}

    def "reads classpath from System.in and sets up system classpath on first permission check"() {
        def entry1 = new File("a.jar")
        def entry2 = new File("b.jar")
        TestClassLoader cl = Mock()

        given:
        System.in = createStdInContent(entry1, entry2)

        when:
        def securityManager = new BootstrapSecurityManager(cl)

        then:
        0 * cl._

    static <T> ChildMap<T> childMap(CaseSensitivity caseSensitivity, ChildMap.Entry<T> entry1, ChildMap.Entry<T> entry2) {
        int compared = PathUtil.getPathComparator(caseSensitivity).compare(entry1.getPath(), entry2.getPath());
        List<ChildMap.Entry<T>> sortedEntries = compared < 0
            ? ImmutableList.of(entry1, entry2)
            : ImmutableList.of(entry2, entry1);
        return childMapFromSorted(sortedEntries);
    }

        name == "first"
        tracker.root
        tracker.segments.empty
        tracker.toRelativePath() == ""
    }

    def "can enter and leave second level"() {
        given:
        tracker.enter("root")
        tracker.enter("first")
        when:
        tracker.enter("second")
        then:
        !tracker.root
        tracker.segments as List == ["first", "second"]

import java.util.List;
import java.util.Set;
import java.util.stream.Collectors;

/**
 * This class keeps track of all objects being evaluated at the moment.
 * It helps to provide nicer error messages when the evaluation enters an endless cycle (A obtains a value of B which obtains a value of A).
 * <p>
 * Concurrent evaluation of same objects by multiple threads is still allowed.
 * <p>

env HOME=$WORK${/}home${/}gopher
exec git config --global --show-origin user.name
stdout 'Go Gopher'

! go mod download github.com/golang/nonexist@latest
stderr 'Confirm the import path was entered correctly.'
stderr 'If this is a private repository, see https://golang.org/doc/faq#git_https for additional information.'
! stdout .

# Fetching a nonexistent commit should return an "unknown revision"
# error message.

			switch state {
			case entered:
				if new == trace.GoWaiting {
					state = blocked
				} else {
					state = entered
				}
			case blocked:
				if new == trace.GoRunnable {
					state = runnable
				} else {
					state = entered
				}
			case runnable:
				if new == trace.GoRunning {
					state = running
				} else {
					state = entered
				}
			case running:

  } else {
    // Some control flow ops in TensorFlow Graph have their respective "Ref" ops
    // as well. For example there is Enter and RefEnter op. RefEnter forwards
    // the input ref buffer to output. However both Enter and RefEnter are
    // mapped to tf_executor::EnterOp during import. Check if it is a Ref op to
    // correctly map to the TensorFlow Graph op.
    if (IsRefTypeControlOp(inst)) op_name = "Ref";

    %Enter, %ctl_0 = Enter(%Const) [%arg.ctl] name("while/Enter") {T = i32, frame_name = "while/while_context", is_constant = false, parallel_iterations = 10 : i64} : (tensor<i32>) -> (tensor<*xi32>)
    %NextIteration, %ctl_1 = NextIteration(%Const) [%arg.ctl] name("while/NextIteration") {T = i32} : (tensor<i32>) -> (tensor<*xi32>)

    %Enter, %ctl_0 = Enter(%Const) name("while/Enter") {T = i32, frame_name = "while/while_context", is_constant = false, parallel_iterations = 10 : i64} : (tensor<i32>) -> (tensor<*xi32>)
    %NextIteration, %ctl_1 = NextIteration(%Add) name("while/NextIteration") {T = i32} : (tensor<*xi32>) -> (tensor<*xi32>)

        tracker.leaveDynamicCall(entryPoint2)
        tracker.leaveDynamicCall(entryPoint1)

        then:
        log == ["enter", entryPoint1, "enter", entryPoint2, "leave", entryPoint2, "leave", entryPoint1]
    }

    def "throws exception on mismatched calls"() {
        when:
        tracker.enterDynamicCall(new Object())
        tracker.leaveDynamicCall(new Object())

        then: