mirror of
https://github.com/go-sylixos/elvish.git
synced 2024-12-13 18:07:51 +08:00
164 lines
3.9 KiB
Go
164 lines
3.9 KiB
Go
package eval_test
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import (
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"strconv"
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"sync"
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"syscall"
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"testing"
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. "src.elv.sh/pkg/eval"
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"src.elv.sh/pkg/prog/progtest"
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. "src.elv.sh/pkg/eval/evaltest"
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"src.elv.sh/pkg/eval/vals"
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"src.elv.sh/pkg/eval/vars"
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"src.elv.sh/pkg/parse"
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"src.elv.sh/pkg/testutil"
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)
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func TestPid(t *testing.T) {
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pid := strconv.Itoa(syscall.Getpid())
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Test(t, That("put $pid").Puts(pid))
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}
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func TestNumBgJobs(t *testing.T) {
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Test(t,
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That("put $num-bg-jobs").Puts("0"),
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// TODO(xiaq): Test cases where $num-bg-jobs > 0. This cannot be done
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// with { put $num-bg-jobs }& because the output channel may have
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// already been closed when the closure is run.
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)
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}
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func TestArgs(t *testing.T) {
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Test(t,
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That("put $args").Puts(vals.EmptyList))
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TestWithSetup(t,
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func(ev *Evaler) { ev.SetArgs([]string{"foo", "bar"}) },
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That("put $args").Puts(vals.MakeList("foo", "bar")))
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}
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func TestEvalTimeDeprecate(t *testing.T) {
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progtest.SetDeprecationLevel(t, 42)
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testutil.InTempDir(t)
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TestWithSetup(t, func(ev *Evaler) {
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ev.AddGlobal(NsBuilder{}.AddGoFn("", "dep", func(fm *Frame) {
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fm.Deprecate("deprecated", nil, 42)
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}).Ns())
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},
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That("dep").PrintsStderrWith("deprecated"),
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// Deprecation message is only shown once.
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That("dep 2> tmp.txt; dep").DoesNothing(),
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)
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}
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func TestMultipleEval(t *testing.T) {
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Test(t,
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That("x = hello").Then("put $x").Puts("hello"),
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// Shadowing with fn. Regression test for #1213.
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That("fn f { put old }").Then("fn f { put new }").Then("f").
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Puts("new"),
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// Variable deletion. Regression test for #1213.
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That("x = foo").Then("del x").Then("put $x").DoesNotCompile(),
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)
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}
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func TestEval_AlternativeGlobal(t *testing.T) {
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ev := NewEvaler()
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g := NsBuilder{"a": vars.NewReadOnly("")}.Ns()
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err := ev.Eval(parse.Source{Code: "nop $a"}, EvalCfg{Global: g})
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if err != nil {
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t.Errorf("got error %v, want nil", err)
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}
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// Regression test for #1223
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if ev.Global().HasName("a") {
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t.Errorf("$a from alternative global leaked into Evaler global")
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}
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}
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func TestEval_Concurrent(t *testing.T) {
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ev := NewEvaler()
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var wg sync.WaitGroup
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wg.Add(2)
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go func() {
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ev.Eval(parse.Source{Code: "var a"}, EvalCfg{})
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wg.Done()
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}()
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go func() {
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ev.Eval(parse.Source{Code: "var b"}, EvalCfg{})
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wg.Done()
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}()
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wg.Wait()
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g := ev.Global()
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if !g.HasName("a") {
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t.Errorf("variable $a not created")
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}
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if !g.HasName("b") {
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t.Errorf("variable $b not created")
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}
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}
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type fooOpts struct{ Opt string }
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func (*fooOpts) SetDefaultOptions() {}
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func TestCall(t *testing.T) {
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ev := NewEvaler()
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var gotOpt, gotArg string
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fn := NewGoFn("foo", func(fm *Frame, opts fooOpts, arg string) {
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gotOpt = opts.Opt
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gotArg = arg
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})
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passedArg := "arg value"
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passedOpt := "opt value"
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ev.Call(fn,
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CallCfg{
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Args: []interface{}{passedArg},
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Opts: map[string]interface{}{"opt": passedOpt},
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From: "[TestCall]"},
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EvalCfg{})
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if gotArg != passedArg {
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t.Errorf("got arg %q, want %q", gotArg, passedArg)
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}
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if gotOpt != passedOpt {
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t.Errorf("got opt %q, want %q", gotOpt, passedOpt)
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}
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}
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var checkTests = []struct {
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name string
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code string
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wantParseErr bool
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wantCompileErr bool
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}{
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{name: "no error", code: "put $nil"},
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{name: "parse error only", code: "put [",
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wantParseErr: true},
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{name: "compile error only", code: "put $x",
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wantCompileErr: true},
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{name: "both parse and compile error", code: "put [$x",
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wantParseErr: true, wantCompileErr: true},
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}
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func TestCheck(t *testing.T) {
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ev := NewEvaler()
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for _, test := range checkTests {
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t.Run(test.name, func(t *testing.T) {
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parseErr, compileErr := ev.Check(parse.Source{Code: test.code}, nil)
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if (parseErr != nil) != test.wantParseErr {
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t.Errorf("got parse error %v, when wantParseErr = %v",
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parseErr, test.wantParseErr)
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}
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if (compileErr != nil) != test.wantCompileErr {
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t.Errorf("got compile error %v, when wantCompileErr = %v",
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compileErr, test.wantCompileErr)
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}
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})
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}
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}
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