test: add tests for commons parser (#2487)

streampipes-commons/src/test/java/org/apache/streampipes/commons/parser/BooleanParserTest.java

@@ -0,0 +1,53 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You 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.
+ *
+ */
+
+package org.apache.streampipes.commons.parser;
+
+
+import org.junit.Before;
+import org.junit.Test;
+
+import static org.junit.Assert.assertFalse;
+import static org.junit.Assert.assertTrue;
+
+public class BooleanParserTest {
+
+  private BooleanParser parser;
+
+  @Before
+  public void setup() {
+    parser = new BooleanParser();
+  }
+
+  @Test
+  public void parseTrue() {
+    assertTrue(parser.parse("true"));
+  }
+
+  @Test
+  public void parseFalse() {
+    assertFalse(parser.parse("false"));
+  }
+
+  @Test
+  public void parseNotABoolean() {
+    assertFalse(parser.parse("not a boolean"));
+  }
+
+
+}

streampipes-commons/src/test/java/org/apache/streampipes/commons/parser/FloatParserTest.java

@@ -0,0 +1,44 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You 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.
+ *
+ */
+
+package org.apache.streampipes.commons.parser;
+
+import org.junit.Before;
+import org.junit.Test;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertThrows;
+
+public class FloatParserTest {
+  private FloatParser parser;
+
+  @Before
+  public void setup() {
+    parser = new FloatParser();
+  }
+
+  @Test
+  public void parseValidFloat() {
+    assertEquals(123.45f, parser.parse("123.45"), 0.0001);
+  }
+
+  @Test
+  public void parseInvalidFloat() {
+    assertThrows(NumberFormatException.class, () -> parser.parse("stringValue"));
+  }
+}

streampipes-commons/src/test/java/org/apache/streampipes/commons/parser/IntegerParserTest.java

@@ -0,0 +1,44 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You 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.
+ *
+ */
+
+package org.apache.streampipes.commons.parser;
+
+import org.junit.Before;
+import org.junit.Test;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertThrows;
+
+public class IntegerParserTest {
+  private IntegerParser parser;
+
+  @Before
+  public void setup() {
+    parser = new IntegerParser();
+  }
+
+  @Test
+  public void parseValidInteger() {
+    assertEquals(1, (int) parser.parse("1"));
+  }
+
+  @Test
+  public void parseInvalidInteger() {
+    assertThrows(NumberFormatException.class, () -> parser.parse("stringValue"));
+  }
+}

streampipes-commons/src/test/java/org/apache/streampipes/commons/parser/StringParserTest.java

@@ -0,0 +1,34 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You 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.
+ *
+ */
+
+package org.apache.streampipes.commons.parser;
+
+import org.junit.Test;
+
+import static org.junit.Assert.assertEquals;
+
+public class StringParserTest {
+
+  @Test
+  public void testParse() {
+    StringParser stringParser = new StringParser();
+
+    String input = "test string";
+    assertEquals(input, stringParser.parse(input));
+  }
+}