#43 Add test for isAlreadyLatestVersion

Co-Authored-By: Sandra Parsick <[email protected]>

src/main/kotlin/io/github/georgberky/maven/plugins/depsupdate/GitProvider.kt

@@ -9,4 +9,4 @@ interface GitProvider : AutoCloseable {
     fun commit(author: String, email: String, message: String)
     fun push(localBranchName: String)
     fun checkoutInitialBranch()
-}
+}

src/main/kotlin/io/github/georgberky/maven/plugins/depsupdate/VersionUpdate.kt

@@ -16,5 +16,4 @@ abstract class VersionUpdate(
         println("latestVersion.equals(version) = ${latestVersion.equals(version)}")
         return latestVersion != "null" && latestVersion != version
     }
-
 }

src/test/kotlin/io/github/georgberky/maven/plugins/depsupdate/VersionUpdateTest.kt

@@ -0,0 +1,57 @@
+package io.github.georgberky.maven.plugins.depsupdate
+
+import org.assertj.core.api.Assertions.assertThat
+import org.jsoup.nodes.Document
+import org.junit.jupiter.params.ParameterizedTest
+import org.junit.jupiter.params.provider.Arguments
+import org.junit.jupiter.params.provider.Arguments.arguments
+import org.junit.jupiter.params.provider.MethodSource
+import java.util.stream.Stream
+
+internal class VersionUpdateTest {
+    @ParameterizedTest
+    @MethodSource("sameVersionUpdates")
+    fun `is latest version returns true if version numbers are the same`(current: String, latest: String) {
+        val versionUpdate = object : VersionUpdate("someGroupId", "someArtifactId", current, latest) {
+            override fun updatedPom(): Document {
+                throw Exception("should not be called")
+            }
+        }
+
+        assertThat(versionUpdate.isAlreadyLatestVersion())
+            .isTrue()
+    }
+
+    @ParameterizedTest
+    @MethodSource("differentVersionUpdates")
+    fun `is latest version returns false if version numbers differ`(current: String, latest: String) {
+        val versionUpdate = object : VersionUpdate("someGroupId", "someArtifactId", current, latest) {
+            override fun updatedPom(): Document {
+                throw Exception("should not be called")
+            }
+        }
+
+        assertThat(versionUpdate.isAlreadyLatestVersion())
+            .isFalse()
+    }
+
+    companion object {
+        @JvmStatic
+        fun sameVersionUpdates(): Stream<Arguments> {
+            return Stream.of(
+                arguments("1.0.0", "1.0.0"),
+                arguments("1.1.0", "1.1.0"),
+                arguments("1.0.1", "1.0.1"),
+            )
+        }
+
+        @JvmStatic
+        fun differentVersionUpdates(): Stream<Arguments> {
+            return Stream.of(
+                arguments("1.0.0", "2.0.0"),
+                arguments("1.1.0", "2.1.0"),
+                arguments("1.0.1", "2.0.1"),
+            )
+        }
+    }
+}