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|
package hcl
import (
"testing"
)
type asTraversalSupported struct {
staticExpr
RootName string
}
type asTraversalSupportedAttr struct {
staticExpr
RootName string
AttrName string
}
type asTraversalNotSupported struct {
staticExpr
}
type asTraversalDeclined struct {
staticExpr
}
type asTraversalWrappedDelegated struct {
original Expression
staticExpr
}
func (e asTraversalSupported) AsTraversal() Traversal {
return Traversal{
TraverseRoot{
Name: e.RootName,
},
}
}
func (e asTraversalSupportedAttr) AsTraversal() Traversal {
return Traversal{
TraverseRoot{
Name: e.RootName,
},
TraverseAttr{
Name: e.AttrName,
},
}
}
func (e asTraversalDeclined) AsTraversal() Traversal {
return nil
}
func (e asTraversalWrappedDelegated) UnwrapExpression() Expression {
return e.original
}
func TestAbsTraversalForExpr(t *testing.T) {
tests := []struct {
Expr Expression
WantRootName string
}{
{
asTraversalSupported{RootName: "foo"},
"foo",
},
{
asTraversalNotSupported{},
"",
},
{
asTraversalDeclined{},
"",
},
{
asTraversalWrappedDelegated{
original: asTraversalSupported{RootName: "foo"},
},
"foo",
},
{
asTraversalWrappedDelegated{
original: asTraversalWrappedDelegated{
original: asTraversalSupported{RootName: "foo"},
},
},
"foo",
},
}
for _, test := range tests {
t.Run("", func(t *testing.T) {
got, diags := AbsTraversalForExpr(test.Expr)
switch {
case got != nil:
if test.WantRootName == "" {
t.Fatalf("traversal was returned; want error")
}
if len(got) != 1 {
t.Fatalf("wrong traversal length %d; want 1", len(got))
}
gotRoot, ok := got[0].(TraverseRoot)
if !ok {
t.Fatalf("first traversal step is %T; want hcl.TraverseRoot", got[0])
}
if gotRoot.Name != test.WantRootName {
t.Errorf("wrong root name %q; want %q", gotRoot.Name, test.WantRootName)
}
default:
if !diags.HasErrors() {
t.Errorf("returned nil traversal without error diagnostics")
}
if test.WantRootName != "" {
t.Errorf("traversal was not returned; want TraverseRoot(%q)", test.WantRootName)
}
}
})
}
}
func TestRelTraversalForExpr(t *testing.T) {
tests := []struct {
Expr Expression
WantFirstName string
}{
{
asTraversalSupported{RootName: "foo"},
"foo",
},
{
asTraversalNotSupported{},
"",
},
{
asTraversalDeclined{},
"",
},
}
for _, test := range tests {
t.Run("", func(t *testing.T) {
got, diags := RelTraversalForExpr(test.Expr)
switch {
case got != nil:
if test.WantFirstName == "" {
t.Fatalf("traversal was returned; want error")
}
if len(got) != 1 {
t.Fatalf("wrong traversal length %d; want 1", len(got))
}
gotRoot, ok := got[0].(TraverseAttr)
if !ok {
t.Fatalf("first traversal step is %T; want hcl.TraverseAttr", got[0])
}
if gotRoot.Name != test.WantFirstName {
t.Errorf("wrong root name %q; want %q", gotRoot.Name, test.WantFirstName)
}
default:
if !diags.HasErrors() {
t.Errorf("returned nil traversal without error diagnostics")
}
if test.WantFirstName != "" {
t.Errorf("traversal was not returned; want TraverseAttr(%q)", test.WantFirstName)
}
}
})
}
}
func TestExprAsKeyword(t *testing.T) {
tests := []struct {
Expr Expression
Want string
}{
{
asTraversalSupported{RootName: "foo"},
"foo",
},
{
asTraversalSupportedAttr{
RootName: "foo",
AttrName: "bar",
},
"",
},
{
asTraversalNotSupported{},
"",
},
{
asTraversalDeclined{},
"",
},
{
asTraversalWrappedDelegated{
original: asTraversalSupported{RootName: "foo"},
},
"foo",
},
{
asTraversalWrappedDelegated{
original: asTraversalWrappedDelegated{
original: asTraversalSupported{RootName: "foo"},
},
},
"foo",
},
}
for _, test := range tests {
t.Run("", func(t *testing.T) {
got := ExprAsKeyword(test.Expr)
if got != test.Want {
t.Errorf("wrong result %q; want %q\ninput: %T", got, test.Want, test.Expr)
}
})
}
}
|
