameters/TestItemValidator.java
@@ -0,0 +1,161 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * ONAP
+ * ================================================================================
+ * Copyright (C) 2021 AT&T Intellectual Property. All rights reserved.
+ * ================================================================================
+ * 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.policy.common.parameters;
+
+import static java.lang.annotation.ElementType.FIELD;
+import static java.lang.annotation.RetentionPolicy.RUNTIME;
+import static org.assertj.core.api.Assertions.assertThat;
+import static org.assertj.core.api.Assertions.assertThatThrownBy;
+
+import java.lang.annotation.Annotation;
+import java.lang.annotation.Retention;
+import java.lang.annotation.Target;
+import java.lang.reflect.Method;
+import org.junit.Before;
+import org.junit.Test;
+import org.onap.policy.common.parameters.annotations.Items;
+import org.onap.policy.common.parameters.annotations.Min;
+import org.onap.policy.common.parameters.annotations.NotBlank;
+import org.onap.policy.common.parameters.annotations.NotNull;
+
+public class TestItemValidator extends ValidatorUtil {
+
+    // annotated fields - each field must have exactly one annotation
+
+    /**
+     * This annotation does not contain a method returning an array.
+     */
+    @Min(value = 0)
+    private int notArray;
+
+    /**
+     * This annotation doesn't contain any annotations that the {@link BeanValidator}
+     * recognizes.
+     */
+    @SimpleItems(simple = {@Simple})
+    private int mismatch;
+
+    /**
+     * Annotation with no sub-annotations.
+     */
+    @Items()
+    private int noAnnotations;
+
+    /**
+     * One matching sub-annotation.
+     */
+    @Items(notNull = {@NotNull})
+    private int match;
+
+    /**
+     * Excess matching sub-annotations of a single type.
+     */
+    @Items(notNull = {@NotNull, @NotNull})
+    private int excess;
+
+    /**
+     * Multiple matching annotations.
+     */
+    @Items(notNull = {@NotNull}, notBlank = {@NotBlank})
+    private String multiMatch;
+
+
+    @Before
+    public void setUp() {
+        bean = new BeanValidator();
+    }
+
+    @Test
+    public void testGetAnnotation() {
+        // no matches
+        assertThat(new ItemValidator(bean, getAnnot("noAnnotations"), true).isEmpty()).isTrue();
+
+        // had a match
+        assertThat(new ItemValidator(bean, getAnnot("match"), true).isEmpty()).isFalse();
+
+        // with an exception
+        IllegalAccessException ex = new IllegalAccessException("expected exception");
+
+        assertThatThrownBy(() -> new ItemValidator(bean, getAnnot("match"), true) {
+            @Override
+            protected <T extends Annotation> T getAnnotation2(Class<T> annotClass, Method method)
+                            throws IllegalAccessException {
+                throw ex;
+            }
+        }).hasCause(ex);
+
+        // multiple matches
+        ItemValidator validator = new ItemValidator(bean, getAnnot("multiMatch"), true);
+
+        BeanValidationResult result = new BeanValidationResult(MY_NAME, this);
+        validator.validateValue(result, MY_FIELD, HELLO);
+        assertThat(result.getResult()).isNull();
+
+        result = new BeanValidationResult(MY_NAME, this);
+        validator.validateValue(result, MY_FIELD, null);
+        assertThat(result.getResult()).isNotNull();
+
+        result = new BeanValidationResult(MY_NAME, this);
+        validator.validateValue(result, MY_FIELD, "");
+        assertThat(result.getResult()).isNotNull();
+    }
+
+    @Test
+    public void testItemValidatorBeanValidatorAnnotation() {
+        assertThat(new ItemValidator(bean, getAnnot("match")).isEmpty()).isFalse();
+    }
+
+    @Test
+    public void testItemValidatorBeanValidatorAnnotationBoolean() {
+        assertThat(new ItemValidator(bean, getAnnot("match"), true).isEmpty()).isFalse();
+
+        assertThat(new ItemValidator(bean, getAnnot("match"), false).isEmpty()).isTrue();
+    }
+
+    @Test
+    public void testGetAnnotation2() {
+        assertThat(new ItemValidator(bean, getAnnot("notArray"), true).isEmpty()).isTrue();
+        assertThat(new ItemValidator(bean, getAnnot("mismatch"), true).isEmpty()).isTrue();
+        assertThat(new ItemValidator(bean, getAnnot("noAnnotations"), true).isEmpty()).isTrue();
+
+        assertThat(new ItemValidator(bean, getAnnot("match"), true).isEmpty()).isFalse();
+
+        Annotation excess = getAnnot("excess");
+        assertThatThrownBy(() -> new ItemValidator(bean, excess, true)).isInstanceOf(IllegalArgumentException.class);
+    }
+
+    // these annotations are not recognized by the BeanValidator
+
+    @Retention(RUNTIME)
+    @Target(FIELD)
+    public @interface Simple {
+
+    }
+
+    @Retention(RUNTIME)
+    @Target(FIELD)
+    public @interface SimpleItems {
+        /**
+         * Validates that it's simple.
+         */
+        Simple[] simple() default {};
+    }
+}