mirror of
https://github.com/go-sylixos/elvish.git
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212 lines
7.0 KiB
Go
212 lines
7.0 KiB
Go
package eval_test
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import (
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"testing"
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"github.com/elves/elvish/pkg/eval/errs"
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. "github.com/elves/elvish/pkg/eval/evaltest"
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"github.com/elves/elvish/pkg/eval/vals"
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"github.com/elves/elvish/pkg/eval/vars"
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"github.com/elves/elvish/pkg/testutil"
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)
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func TestCompileEffect(t *testing.T) {
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_, cleanup := testutil.InTestDir()
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defer cleanup()
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Test(t,
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// Chunks
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// ------
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// Empty chunk
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That("").DoesNothing(),
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// Outputs of pipelines in a chunk are concatenated
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That("put x; put y; put z").Puts("x", "y", "z"),
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// A failed pipeline cause the whole chunk to fail
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That("put a; e:false; put b").Puts("a").Throws(AnyError),
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// Pipelines
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// ---------
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// Pure byte pipeline
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That(`echo "Albert\nAllan\nAlbraham\nBerlin" | sed s/l/1/g | grep e`).
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Prints("A1bert\nBer1in\n"),
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// Pure channel pipeline
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That(`put 233 42 19 | each [x]{+ $x 10}`).Puts(243.0, 52.0, 29.0),
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// Pipeline draining.
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That(`range 100 | put x`).Puts("x"),
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// Background pipeline.
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That(
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"notify-bg-job-success = $false",
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"p = (pipe)",
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"{ print foo > $p; pwclose $p }&",
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"slurp < $p",
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"prclose $p").Puts("foo"),
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// TODO: Add a useful hybrid pipeline sample
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// Commands
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// --------
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That("put foo").Puts("foo"),
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// Command errors when the head is not a single value.
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That("{put put} foo").Throws(
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errs.ArityMismatch{
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What: "command", ValidLow: 1, ValidHigh: 1, Actual: 2},
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"{put put}"),
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// Command errors when the head is not callable or string containing slash.
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That("[] foo").Throws(
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errs.BadValue{
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What: "command",
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Valid: "callable or string containing slash",
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Actual: "list"},
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"[]"),
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// Command errors when when argument errors.
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That("put [][1]").Throws(ErrorWithType(errs.OutOfRange{}), "[][1]"),
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// Command errors when an option key is not string.
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That("put &[]=[]").Throws(
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errs.BadValue{What: "option key", Valid: "string", Actual: "list"},
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"put &[]=[]"),
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// Command errors when any optional evaluation errors.
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That("put &x=[][1]").Throws(ErrorWithType(errs.OutOfRange{}), "[][1]"),
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// Assignments
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// -----------
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// Spacey assignment.
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That("a = foo; put $a").Puts("foo"),
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That("a b = foo bar; put $a $b").Puts("foo", "bar"),
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That("a @b = 2 3 foo; put $a $b").Puts("2", vals.MakeList("3", "foo")),
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That("a @b c = 1 2 3 4; put $a $b $c").
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Puts("1", vals.MakeList("2", "3"), "4"),
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That("a @b c = 1 2; put $a $b $c").Puts("1", vals.EmptyList, "2"),
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That("@a = ; put $a").Puts(vals.EmptyList),
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// List element assignment
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That("li=[foo bar]; li[0]=233; put $@li").Puts("233", "bar"),
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// Variable in list assignment must already be defined. Regression test
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// for b.elv.sh/889.
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That("foobarlorem[0] = a").DoesNotCompile(),
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// Map element assignment
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That("di=[&k=v]; di[k]=lorem; di[k2]=ipsum; put $di[k] $di[k2]").
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Puts("lorem", "ipsum"),
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That("d=[&a=[&b=v]]; put $d[a][b]; d[a][b]=u; put $d[a][b]").
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Puts("v", "u"),
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// Multi-assignments.
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That("{a,b}=(put a b); put $a $b").Puts("a", "b"),
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That("@a=(put a b); put $@a").Puts("a", "b"),
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That("{a,@b}=(put a b c); put $@b").Puts("b", "c"),
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//That("di=[&]; di[a b]=(put a b); put $di[a] $di[b]").Puts("a", "b"),
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// Temporary assignment.
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That("a=alice b=bob; {a,@b}=(put amy ben) put $a $@b; put $a $b").
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Puts("amy", "ben", "alice", "bob"),
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// Temporary assignment of list element.
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That("l = [a]; l[0]=x put $l[0]; put $l[0]").Puts("x", "a"),
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// Temporary assignment of map element.
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That("m = [&k=v]; m[k]=v2 put $m[k]; put $m[k]").Puts("v2", "v"),
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// Temporary assignment before special form.
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That("li=[foo bar] for x $li { put $x }").Puts("foo", "bar"),
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// Spacey assignment with temporary assignment
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That("x = 1; x=2 y = (+ 1 $x); put $x $y").Puts("1", 3.0),
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// Concurrently creating a new variable and accessing existing variable.
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// Run with "go test -race".
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That("x = 1", "put $x | y = (all)").DoesNothing(),
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That("nop (x = 1) | nop").DoesNothing(),
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// Assignment errors when the RHS errors.
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That("x = [][1]").Throws(ErrorWithType(errs.OutOfRange{}), "[][1]"),
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// Assignment errors itself.
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That("true = 1").Throws(vars.ErrSetReadOnlyVar, "true = 1"),
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That("@true = 1").Throws(vars.ErrSetReadOnlyVar, "@true = 1"),
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// Arity mismatch.
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That("x = 1 2").Throws(
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errs.ArityMismatch{
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What: "assignment right-hand-side",
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ValidLow: 1, ValidHigh: 1, Actual: 2},
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"x = 1 2"),
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That("x y = 1").Throws(
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errs.ArityMismatch{
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What: "assignment right-hand-side",
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ValidLow: 2, ValidHigh: 2, Actual: 1},
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"x y = 1"),
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That("x y @z = 1").Throws(
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errs.ArityMismatch{
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What: "assignment right-hand-side",
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ValidLow: 2, ValidHigh: -1, Actual: 1},
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"x y @z = 1"),
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// Redirections
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// ------------
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// Output and input redirection.
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That("echo 233 > out1", " slurp < out1").Puts("233\n"),
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// Append.
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That("echo 1 > out; echo 2 >> out; slurp < out").Puts("1\n2\n"),
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// Redirections from special form.
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That(`for x [lorem ipsum] { echo $x } > out2`, `slurp < out2`).
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Puts("lorem\nipsum\n"),
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// Using numeric FDs as source and destination.
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That(`{ echo foobar >&2 } 2> out3`, `slurp < out3`).
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Puts("foobar\n"),
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// Using named FDs as source and destination.
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That(`{ echo foobar >&stderr } stderr> out4`, `slurp < out4`).
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Puts("foobar\n"),
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// Using a new FD as source throws an exception.
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That(`echo foo >&4`).Throws(AnyError),
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// Using a new FD as destination is OK, and makes it available.
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That(`{ echo foo >&4 } 4>out5`, `slurp < out5`).Puts("foo\n"),
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// Redirections from File object.
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That(`echo haha > out3`, `f = (fopen out3)`, `slurp <$f`, ` fclose $f`).
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Puts("haha\n"),
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// Redirections from Pipe object.
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That(`p = (pipe); echo haha > $p; pwclose $p; slurp < $p; prclose $p`).
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Puts("haha\n"),
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// We can't read values from a file and shouldn't hang when iterating
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// over input from a file.
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// Regression test for https://github.com/elves/elvish/issues/1010
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That("echo abc > bytes", "each $echo~ < bytes").Prints("abc\n"),
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That("echo def > bytes", "only-values < bytes | count").Puts("0"),
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// Invalid redirection destination.
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That("echo []> test").Throws(
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errs.BadValue{
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What: "redirection destination",
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Valid: "fd name or number", Actual: "[]"},
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"[]"),
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// Invalid fd redirection source.
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That("echo >&test").Throws(
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errs.BadValue{
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What: "redirection source",
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Valid: "fd name or number or '-'", Actual: "test"},
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"test"),
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// Invalid redirection source.
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That("echo > []").Throws(
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errs.BadValue{
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What: "redirection source",
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Valid: "string, file or pipe", Actual: "list"},
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"[]"),
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)
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}
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func TestStacktrace(t *testing.T) {
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oops := ErrorWithMessage("oops")
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Test(t,
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// Stack traces.
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That("fail oops").Throws(oops, "fail oops"),
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That("fn f { fail oops }", "f").Throws(oops, "fail oops ", "f"),
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That("fn f { fail oops }", "fn g { f }", "g").Throws(
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oops, "fail oops ", "f ", "g"),
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// Error thrown before execution.
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That("fn f { }", "f a").Throws(ErrorWithType(errs.ArityMismatch{}), "f a"),
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// Error from builtin.
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That("count 1 2 3").Throws(
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ErrorWithType(errs.ArityMismatch{}), "count 1 2 3"),
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)
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}
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