添加单元测试

MRFramework/MRFrameworkTests/DeviceInfoTest.swift

@@ -26,4 +26,25 @@ extension DeviceInfoTest {
         let model = MRDevice.modelVersion
         let model = MRDevice.modelVersion
         XCTAssert(model == "x86_64", "这都能为空?")
         XCTAssert(model == "x86_64", "这都能为空?")
     }
     }
+    
+    func testSystemVersion() {
+        let version = MRDevice.systemVersion
+        XCTAssert(version == "13.1")
+        XCTAssert(version > "13.0.1")
+        XCTAssert(version >= "13.0.2")
+        XCTAssert(version >= "13.1")
+        XCTAssert(version < "13.1.1")
+        XCTAssert(version < "14.1.1")
+        XCTAssert(version <= "14.0.1")
+        XCTAssert(version <= "13.1")
+        
+        XCTAssert("13.1" == version)
+        XCTAssert("13.0.1" < version)
+        XCTAssert("13.0.2" <= version)
+        XCTAssert("13.1" <= version)
+        XCTAssert("13.1.1" > version)
+        XCTAssert("14.1.1" > version)
+        XCTAssert("14.0.1" >= version)
+        XCTAssert("13.1" >= version)
+    }
 }
 }