# If we run 'go mod tidy -e', we should still save enough checksums to run
# 'go list -m all' reproducibly with go 1.16, even though we can't list
# the specific package.

go mod tidy -e
! stderr '\n\tgo mod tidy'
cmp go.mod go.mod.orig

# Make sure that -diff behaves the same as tidy.

# is compatible with module pruning. The graph we load from either of
# the workspace modules should be the same, even if their graphs
# don't overlap.
#
# This is the module graph in the test:
#
#  example.com/a -> example.com/b v1.0.0 -> example.com/q v1.1.0
#  example.com/p -> example.com/q v1.0.0
#
# If we didn't load the whole graph and didn't load the dependencies of b
# when loading p, we would end up loading q v1.0.0, rather than v1.1.0,

		default:
			continue
		}

		// See if this is really an induction variable
		less := true
		init, inc, nxt := parseIndVar(ind)
		if init == nil {
			// We failed to parse the induction variable. Before punting, we want to check
			// whether the control op was written with the induction variable on the RHS
			// instead of the LHS. This happens for the downwards case, like:
			//     for i := len(n)-1; i >= 0; i--

! stderr 'unknown revision'
! stdout .

[!exec:false] stop

# Test that Git clone errors will be shown to the user instead of a generic
# "unknown revision" error. To do this we want to force git ls-remote to return
# an error we don't already have special handling for. See golang/go#42751.
exec git config --global ******@****.***dOf https://github.com/
env GIT_SSH_COMMAND=false

	}

	if inWorkspaceMode() {
		// We don't need to update the mod file so return early.
		requirements = rs
		return rs, nil
	}

	mainModule := MainModules.mustGetSingleMainModule()

	if rs.hasRedundantRoot() {
		// If any module path appears more than once in the roots, we know that the
		// go.mod file needs to be updated even though we have not yet loaded any
		// transitive dependencies.

// although we could fake it with an appropriate build.Context
// and a lot of unwrapping.
// More importantly, that package does not implement the tags["*"]
// special case, in which both tag and !tag are considered to be true
// for essentially all tags (except "ignore").
//
// If we added this API to go/build directly, we wouldn't need this

# When we run 'go mod tidy -e', we should proceed past the first error and follow
# it with a second error describing the version discrepancy.
#
# We should not provide advice on how to push past the version discrepancy,
# because the '-e' flag should already do that, writing out an otherwise-tidied

		}
		f.Write([]byte(text))
		_, err := f.Finish()
		// We should get a no exit code error
		if err == nil || !wantErr.MatchString(err.Error()) {
			t.Errorf("want error matching %s, got %s", wantErr, err)
		}
		// And it should flush all output (even if it looks
		// like we may be getting an exit code)
		if got := out.String(); text != got {

		}
	}
	// If it has a slash, it must be a package path but there is a symbol.
	// It's the last package path we care about.
	slash := strings.LastIndex(arg, "/")
	// There may be periods in the package path before or after the slash
	// and between a symbol and method.
	// Split the string at various periods to see what we find.
	// In general there may be ambiguities but this should almost always
	// work.
	var period int

# We should not save a crasher.
! go test -fuzz=FuzzNonCrash
! exists testdata
! stdout unreachable
! stderr unreachable
stdout 'fuzzing process terminated by unexpected signal; no crash will be recorded: signal: terminated'

# FuzzKill sends itself a signal that cannot be caught by the worker process
# and does not appear to be a crash.
# We should not save a crasher.
! go test -fuzz=FuzzKill