}
            }
        """

        when:
        executer.withEnvironmentVars(ORG_GRADLE_PROJECT_myProp: 'fromEnv')

        then:
        succeeds 'printProperty'

        and:
        outputContains("myProp=fromEnv")

        when:
        executer.withEnvironmentVars(ORG_GRADLE_PROJECT_myProp: 'fromEnv2')

        then:
        succeeds 'printProperty'

        String path = String.format('%s%s%s', Jvm.current().javaExecutable.parentFile, File.pathSeparator, System.getenv('PATH'))

        then:
        executer.withEnvironmentVars('PATH': path).withJavaHome('').withArguments(expectedJavaHome).withTasks('checkJavaHome').run()
    }

    @Requires(IntegTestPreconditions.NotEmbeddedExecutor)

        """

        when:
        executer.withEnvironmentVars([
            (ENV_PROJECT_PROPERTIES_PREFIX + 'gradleProp'): 1
        ])
        configurationCacheRun "help"

        then:
        outputContains '1!'
        configurationCache.assertStateStored()

        when:
        executer.withEnvironmentVars([
            (ENV_PROJECT_PROPERTIES_PREFIX + 'gradleProp'): 1
        ])

                    }
                }
            }

            apply plugin: ShowPlugin
        """

        when:
        result = executer
            .withEnvironmentVars([JDK1: new File("/unknown/env").absolutePath, JDK2: firstJavaHome])
            .withArgument("-Porg.gradle.java.installations.paths=${new File("/unknown/path").absolutePath}," + secondJavaHome)

                }
            }
        """
        when:
        withEnvironmentVars(GREETING: "hi")
        configurationCacheRun("greet")

        then:
        output.count("Hi!") == 1
        configurationCache.assertStateStored()

        when:
        withEnvironmentVars(GREETING: "hi")
        configurationCacheRun("greet")

        then:
        output.count("Hi!") == 1

                return "using environment variable"
            }

            @Override
            void setup(AbstractConfigurationCacheIntegrationTest test) {
                test.executer.withEnvironmentVars(variables)
            }
        }
    }

    static void checkEnvironmentVariableUnset(String key) {

            withArgument("-D${PLUGIN_PORTAL_OVERRIDE_URL_PROPERTY}=${gradlePluginRepositoryMirrorUrl()}")
            withArgument("-Porg.gradle.java.installations.paths=${Jvm.current().javaHome.absolutePath}")
            withEnvironmentVars([BUILD_BRANCH: System.getProperty("gradleBuildBranch"), BUILD_COMMIT_ID: System.getProperty("gradleBuildCommitId")])
            withWarningMode(WarningMode.None)
            noDeprecationChecks()
        }.run()

        file('build.gradle') << "println providers.environmentVariable('foo').orNull"

        when:
        def out = executer.withEnvironmentVars(foo: "gradle rocks!").run().output

        then:
        out.contains("gradle rocks!")

        when:
        out = executer.withEnvironmentVars(foo: "and will be even better").run().output

        then:
        out.contains("and will be even better")
    }

        // if call `using m2`, then we disable the automatic isolation of m2
        isolateMavenLocal = false
        if (globalMavenDirectory?.exists()) {
            gradleExecuter.withEnvironmentVars(M2_HOME: globalMavenDirectory.absolutePath)
        }
    }

    void isolateMavenLocalRepo(GradleExecuter gradleExecuter) {
        gradleExecuter.beforeExecute {
            if (isolateMavenLocal) {

            }
        """

        when:
        // This prevents the executer fixture from adding "default" values to the build jvm options
        executer.useOnlyRequestedJvmOpts()
        executer.withEnvironmentVars(JAVA_TOOL_OPTIONS: javaToolOptions)
        run "verify"

        then:
        String gradleVersion = (output =~ /GRADLE_VERSION: (.*)/)[0][1]
        daemons(gradleVersion).daemons.size() == 1

        where: