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d4b4edbbbe
I was surprised to see so many legacy lambda syntax examples in the documentation. This replaces all of them with the new syntax -- excluding the handful of cases meant to explicitly verify the legacy form is still valid. This also adds a link to the issue in the release notes which documents the change in syntax. Related #664
59 lines
1.7 KiB
Go
59 lines
1.7 KiB
Go
package eval_test
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import (
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"testing"
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"src.elv.sh/pkg/eval"
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"src.elv.sh/pkg/eval/errs"
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"src.elv.sh/pkg/tt"
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. "src.elv.sh/pkg/eval/evaltest"
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)
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func TestClosureAsValue(t *testing.T) {
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Test(t,
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// Basic operations as a value.
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That("kind-of { }").Puts("fn"),
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That("eq { } { }").Puts(false),
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That("x = { }; put [&$x= foo][$x]").Puts("foo"),
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// Argument arity mismatch.
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That("f = {|x| }", "$f a b").Throws(
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errs.ArityMismatch{What: "arguments",
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ValidLow: 1, ValidHigh: 1, Actual: 2},
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"$f a b"),
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That("f = {|x y| }", "$f a").Throws(
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errs.ArityMismatch{What: "arguments", ValidLow: 2, ValidHigh: 2, Actual: 1},
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"$f a"),
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That("f = {|x y @rest| }", "$f a").Throws(
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errs.ArityMismatch{What: "arguments", ValidLow: 2, ValidHigh: -1, Actual: 1},
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"$f a"),
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// Unsupported option.
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That("f = {|&valid1=1 &valid2=2| }; $f &bad1=1 &bad2=2").Throws(
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eval.UnsupportedOptionsError{[]string{"bad1", "bad2"}},
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"$f &bad1=1 &bad2=2"),
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That("all {|a b| }[arg-names]").Puts("a", "b"),
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That("put {|@r| }[rest-arg]").Puts("0"),
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That("all {|&opt=def| }[opt-names]").Puts("opt"),
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That("all {|&opt=def| }[opt-defaults]").Puts("def"),
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That("put { body }[body]").Puts("body "),
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That("put {|x @y| body }[def]").Puts("{|x @y| body }"),
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That("put { body }[src][code]").
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Puts("put { body }[src][code]"),
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// Regression test for https://b.elv.sh/1126
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That("fn f { body }; put $f~[body]").Puts("body "),
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)
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}
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func TestUnsupportedOptionsError(t *testing.T) {
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tt.Test(t, tt.Fn("Error", error.Error), tt.Table{
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tt.Args(eval.UnsupportedOptionsError{[]string{"sole-opt"}}).Rets(
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"unsupported option: sole-opt"),
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tt.Args(eval.UnsupportedOptionsError{[]string{"opt-foo", "opt-bar"}}).Rets(
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"unsupported options: opt-foo, opt-bar"),
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})
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}
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