testID := h.Sum()
	if c.id1 == (cache.ActionID{}) {
		c.id1 = testID
	} else {
		c.id2 = testID
	}
	if cache.DebugTest {
		fmt.Fprintf(os.Stderr, "testcache: %s: test ID %x => %x\n", a.Package.ImportPath, id, testID)
	}

	// Load list of referenced environment variables and files
	// from last run of testID, and compute hash of that content.

	// this list.
	registerStdTestSpecially := map[string]bool{
		// testdir can run normally as part of "go test std cmd", but because
		// it's a very large test, we register is specially as several shards to
		// enable better load balancing on sharded builders. Ideally the build
		// system would know how to shard any large test package.
		"cmd/internal/testdir": true,
	}

	// Fast path to avoid the ~1 second of `go list std cmd` when

        then:
        0 * _
    }

    def "can visit structure when collection contains paths"() {
        def visitor = Mock(FileCollectionStructureVisitor)
        def one = testDir.file('one')
        def two = testDir.file('two')

        given:
        collection.from("a", "b")

        when:
        collection.visitStructure(visitor)

        then:

        }

        @Override
        public SuiteSpec testNG(String name, TemplateLibraryVersionProvider libraryVersionProvider) {
            final SuiteSpec spec = new SuiteSpec(null, name, SuiteSpec.TestSuiteFramework.TEST_NG, libraryVersionProvider.getVersion("testng"), builder);
            suites.add(spec);
            return spec;
        }
    }

    public static class SuiteSpec extends AbstractStatement {