Update testplan for setting environment variables. (#394)

* Update testplan for setting environment variables.

* Update TestPlan.md

Author: Eskibear

TestPlan.md

@@ -419,3 +419,13 @@ Exception in thread "main" java.lang.IllegalStateException
 7. Verify that the program starts, and there is no information in "watch" and "callstack" view.
 8. Click the "pause" button in the toolbar, it should NOT pause the program.
 9. Click the "stop" button in the toolbar, it should stop the program.
+
+
+## Environment Variables
+1. Open `26.environmentVariables` in vscode.
+2. Press <kbd>F5</kbd> to start.
+3. Verify the output in Debug Console should be as following:
+    ```
+    CustomEnv: This env is for test plan.
+    SystemPath: <value of PATH >
+    ```

testprojects/26.environmentVariables/.classpath

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<classpath>
+	<classpathentry kind="src" path="src/main/java"/>
+	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-1.8/"/>	
+	<classpathentry kind="output" path="bin"/>
+</classpath>

testprojects/26.environmentVariables/.project

@@ -0,0 +1,17 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<projectDescription>
+	<name>26.environmentVariables</name>
+	<comment></comment>
+	<projects>
+	</projects>
+	<buildSpec>
+		<buildCommand>
+			<name>org.eclipse.jdt.core.javabuilder</name>
+			<arguments>
+			</arguments>
+		</buildCommand>
+	</buildSpec>
+	<natures>
+		<nature>org.eclipse.jdt.core.javanature</nature>		
+	</natures>
+</projectDescription>

testprojects/26.environmentVariables/.vscode/launch.json

@@ -0,0 +1,23 @@
+{
+    // Use IntelliSense to learn about possible attributes.
+    // Hover to view descriptions of existing attributes.
+    // For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387
+    "version": "0.2.0",
+    "configurations": [
+        
+        {
+            "type": "java",
+            "name": "Debug (Launch)-EnvrionmentVariable<26.environmentVariables>",
+            "request": "launch",
+            "cwd": "${workspaceFolder}",
+            "console": "internalConsole",
+            "stopOnEntry": false,
+            "mainClass": "EnvrionmentVariable",
+            "args": "",
+            "projectName": "26.environmentVariables",
+            "env": {
+                "CUSTOM_ENV_FOR_TEST_PLAN": "This env is for test plan."
+            }
+        }
+    ]
+}

testprojects/26.environmentVariables/src/main/java/EnvrionmentVariable.java

@@ -0,0 +1,8 @@
+public class EnvrionmentVariable {
+    public static void main(String[] args) {
+        String customEnv = System.getenv("CUSTOM_ENV_FOR_TEST_PLAN");
+        String systemPath = System.getenv("PATH");
+        System.out.println(String.format("CustomEnv: %s", customEnv));
+        System.out.println(String.format("SystemPath: %s", systemPath));
+    }
+}