elharo commented on code in PR #179:
URL: 
https://github.com/apache/maven-toolchains-plugin/pull/179#discussion_r3631152722


##########
src/test/java/org/apache/maven/plugins/toolchain/jdk/ToolchainDiscovererTest.java:
##########
@@ -51,4 +56,87 @@ void testDiscovery() {
         assertTrue(persistedToolchains.getToolchains().stream()
                 .anyMatch(tc -> tc.getProvides().containsKey(CURRENT)));
     }
+
+    @Test
+    void testVersionComparatorSimple() {
+        ToolchainDiscoverer discoverer = new ToolchainDiscoverer();
+
+        List<ToolchainModel> list = new ArrayList<>();
+        list.add(toolchain("8"));
+        list.add(toolchain("17"));
+        list.add(toolchain("11"));
+
+        list.sort(discoverer.version());
+
+        assertEquals("17", list.get(0).getProvides().getProperty("version"));
+        assertEquals("11", list.get(1).getProvides().getProperty("version"));
+        assertEquals("8", list.get(2).getProvides().getProperty("version"));
+    }
+
+    @Test
+    void testVersionComparatorMultiPart() {
+        ToolchainDiscoverer discoverer = new ToolchainDiscoverer();
+
+        List<ToolchainModel> list = new ArrayList<>();
+        list.add(toolchain("11.0.1"));
+        list.add(toolchain("11.0.31"));
+        list.add(toolchain("17.0.1"));
+        list.add(toolchain("1.8"));
+
+        list.sort(discoverer.version());
+
+        assertEquals("17.0.1", 
list.get(0).getProvides().getProperty("version"));
+        assertEquals("11.0.31", 
list.get(1).getProvides().getProperty("version"));
+        assertEquals("11.0.1", 
list.get(2).getProvides().getProperty("version"));
+        assertEquals("1.8", list.get(3).getProvides().getProperty("version"));
+    }
+
+    @Test
+    void testVersionComparatorMultiDigitSegments() {
+        ToolchainDiscoverer discoverer = new ToolchainDiscoverer();
+
+        List<ToolchainModel> list = new ArrayList<>();
+        list.add(toolchain("17.0.2"));
+        list.add(toolchain("17.0.10"));
+
+        list.sort(discoverer.version());
+
+        assertEquals("17.0.10", 
list.get(0).getProvides().getProperty("version"));
+        assertEquals("17.0.2", 
list.get(1).getProvides().getProperty("version"));
+    }

Review Comment:
   @copilot done



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