Issue #76: add some tests to ensure that GStrings work as expected wh…

…en declaring environment variables.

src/test/groovy/com/github/gradle/node/task/NodeTask_integTest.groovy

@@ -134,7 +134,7 @@ class NodeTask_integTest
         then:
         result6.task(":nodeSetup").outcome == TaskOutcome.UP_TO_DATE
         result6.task(":env").outcome == TaskOutcome.SUCCESS
-        result6.output.contains("Detected custom environment: custom environment value")
+        result6.output.contains("Detected custom environment: custom value")
 
         when:
         environmentVariables.set("NEW_ENV_VARIABLE", "Let's make the whole environment change")

src/test/resources/fixtures/node-env/build.gradle

@@ -31,7 +31,8 @@ if (changeOptions) {
 }
 
 if (changeEnv) {
-    env.environment = ["CUSTOM": "custom environment value"]
+    def qualifier = "custom"
+    env.environment = [CUSTOM: "${qualifier} value"]
 }
 
 if (changeWorkingDir) {

src/test/resources/fixtures/npm-env/build.gradle

@@ -33,7 +33,8 @@ task version(type: NpmTask) {
 }
 
 if (isPropertyEnabled("customEnv")) {
-    env.environment = [CUSTOM: "custom value"]
+    def qualifier = "custom"
+    env.environment = [CUSTOM: "${qualifier} value"]
 }
 
 if (isPropertyEnabled("ignoreExitValue")) {

src/test/resources/fixtures/npx-env/build.gradle

@@ -30,7 +30,8 @@ task version(type: NpxTask) {
 }
 
 if (isPropertyEnabled("customEnv")) {
-    env.environment = [CUSTOM: "custom value"]
+    def qualifier = "custom"
+    env.environment = [CUSTOM: "${qualifier} value"]
 }
 
 if (isPropertyEnabled("ignoreExitValue")) {

src/test/resources/fixtures/yarn-env/build.gradle

@@ -33,7 +33,8 @@ task version(type: YarnTask) {
 }
 
 if (isPropertyEnabled("customEnv")) {
-    env.environment = [CUSTOM: "custom value"]
+    def qualifier = "custom"
+    env.environment = [CUSTOM: "${qualifier} value"]
 }
 
 if (isPropertyEnabled("ignoreExitValue")) {