elvish/pkg/eval/eval_test.go

164 lines
4.0 KiB
Go
Raw Normal View History

package eval_test
import (
"strconv"
"sync"
"syscall"
2014-01-29 21:17:04 +08:00
"testing"
2018-01-01 05:01:21 +08:00
. "src.elv.sh/pkg/eval"
"src.elv.sh/pkg/prog"
. "src.elv.sh/pkg/eval/evaltest"
"src.elv.sh/pkg/eval/vals"
"src.elv.sh/pkg/eval/vars"
"src.elv.sh/pkg/parse"
"src.elv.sh/pkg/testutil"
)
func TestPid(t *testing.T) {
pid := strconv.Itoa(syscall.Getpid())
Test(t, That("put $pid").Puts(pid))
}
func TestNumBgJobs(t *testing.T) {
Test(t,
That("put $num-bg-jobs").Puts("0"),
// TODO(xiaq): Test cases where $num-bg-jobs > 0. This cannot be done
// with { put $num-bg-jobs }& because the output channel may have
// already been closed when the closure is run.
)
}
2021-01-05 05:04:17 +08:00
func TestArgs(t *testing.T) {
Test(t,
That("put $args").Puts(vals.EmptyList))
TestWithEvalerSetup(t,
func(ev *Evaler) { ev.Args = vals.MakeList("foo", "bar") },
2021-01-05 05:04:17 +08:00
That("put $args").Puts(vals.MakeList("foo", "bar")))
}
func TestEvalTimeDeprecate(t *testing.T) {
testutil.Set(t, &prog.DeprecationLevel, 42)
testutil.InTempDir(t)
TestWithEvalerSetup(t, func(ev *Evaler) {
ev.ExtendGlobal(BuildNs().AddGoFn("dep", func(fm *Frame) {
fm.Deprecate("deprecated", nil, 42)
}))
},
That("dep").PrintsStderrWith("deprecated"),
// Deprecation message from the same location is only shown once.
That("fn f { dep }", "f 2> tmp.txt; f").DoesNothing(),
)
}
func TestMultipleEval(t *testing.T) {
Test(t,
That("var x = hello").Then("put $x").Puts("hello"),
// Shadowing with fn. Regression test for #1213.
That("fn f { put old }").Then("fn f { put new }").Then("f").
Puts("new"),
// Variable deletion. Regression test for #1213.
That("var x = foo").Then("del x").Then("put $x").DoesNotCompile("variable $x not found"),
)
}
func TestEval_AlternativeGlobal(t *testing.T) {
ev := NewEvaler()
g := BuildNs().AddVar("a", vars.NewReadOnly("")).Ns()
err := ev.Eval(parse.Source{Name: "[test]", Code: "nop $a"}, EvalCfg{Global: g})
if err != nil {
t.Errorf("got error %v, want nil", err)
}
// Regression test for #1223
2021-10-24 01:18:31 +08:00
if ev.Global().HasKeyString("a") {
t.Errorf("$a from alternative global leaked into Evaler global")
}
}
func TestEval_Concurrent(t *testing.T) {
ev := NewEvaler()
var wg sync.WaitGroup
wg.Add(2)
go func() {
ev.Eval(parse.Source{Name: "[test]", Code: "var a"}, EvalCfg{})
wg.Done()
}()
go func() {
ev.Eval(parse.Source{Name: "[test]", Code: "var b"}, EvalCfg{})
wg.Done()
}()
wg.Wait()
g := ev.Global()
2021-10-24 01:18:31 +08:00
if !g.HasKeyString("a") {
t.Errorf("variable $a not created")
}
2021-10-24 01:18:31 +08:00
if !g.HasKeyString("b") {
t.Errorf("variable $b not created")
}
}
type fooOpts struct{ Opt string }
func (*fooOpts) SetDefaultOptions() {}
func TestCall(t *testing.T) {
ev := NewEvaler()
var gotOpt, gotArg string
fn := NewGoFn("foo", func(fm *Frame, opts fooOpts, arg string) {
gotOpt = opts.Opt
gotArg = arg
})
passedArg := "arg value"
passedOpt := "opt value"
ev.Call(fn,
2021-01-06 00:05:34 +08:00
CallCfg{
Args: []any{passedArg},
Opts: map[string]any{"opt": passedOpt},
From: "[TestCall]"},
2021-01-06 00:05:34 +08:00
EvalCfg{})
if gotArg != passedArg {
t.Errorf("got arg %q, want %q", gotArg, passedArg)
}
if gotOpt != passedOpt {
t.Errorf("got opt %q, want %q", gotOpt, passedOpt)
}
}
var checkTests = []struct {
name string
code string
wantParseErr bool
wantCompileErr bool
}{
{name: "no error", code: "put $nil"},
{name: "parse error only", code: "put [",
wantParseErr: true},
{name: "compile error only", code: "put $x",
wantCompileErr: true},
{name: "both parse and compile error", code: "put [$x",
wantParseErr: true, wantCompileErr: true},
}
func TestCheck(t *testing.T) {
ev := NewEvaler()
for _, test := range checkTests {
t.Run(test.name, func(t *testing.T) {
parseErr, _, compileErr := ev.Check(parse.Source{Name: "[test]", Code: test.code}, nil)
if (parseErr != nil) != test.wantParseErr {
t.Errorf("got parse error %v, when wantParseErr = %v",
parseErr, test.wantParseErr)
}
if (compileErr != nil) != test.wantCompileErr {
t.Errorf("got compile error %v, when wantCompileErr = %v",
compileErr, test.wantCompileErr)
}
})
}
}