Unit test for polygon ID parser

lib/vdyp-common/src/test/java/ca/bc/gov/nrs/vdyp/io/parse/model/VdypPolygonDescriptionParserTest.java

@@ -0,0 +1,127 @@
+package ca.bc.gov.nrs.vdyp.io.parse.model;
+
+import static org.hamcrest.MatcherAssert.assertThat;
+import static org.hamcrest.Matchers.*;
+import static org.junit.jupiter.api.Assertions.*;
+
+import java.io.IOException;
+import java.util.ArrayList;
+import java.util.NoSuchElementException;
+
+import org.hamcrest.Matchers;
+import org.junit.jupiter.api.Test;
+
+import ca.bc.gov.nrs.vdyp.io.parse.common.ResourceParseException;
+import ca.bc.gov.nrs.vdyp.model.LayerType;
+import ca.bc.gov.nrs.vdyp.model.UtilizationClass;
+import ca.bc.gov.nrs.vdyp.test.MockFileResolver;
+import ca.bc.gov.nrs.vdyp.test.TestUtils;
+import ca.bc.gov.nrs.vdyp.test.VdypMatchers;
+
+import static ca.bc.gov.nrs.vdyp.test.VdypMatchers.*;
+
+class VdypPolygonDescriptionParserTest {
+
+	@Test
+	void testEmpty() throws IOException, ResourceParseException {
+		var controlMap = TestUtils.loadControlMap();
+		var resolver = new MockFileResolver("testResolver");
+
+		try (var is = TestUtils.makeInputStream("")) {
+
+			resolver.addStream("test.dat", is);
+
+			var parser = new VdypPolygonParser().map("test.dat", resolver, controlMap);
+
+			var stream = parser.get();
+
+			assertTrue(!stream.hasNext(), "stream is not empty");
+
+			assertThrows(NoSuchElementException.class, () -> stream.next());
+		}
+	}
+
+	@Test
+	void testOnePoly() throws IOException, ResourceParseException {
+		var controlMap = TestUtils.loadControlMap();
+		var resolver = new MockFileResolver("testResolver");
+
+		try (var is = TestUtils.makeInputStream("01002 S000001 00     1970")) {
+
+			resolver.addStream("test.dat", is);
+
+			var parser = new VdypPolygonDescriptionParser().map("test.dat", resolver, controlMap);
+
+			var stream = parser.get();
+
+			assertTrue(stream.hasNext(), "stream is empty");
+
+			var result = stream.next();
+
+			assertThat(
+					result,
+					isPolyId("01002 S000001 00", 1970)
+			);
+
+			assertTrue(!stream.hasNext(), "stream is not empty");
+
+			assertThrows(NoSuchElementException.class, () -> stream.next());
+
+		}
+	}
+
+	@Test
+	void testMultiplePoly() throws IOException, ResourceParseException {
+		var controlMap = TestUtils.loadControlMap();
+		var resolver = new MockFileResolver("testResolver");
+
+		try (
+				var is = TestUtils.makeInputStream(
+						"01002 S000001 00     1970",
+						"01002 S000002 00     1970",
+						"01002 S000003 00     1973"
+
+				)
+		) {
+
+			resolver.addStream("test.dat", is);
+
+			var parser = new VdypPolygonDescriptionParser().map("test.dat", resolver, controlMap);
+
+			var stream = parser.get();
+
+			assertTrue(stream.hasNext(), "stream is empty");
+
+			var result = stream.next();
+
+			assertThat(
+					result,
+					isPolyId("01002 S000001 00", 1970)
+			);
+
+			assertTrue(stream.hasNext(), "stream is empty");
+
+			result = stream.next();
+
+			assertThat(
+					result,
+					isPolyId("01002 S000002 00", 1970)
+			);
+
+			assertTrue(stream.hasNext(), "stream is empty");
+
+			result = stream.next();
+
+			assertThat(
+					result,
+					isPolyId("01002 S000003 00", 1973)
+			);
+
+			assertTrue(!stream.hasNext(), "stream is not empty");
+
+			assertThrows(NoSuchElementException.class, () -> stream.next());
+
+		}
+	}
+
+}