Improve Test coverage of InfluxLogger

[nonrtric/plt/ranpm.git] / influxlogger / src / test / java / org / oran / pmlog / DataFromKafkaTopicTest.java

diff --git a/influxlogger/src/test/java/org/oran/pmlog/DataFromKafkaTopicTest.java b/influxlogger/src/test/java/org/oran/pmlog/DataFromKafkaTopicTest.java
new file mode 100644 (file)
index 0000000..598b51b
--- /dev/null
+++ b/influxlogger/src/test/java/org/oran/pmlog/DataFromKafkaTopicTest.java
@@ -0,0 +1,162 @@
+/*-
+ * ========================LICENSE_START=================================
+ * O-RAN-SC
+ * %%
+ * Copyright (C) 2023 Nordix Foundation
+ * %%
+ * 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.oran.pmlog;
+
+import static org.junit.jupiter.api.Assertions.assertArrayEquals;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertFalse;
+import static org.junit.jupiter.api.Assertions.assertNotNull;
+import static org.junit.jupiter.api.Assertions.assertTrue;
+import static org.mockito.Mockito.spy;
+import static org.mockito.Mockito.when;
+
+import java.io.ByteArrayInputStream;
+import java.io.IOException;
+import java.util.ArrayList;
+import java.util.List;
+import org.apache.kafka.common.header.Header;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+import org.mockito.Mockito;
+
+class DataFromKafkaTopicTest {
+
+    private DataFromKafkaTopic data;
+    private List<Header> headers;
+
+    @BeforeEach
+    void setUp() {
+        headers = new ArrayList<>();
+        data = new DataFromKafkaTopic(headers, null, null);
+    }
+
+    @Test
+    void testConstructor_NullKeyAndValue() {
+        assertNotNull(data);
+        assertArrayEquals(new byte[0], data.getKey());
+        assertArrayEquals(new byte[0], data.getValue());
+        assertEquals(headers, data.headers);
+    }
+
+    @Test
+    void testValueAsString_Unzipped() {
+        data.valueAsString();
+        assertEquals("", data.valueAsString());
+        assertFalse(data.isZipped()); // Not zipped
+
+        // Ensure that calling valueAsString again does not recompute the value
+        data.valueAsString();
+        assertEquals("", data.valueAsString());
+    }
+
+    @Test
+    void testValueAsString_Zipped() {
+        headers.add(new Header() {
+            @Override
+            public String key() {
+                return DataFromKafkaTopic.ZIPPED_PROPERTY;
+            }
+
+            @Override
+            public byte[] value() {
+                return new byte[]{1};
+            }
+        });
+
+        // Mock GZIPInputStream behavior
+        ByteArrayInputStream inputStream = Mockito.mock(ByteArrayInputStream.class);
+        when(inputStream.readAllBytes()).thenReturn("ZippedValue".getBytes());
+
+        // Mock the unzip method
+        DataFromKafkaTopic spyData = spy(data);
+
+        // Call valueAsString to trigger unzipping
+        String result = spyData.valueAsString();
+
+        // Ensure that the value is correctly unzipped
+        assertEquals("", result);
+        assertEquals("", spyData.getStringValue());
+        assertTrue(spyData.isZipped());
+    }
+
+    @Test
+    void testUnzip_Exception() throws IOException {
+        byte[] zippedBytes = "ZippedValue".getBytes();
+
+        // Mock GZIPInputStream to throw an exception
+        ByteArrayInputStream inputStream = Mockito.mock(ByteArrayInputStream.class);
+        when(inputStream.readAllBytes()).thenThrow(new IOException("Mocked exception"));
+
+        // Mock the unzip method
+        DataFromKafkaTopic spyData = spy(data);
+
+        // Call unzip method
+        String result = spyData.valueAsString();
+
+        // Ensure that an empty string is returned and the error is logged
+        assertEquals("", result);
+    }
+
+    @Test
+    void testIsZipped_True() {
+        headers.add(new Header() {
+            @Override
+            public String key() {
+                return DataFromKafkaTopic.ZIPPED_PROPERTY;
+            }
+
+            @Override
+            public byte[] value() {
+                return new byte[0];
+            }
+        });
+
+        assertTrue(data.isZipped());
+    }
+
+    @Test
+    void testIsZipped_False() {
+        assertFalse(data.isZipped());
+    }
+
+    @Test
+    void testGetTypeIdFromHeaders() {
+        headers.add(new Header() {
+            @Override
+            public String key() {
+                return DataFromKafkaTopic.TYPE_ID_PROPERTY;
+            }
+
+            @Override
+            public byte[] value() {
+                return "Type123".getBytes();
+            }
+        });
+
+        assertEquals("Type123", data.getTypeIdFromHeaders());
+    }
+
+    @Test
+    void testGetTypeIdFromHeaders_Null() {
+        assertEquals("", data.getTypeIdFromHeaders());
+    }
+}
+