From f6abcf5dd79ea9ee8e076cdeff71644012c1f7ac Mon Sep 17 00:00:00 2001
From: Zafar Khaja <zafarkhaja@gmail.com>
Date: Thu, 23 Jul 2015 14:03:04 +0300
Subject: [PATCH] Add methods for checking major and minor compatibility

---
 .../com/github/zafarkhaja/semver/Version.java | 33 +++++++++++++++++++
 .../github/zafarkhaja/semver/VersionTest.java | 18 ++++++++++
 2 files changed, 51 insertions(+)

diff --git a/src/main/java/com/github/zafarkhaja/semver/Version.java b/src/main/java/com/github/zafarkhaja/semver/Version.java
index 55c9053..f5076bf 100644
--- a/src/main/java/com/github/zafarkhaja/semver/Version.java
+++ b/src/main/java/com/github/zafarkhaja/semver/Version.java
@@ -560,6 +560,39 @@ public class Version implements Comparable<Version> {
         return compareTo(other) <= 0;
     }
 
+    /**
+     * Checks if this version is compatible with the
+     * other version in terms of their major versions.
+     *
+     * When checking compatibility no assumptions
+     * are made about the versions' precedence.
+     *
+     * @param other the other version to check with
+     * @return {@code true} if this version is compatible with
+     *         the other version or {@code false} otherwise
+     * @since 0.10.0
+     */
+    public boolean isMajorVersionCompatible(Version other) {
+        return this.getMajorVersion() == other.getMajorVersion();
+    }
+
+    /**
+     * Checks if this version is compatible with the
+     * other version in terms of their minor versions.
+     *
+     * When checking compatibility no assumptions
+     * are made about the versions' precedence.
+     *
+     * @param other the other version to check with
+     * @return {@code true} if this version is compatible with
+     *         the other version or {@code false} otherwise
+     * @since 0.10.0
+     */
+    public boolean isMinorVersionCompatible(Version other) {
+        return this.getMajorVersion() == other.getMajorVersion()
+            && this.getMinorVersion() == other.getMinorVersion();
+    }
+
     /**
      * Checks if this version equals the other version.
      *
diff --git a/src/test/java/com/github/zafarkhaja/semver/VersionTest.java b/src/test/java/com/github/zafarkhaja/semver/VersionTest.java
index e7c747a..f9e6a92 100644
--- a/src/test/java/com/github/zafarkhaja/semver/VersionTest.java
+++ b/src/test/java/com/github/zafarkhaja/semver/VersionTest.java
@@ -314,6 +314,24 @@ public class VersionTest {
             assertTrue(v.satisfies(gte("1.0.0").and(lt("2.0.0"))));
             assertFalse(v.satisfies(gte("2.0.0").and(lt("3.0.0"))));
         }
+
+        @Test
+        public void shouldCheckIfMajorVersionCompatible() {
+            Version v1 = Version.valueOf("1.0.0");
+            Version v2 = Version.valueOf("1.2.3");
+            Version v3 = Version.valueOf("2.0.0");
+            assertTrue(v1.isMajorVersionCompatible(v2));
+            assertFalse(v1.isMajorVersionCompatible(v3));
+        }
+
+        @Test
+        public void shouldCheckIfMinorVersionCompatible() {
+            Version v1 = Version.valueOf("1.1.1");
+            Version v2 = Version.valueOf("1.1.2");
+            Version v3 = Version.valueOf("1.2.3");
+            assertTrue(v1.isMinorVersionCompatible(v2));
+            assertFalse(v1.isMinorVersionCompatible(v3));
+        }
     }
 
     public static class EqualsMethodTest {