terraform/config/lang/parse_test.go

272 lines
4.5 KiB
Go

package lang
import (
"reflect"
"testing"
"github.com/hashicorp/terraform/config/lang/ast"
)
func TestParse(t *testing.T) {
cases := []struct {
Input string
Error bool
Result ast.Node
}{
{
"",
false,
&ast.LiteralNode{
Value: "",
Type: ast.TypeString,
Posx: ast.Pos{Column: 1, Line: 1},
},
},
{
"foo",
false,
&ast.LiteralNode{
Value: "foo",
Type: ast.TypeString,
Posx: ast.Pos{Column: 1, Line: 1},
},
},
{
"$${var.foo}",
false,
&ast.LiteralNode{
Value: "${var.foo}",
Type: ast.TypeString,
Posx: ast.Pos{Column: 1, Line: 1},
},
},
{
"foo ${var.bar}",
false,
&ast.Concat{
Posx: ast.Pos{Column: 1, Line: 1},
Exprs: []ast.Node{
&ast.LiteralNode{
Value: "foo ",
Type: ast.TypeString,
Posx: ast.Pos{Column: 1, Line: 1},
},
&ast.VariableAccess{
Name: "var.bar",
Posx: ast.Pos{Column: 7, Line: 1},
},
},
},
},
{
"foo ${var.bar} baz",
false,
&ast.Concat{
Posx: ast.Pos{Column: 1, Line: 1},
Exprs: []ast.Node{
&ast.LiteralNode{
Value: "foo ",
Type: ast.TypeString,
Posx: ast.Pos{Column: 1, Line: 1},
},
&ast.VariableAccess{
Name: "var.bar",
Posx: ast.Pos{Column: 7, Line: 1},
},
&ast.LiteralNode{
Value: " baz",
Type: ast.TypeString,
Posx: ast.Pos{Column: 15, Line: 1},
},
},
},
},
{
"foo ${\"bar\"}",
false,
&ast.Concat{
Posx: ast.Pos{Column: 1, Line: 1},
Exprs: []ast.Node{
&ast.LiteralNode{
Value: "foo ",
Type: ast.TypeString,
Posx: ast.Pos{Column: 1, Line: 1},
},
&ast.LiteralNode{
Value: "bar",
Type: ast.TypeString,
Posx: ast.Pos{Column: 7, Line: 1},
},
},
},
},
{
"foo ${42}",
false,
&ast.Concat{
Posx: ast.Pos{Column: 1, Line: 1},
Exprs: []ast.Node{
&ast.LiteralNode{
Value: "foo ",
Type: ast.TypeString,
Posx: ast.Pos{Column: 1, Line: 1},
},
&ast.LiteralNode{
Value: 42,
Type: ast.TypeInt,
Posx: ast.Pos{Column: 7, Line: 1},
},
},
},
},
{
"foo ${3.14159}",
false,
&ast.Concat{
Posx: ast.Pos{Column: 1, Line: 1},
Exprs: []ast.Node{
&ast.LiteralNode{
Value: "foo ",
Type: ast.TypeString,
Posx: ast.Pos{Column: 1, Line: 1},
},
&ast.LiteralNode{
Value: 3.14159,
Type: ast.TypeFloat,
Posx: ast.Pos{Column: 7, Line: 1},
},
},
},
},
{
"${foo()}",
false,
&ast.Call{
Func: "foo",
Args: nil,
Posx: ast.Pos{Column: 3, Line: 1},
},
},
{
"${foo(bar)}",
false,
&ast.Call{
Func: "foo",
Posx: ast.Pos{Column: 3, Line: 1},
Args: []ast.Node{
&ast.VariableAccess{
Name: "bar",
Posx: ast.Pos{Column: 7, Line: 1},
},
},
},
},
{
"${foo(bar, baz)}",
false,
&ast.Call{
Func: "foo",
Posx: ast.Pos{Column: 3, Line: 1},
Args: []ast.Node{
&ast.VariableAccess{
Name: "bar",
Posx: ast.Pos{Column: 7, Line: 1},
},
&ast.VariableAccess{
Name: "baz",
Posx: ast.Pos{Column: 11, Line: 1},
},
},
},
},
{
"${foo(bar(baz))}",
false,
&ast.Call{
Func: "foo",
Posx: ast.Pos{Column: 3, Line: 1},
Args: []ast.Node{
&ast.Call{
Func: "bar",
Posx: ast.Pos{Column: 7, Line: 1},
Args: []ast.Node{
&ast.VariableAccess{
Name: "baz",
Posx: ast.Pos{Column: 11, Line: 1},
},
},
},
},
},
},
{
`foo ${"bar ${baz}"}`,
false,
&ast.Concat{
Posx: ast.Pos{Column: 1, Line: 1},
Exprs: []ast.Node{
&ast.LiteralNode{
Value: "foo ",
Type: ast.TypeString,
Posx: ast.Pos{Column: 1, Line: 1},
},
&ast.Concat{
Posx: ast.Pos{Column: 7, Line: 1},
Exprs: []ast.Node{
&ast.LiteralNode{
Value: "bar ",
Type: ast.TypeString,
Posx: ast.Pos{Column: 7, Line: 1},
},
&ast.VariableAccess{
Name: "baz",
Posx: ast.Pos{Column: 14, Line: 1},
},
},
},
},
},
},
{
`foo ${bar ${baz}}`,
true,
nil,
},
{
`foo ${${baz}}`,
true,
nil,
},
{
"${var",
true,
nil,
},
}
for _, tc := range cases {
actual, err := Parse(tc.Input)
if (err != nil) != tc.Error {
t.Fatalf("Error: %s\n\nInput: %s", err, tc.Input)
}
if !reflect.DeepEqual(actual, tc.Result) {
t.Fatalf("Bad: %#v\n\nInput: %s", actual, tc.Input)
}
}
}