177 lines
3.5 KiB
Go
177 lines
3.5 KiB
Go
package config
|
|
|
|
import (
|
|
"testing"
|
|
|
|
hcl2 "github.com/hashicorp/hcl/v2"
|
|
hcl2syntax "github.com/hashicorp/hcl/v2/hclsyntax"
|
|
"github.com/zclconf/go-cty/cty"
|
|
)
|
|
|
|
func TestHCL2InterpolationFuncs(t *testing.T) {
|
|
// This is not a comprehensive test of all the functions (they are tested
|
|
// in interpolation_funcs_test.go already) but rather just calling a
|
|
// representative set via the HCL2 API to verify that the HCL2-to-HIL
|
|
// function shim is working as expected.
|
|
tests := []struct {
|
|
Expr string
|
|
Want cty.Value
|
|
Err bool
|
|
}{
|
|
{
|
|
`upper("hello")`,
|
|
cty.StringVal("HELLO"),
|
|
false,
|
|
},
|
|
{
|
|
`abs(-2)`,
|
|
cty.NumberIntVal(2),
|
|
false,
|
|
},
|
|
{
|
|
`abs(-2.5)`,
|
|
cty.NumberFloatVal(2.5),
|
|
false,
|
|
},
|
|
{
|
|
`cidrsubnet("")`,
|
|
cty.DynamicVal,
|
|
true, // not enough arguments
|
|
},
|
|
{
|
|
`cidrsubnet("10.1.0.0/16", 8, 2)`,
|
|
cty.StringVal("10.1.2.0/24"),
|
|
false,
|
|
},
|
|
{
|
|
`concat([])`,
|
|
// Since HIL doesn't maintain element type information for list
|
|
// types, HCL2 can't either without elements to sniff.
|
|
cty.ListValEmpty(cty.DynamicPseudoType),
|
|
false,
|
|
},
|
|
{
|
|
`concat([], [])`,
|
|
cty.ListValEmpty(cty.DynamicPseudoType),
|
|
false,
|
|
},
|
|
{
|
|
`concat(["a"], ["b", "c"])`,
|
|
cty.ListVal([]cty.Value{
|
|
cty.StringVal("a"),
|
|
cty.StringVal("b"),
|
|
cty.StringVal("c"),
|
|
}),
|
|
false,
|
|
},
|
|
{
|
|
`list()`,
|
|
cty.ListValEmpty(cty.DynamicPseudoType),
|
|
false,
|
|
},
|
|
{
|
|
`list("a", "b", "c")`,
|
|
cty.ListVal([]cty.Value{
|
|
cty.StringVal("a"),
|
|
cty.StringVal("b"),
|
|
cty.StringVal("c"),
|
|
}),
|
|
false,
|
|
},
|
|
{
|
|
`list(list("a"), list("b"), list("c"))`,
|
|
// The types emerge here in a bit of a strange tangle because of
|
|
// the guesswork we do when trying to recover lost information from
|
|
// HIL, but the rest of the language doesn't really care whether
|
|
// we use lists or tuples here as long as we are consistent with
|
|
// the type system invariants.
|
|
cty.ListVal([]cty.Value{
|
|
cty.TupleVal([]cty.Value{cty.StringVal("a")}),
|
|
cty.TupleVal([]cty.Value{cty.StringVal("b")}),
|
|
cty.TupleVal([]cty.Value{cty.StringVal("c")}),
|
|
}),
|
|
false,
|
|
},
|
|
{
|
|
`list(list("a"), "b")`,
|
|
cty.DynamicVal,
|
|
true, // inconsistent types
|
|
},
|
|
{
|
|
`length([])`,
|
|
cty.NumberIntVal(0),
|
|
false,
|
|
},
|
|
{
|
|
`length([2])`,
|
|
cty.NumberIntVal(1),
|
|
false,
|
|
},
|
|
{
|
|
`jsonencode(2)`,
|
|
cty.StringVal(`2`),
|
|
false,
|
|
},
|
|
{
|
|
`jsonencode(true)`,
|
|
cty.StringVal(`true`),
|
|
false,
|
|
},
|
|
{
|
|
`jsonencode("foo")`,
|
|
cty.StringVal(`"foo"`),
|
|
false,
|
|
},
|
|
{
|
|
`jsonencode({})`,
|
|
cty.StringVal(`{}`),
|
|
false,
|
|
},
|
|
{
|
|
`jsonencode([1])`,
|
|
cty.StringVal(`[1]`),
|
|
false,
|
|
},
|
|
{
|
|
`jsondecode("{}")`,
|
|
cty.EmptyObjectVal,
|
|
false,
|
|
},
|
|
{
|
|
`jsondecode("[5, true]")[0]`,
|
|
cty.NumberIntVal(5),
|
|
false,
|
|
},
|
|
}
|
|
|
|
for _, test := range tests {
|
|
t.Run(test.Expr, func(t *testing.T) {
|
|
expr, diags := hcl2syntax.ParseExpression([]byte(test.Expr), "", hcl2.Pos{Line: 1, Column: 1})
|
|
if len(diags) != 0 {
|
|
for _, diag := range diags {
|
|
t.Logf("- %s", diag)
|
|
}
|
|
t.Fatalf("unexpected diagnostics while parsing expression")
|
|
}
|
|
|
|
got, diags := expr.Value(&hcl2.EvalContext{
|
|
Functions: hcl2InterpolationFuncs(),
|
|
})
|
|
gotErr := diags.HasErrors()
|
|
if gotErr != test.Err {
|
|
if test.Err {
|
|
t.Errorf("expected errors but got none")
|
|
} else {
|
|
t.Errorf("unexpected errors")
|
|
for _, diag := range diags {
|
|
t.Logf("- %s", diag)
|
|
}
|
|
}
|
|
}
|
|
if !got.RawEquals(test.Want) {
|
|
t.Errorf("wrong result\nexpr: %s\ngot: %#v\nwant: %#v", test.Expr, got, test.Want)
|
|
}
|
|
})
|
|
}
|
|
}
|