// Copyright (c) 2024 Celestino Amoroso (celestino.amoroso@gmail.com). // All rights reserved. // funcs_test.go package expr import ( "errors" "testing" ) func TestFuncs(t *testing.T) { inputs := []inputType{ /* 1 */ {`isNil(nil)`, true, nil}, /* 2 */ {`v=nil; isNil(v)`, true, nil}, /* 3 */ {`v=5; isNil(v)`, false, nil}, /* 4 */ {`int(true)`, int64(1), nil}, /* 5 */ {`int(false)`, int64(0), nil}, /* 6 */ {`int(3.1)`, int64(3), nil}, /* 7 */ {`int(3.9)`, int64(3), nil}, /* 8 */ {`int("432")`, int64(432), nil}, /* 9 */ {`int("1.5")`, nil, errors.New(`strconv.Atoi: parsing "1.5": invalid syntax`)}, /* 10 */ {`int("432", 4)`, nil, errors.New(`int() requires exactly one param`)}, /* 11 */ {`int(nil)`, nil, errors.New(`int() can't convert <nil> to int`)}, /* 12 */ {`two=func(){2}; two()`, int64(2), nil}, /* 13 */ {`double=func(x) {2*x}; (double(3))`, int64(6), nil}, /* 14 */ {`double=func(x){2*x}; double(3)`, int64(6), nil}, /* 15 */ {`double=func(x){2*x}; a=5; double(3+a) + 1`, int64(17), nil}, /* 16 */ {`double=func(x){2*x}; a=5; two=func() {2}; (double(3+a) + 1) * two()`, int64(34), nil}, /* 17 */ {`builtin "import"; import("./test-funcs.expr"); (double(3+a) + 1) * two()`, int64(34), nil}, /* 18 */ {`builtin "import"; import("test-funcs.expr"); (double(3+a) + 1) * two()`, int64(34), nil}, /* 19 */ {`@x="hello"; @x`, nil, errors.New(`[1:3] variable references are not allowed in top level expressions: "@x"`)}, /* 20 */ {`f=func(){@x="hello"}; f(); x`, "hello", nil}, /* 21 */ {`f=func(@y){@y=@y+1}; f(2); y`, int64(3), nil}, /* 22 */ {`f=func(@y){g=func(){@x=5}; @y=@y+g()}; f(2); y+x`, nil, errors.New(`undefined variable or function "x"`)}, /* 23 */ {`f=func(@y){g=func(){@x=5}; @z=g(); @y=@y+@z}; f(2); y+z`, int64(12), nil}, /* 24 */ {`f=func(@y){g=func(){@x=5}; g(); @z=x; @y=@y+@z}; f(2); y+z`, int64(12), nil}, /* 25 */ {`f=func(@y){g=func(){@x=5}; g(); @z=x; @x=@y+@z}; f(2); y+x`, int64(9), nil}, /* 26 */ {`builtin "import"; importAll("./test-funcs.expr"); six()`, int64(6), nil}, /* 27 */ {`builtin "import"; import("./sample-export-all.expr"); six()`, int64(6), nil}, } t.Setenv("EXPR_PATH", ".") // parserTest(t, "Func", inputs[25:26]) parserTest(t, "Func", inputs) }