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Merge pull request #985 from lilai23/bootstrap
【fix】启动参数支持索引环境变量
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108 changes: 108 additions & 0 deletions
108
...gentcore-premain/src/test/java/com/huawei/sermant/premain/common/BootArgsBuilderTest.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,108 @@ | ||
| package com.huawei.sermant.premain.common; | ||
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| import static org.junit.Assert.assertEquals; | ||
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| import org.junit.AfterClass; | ||
| import org.junit.BeforeClass; | ||
| import org.junit.Test; | ||
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| import java.lang.reflect.Field; | ||
| import java.lang.reflect.InvocationTargetException; | ||
| import java.lang.reflect.Method; | ||
| import java.util.Collections; | ||
| import java.util.HashMap; | ||
| import java.util.Map; | ||
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| /** | ||
| * BootArgsBuilder单元 | ||
| * | ||
| * @author lilai | ||
| * @since 2022-11-26 | ||
| */ | ||
| public class BootArgsBuilderTest { | ||
| private static final Map<String, String> envMap = new HashMap<>(); | ||
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| /** | ||
| * 单元测试前设置环境变量 | ||
| * | ||
| * @throws NoSuchFieldException | ||
| * @throws IllegalAccessException | ||
| */ | ||
| @BeforeClass | ||
| public static void setUp() throws NoSuchFieldException, IllegalAccessException { | ||
| envMap.put("serviceAName", "demo"); | ||
| envMap.put("serviceAVersion", "1.0"); | ||
| envMap.put("serviceBName", ""); | ||
| envMap.put("serviceBVersion", ""); | ||
| setEnv(envMap); | ||
| } | ||
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| /** | ||
| * 单元测试结束后清理环境变量 | ||
| * | ||
| * @throws NoSuchFieldException | ||
| * @throws IllegalAccessException | ||
| */ | ||
| @AfterClass | ||
| public static void tearDown() throws NoSuchFieldException, IllegalAccessException { | ||
| envMap.put("serviceAName", ""); | ||
| envMap.put("serviceAVersion", ""); | ||
| setEnv(envMap); | ||
| } | ||
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| /** | ||
| * 测试getActualValue方法 | ||
| * | ||
| * @throws NoSuchMethodException | ||
| * @throws InvocationTargetException | ||
| * @throws IllegalAccessException | ||
| * @throws NoSuchFieldException | ||
| */ | ||
| @Test | ||
| public void testGetActualValue() throws NoSuchMethodException, InvocationTargetException, IllegalAccessException, NoSuchFieldException { | ||
| Method method = BootArgsBuilder.class.getDeclaredMethod("getActualValue", String.class); | ||
| method.setAccessible(true); | ||
| assertEquals("demo", method.invoke(BootArgsBuilder.class, "${serviceAName:A}")); | ||
| assertEquals("1.0", method.invoke(BootArgsBuilder.class, "${serviceAVersion:2.0}")); | ||
| assertEquals("B", method.invoke(BootArgsBuilder.class, "${serviceBName:B}")); | ||
| assertEquals("2.0", method.invoke(BootArgsBuilder.class, "${serviceBVersion:2.0}")); | ||
| } | ||
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| /** | ||
| * 设置环境变量 | ||
| * | ||
| * @param envMap | ||
| * @throws NoSuchFieldException | ||
| * @throws IllegalAccessException | ||
| */ | ||
| private static void setEnv(Map envMap) throws NoSuchFieldException, IllegalAccessException { | ||
| try { | ||
| // win系统 | ||
| Class<?> processEnvironmentClass = Class.forName("java.lang.ProcessEnvironment"); | ||
| Field theEnvironmentField = processEnvironmentClass.getDeclaredField("theEnvironment"); | ||
| theEnvironmentField.setAccessible(true); | ||
| Map env1 = (Map) theEnvironmentField.get(null); | ||
| env1.putAll(envMap); | ||
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| // linux/macos系统 | ||
| Field theCaseInsensitiveEnvironmentField = processEnvironmentClass.getDeclaredField("theCaseInsensitiveEnvironment"); | ||
| theCaseInsensitiveEnvironmentField.setAccessible(true); | ||
| Map env2 = (Map) theCaseInsensitiveEnvironmentField.get(null); | ||
| env2.putAll(envMap); | ||
| } catch (NoSuchFieldException | ClassNotFoundException | IllegalAccessException e) { | ||
| Class[] classes = Collections.class.getDeclaredClasses(); | ||
| Map env = System.getenv(); | ||
| for (Class cl : classes) { | ||
| if ("java.util.Collections$UnmodifiableMap".equals(cl.getName())) { | ||
| Field field = cl.getDeclaredField("m"); | ||
| field.setAccessible(true); | ||
| Object obj = field.get(env); | ||
| Map map = (Map) obj; | ||
| map.clear(); | ||
| map.putAll(envMap); | ||
| } | ||
| } | ||
| } | ||
| } | ||
| } |