2024-04-20 07:29:42 +02:00
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// Copyright (c) 2024 Celestino Amoroso (celestino.amoroso@gmail.com).
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// All rights reserved.
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2024-05-28 07:26:05 +02:00
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// t_funcs_test.go
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2024-04-20 07:29:42 +02:00
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package expr
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import (
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"errors"
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"testing"
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)
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func TestFuncs(t *testing.T) {
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2024-06-01 16:31:50 +02:00
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section := "Funcs"
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2024-04-20 07:29:42 +02:00
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inputs := []inputType{
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2024-06-01 16:31:50 +02:00
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/* 1 */ {`two=func(){2}; two()`, int64(2), nil},
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/* 2 */ {`double=func(x) {2*x}; (double(3))`, int64(6), nil},
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/* 3 */ {`double=func(x){2*x}; double(3)`, int64(6), nil},
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/* 4 */ {`double=func(x){2*x}; a=5; double(3+a) + 1`, int64(17), nil},
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/* 5 */ {`double=func(x){2*x}; a=5; two=func() {2}; (double(3+a) + 1) * two()`, int64(34), nil},
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/* 6 */ {`@x="hello"; @x`, nil, errors.New(`[1:3] variable references are not allowed in top level expressions: "@x"`)},
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/* 7 */ {`f=func(){@x="hello"}; f(); x`, "hello", nil},
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/* 8 */ {`f=func(@y){@y=@y+1}; f(2); y`, int64(3), nil},
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/* 9 */ {`f=func(@y){g=func(){@x=5}; @y=@y+g()}; f(2); y+x`, nil, errors.New(`undefined variable or function "x"`)},
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/* 10 */ {`f=func(@y){g=func(){@x=5}; @z=g(); @y=@y+@z}; f(2); y+z`, int64(12), nil},
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/* 11 */ {`f=func(@y){g=func(){@x=5}; g(); @z=x; @y=@y+@z}; f(2); y+z`, int64(12), nil},
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/* 12 */ {`f=func(@y){g=func(){@x=5}; g(); @z=x; @x=@y+@z}; f(2); y+x`, int64(9), nil},
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/* 13 */ {`two=func(){2}; four=func(f){f()+f()}; four(two)`, int64(4), nil},
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/* 14 */ {`two=func(){2}; two(123)`, nil, errors.New(`two(): too much params -- expected 0, got 1`)},
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2024-06-01 19:56:40 +02:00
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/* 15 */ {`f=func(x,n=2){x+n}; f(3)`, int64(5), nil},
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/* 16 */ {`f=func(x,n=2,y){x+n}`, nil, errors.New(`[1:16] can't mix default and non-default parameters`)},
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/* 17 */ {`f=func(x,n){1}; f(3,4,)`, nil, errors.New(`[1:24] expected "function-param-value", got ")"`)},
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2024-06-02 12:33:32 +02:00
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// /* 18 */ {`f=func(a){a*2}`, nil, errors.New(`[1:24] expected "function-param-value", got ")"`)},
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2024-04-20 07:29:42 +02:00
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}
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2024-06-01 19:56:40 +02:00
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// t.Setenv("EXPR_PATH", ".")
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2024-05-06 10:38:45 +02:00
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2024-06-01 19:56:40 +02:00
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// parserTestSpec(t, section, inputs, 17)
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2024-06-01 16:31:50 +02:00
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parserTest(t, section, inputs)
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}
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func dummy(ctx ExprContext, name string, args []any) (result any, err error) {
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return
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}
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func TestFunctionToStringSimple(t *testing.T) {
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2024-06-06 05:31:35 +02:00
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source := NewGolangFunctor(dummy)
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want := "func() {<body>}"
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got := source.ToString(0)
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if got != want {
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t.Errorf(`(func() -> result = %v [%T], want = %v [%T]`, got, got, want, want)
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}
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}
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func TestFunctionGetFunc(t *testing.T) {
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source := NewGolangFunctor(dummy)
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2024-06-01 16:31:50 +02:00
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want := ExprFunc(nil)
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got := source.GetFunc()
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if got != want {
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t.Errorf(`(func() -> result = %v [%T], want = %v [%T]`, got, got, want, want)
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}
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2024-04-20 07:29:42 +02:00
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}
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