Added extension properties test.

src/main/kotlin/net/thauvin/erik/gradle/semver/SemverConfig.kt

@@ -74,7 +74,7 @@ open class SemverConfig @Inject constructor(
         get() = "$keysPrefix$field"
     var keysPrefix = DEFAULT_KEYS_PREFIX
 
-    // Properties
+    // Extension Properties
     val semver: String
         get() = semVersion.semver
     val version: String

src/test/kotlin/net/thauvin/erik/gradle/semver/SemverConfigSpec.kt

@@ -90,7 +90,8 @@ object SemverConfigSpec : Spek({
                     config.preReleasePrefixKey,
                     config.buildMetaKey,
                     config.buildMetaPrefixKey,
-                    config.separatorKey)
+                    config.separatorKey
+                )
             }
 
             Then("all config keys should start with test.xxxx") {
@@ -98,6 +99,26 @@ object SemverConfigSpec : Spek({
                     assertTrue(k.startsWith("test."), k)
                 }
             }
+
+            When("checking extension properties") {}
+
+            Then("semver should be defaults") {
+                val defaultSemver =
+                    "${Version.DEFAULT_MAJOR}${Version.DEFAULT_SEPARATOR}${Version.DEFAULT_MINOR}${Version.DEFAULT_SEPARATOR}${Version.DEFAULT_PATCH}"
+                assertEquals(config.semver, defaultSemver)
+                assertEquals(
+                    "${config.major}${config.separator}${config.minor}${config.separator}${config.patch}",
+                    defaultSemver
+                )
+                assertEquals(config.preRelease, Version.DEFAULT_EMPTY)
+                assertEquals(config.buildMeta, Version.DEFAULT_EMPTY)
+                assertEquals(config.preReleasePrefix, Version.DEFAULT_PRERELEASE_PREFIX)
+                assertEquals(config.buildMetaPrefix, Version.DEFAULT_BUILDMETA_PREFIX)
+            }
+
+            Then("semver = version") {
+                assertEquals(config.semver, config.version)
+            }
         }
     }
 })