feat: version bump via metadata on followed version

Author: taleodor

src/main/java/io/reliza/versioning/Version.java

@@ -971,18 +971,29 @@ private static void handleCalverOnSemverUpdates (Version v, Set<VersionElement>
 					 && schemaVeList.contains(VersionElement.NANO)) {
 				++v.nano;
 			} else {
-				if (StringUtils.isEmpty(v.modifier)) {
-					v.setModifier("1");
-				} else if (isInteger(v.modifier)) {
-					Integer i = Integer.parseInt(v.modifier) + 1;
-					v.setModifier(i.toString());
-				} else {
-					v.simpleBump();
-				}
+				resolveModifierMetadataUpdate(v, oldV);
 			}
 		}
 	}
 
+	private static void resolveModifierMetadataUpdate (Version v, Version oldV) {
+		if (StringUtils.isEmpty(v.modifier)) {
+			v.setModifier("1");
+		} else if (isInteger(v.modifier)) {
+			Integer i = Integer.parseInt(v.modifier) + 1;
+			v.setModifier(i.toString());
+		} else if (isInteger(oldV.metadata)) {
+			if (StringUtils.isEmpty(v.metadata) || !isInteger(v.metadata)) {
+				v.setMetadata("1");
+			} else {
+				Integer i = Integer.parseInt(v.metadata) + 1;
+				v.setMetadata(i.toString());
+			}
+		} else {
+			v.simpleBump();
+		}
+	}
+
 	private static boolean isInteger(String s) {
 		return s.matches("\\d+");
 	}

src/test/java/io/reliza/versioning/AppTest.java

@@ -1101,7 +1101,7 @@ void testParseVersion_BranchHyphenMicroMulti() {
 	}
 
 	@Test
-    public void testIdenticalSemverBumpViaModifier () {
+    public void testIdenticalSemverBumpViaModifier1 () {
     	String schema = "semver";
     	String oldVersion = "1.2.0-1";
 		String pin = "1.2.0-1";
@@ -1123,4 +1123,28 @@ public void testIdenticalSemverBumpViaModifier2 () {
 		String expectedV = "1.2.3-1";
 		assertEquals(expectedV, actualV);
     }
+
+	@Test
+    public void testIdenticalSemverBumpViaModifier3 () {
+    	String schema = "semver";
+    	String oldVersion = "1.2.0-11";
+		String pin = "1.2.0-2";
+		ActionEnum action = ActionEnum.BUMP;
+		Version newV = Version.getVersionFromPinAndOldVersion(schema, pin, oldVersion, action);
+		String actualV = newV.constructVersionString();
+		String expectedV = "1.2.0-12";
+		assertEquals(expectedV, actualV);
+    }
+
+	@Test
+    public void testIdenticalSemverBumpViaMetadata () {
+    	String schema = "semver";
+    	String oldVersion = "1.2.0-testfeature.1+49";
+		String pin = "1.2.0-testfeature.1+30";
+		ActionEnum action = ActionEnum.BUMP;
+		Version newV = Version.getVersionFromPinAndOldVersion(schema, pin, oldVersion, action);
+		String actualV = newV.constructVersionString();
+		String expectedV = "1.2.0-testfeature.1+50";
+		assertEquals(expectedV, actualV);
+    }
 }