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|
package tuigen
import (
"testing"
)
func TestParser_CommentAttachment_LeadingCommentOnComponent(t *testing.T) {
input := `package x
// This is a doc comment for Header
// It spans multiple lines
templ Header() {
<span>Hello</span>
}`
l := NewLexer("test.gsx", input)
p := NewParser(l)
file, err := p.ParseFile()
if err != nil {
t.Fatalf("unexpected error: %v", err)
}
if len(file.Components) != 1 {
t.Fatalf("expected 1 component, got %d", len(file.Components))
}
comp := file.Components[0]
if comp.LeadingComments == nil {
t.Fatal("expected LeadingComments, got nil")
}
if len(comp.LeadingComments.List) != 2 {
t.Fatalf("expected 2 comments in group, got %d", len(comp.LeadingComments.List))
}
if comp.LeadingComments.List[0].Text != "// This is a doc comment for Header" {
t.Errorf("comment 0 text = %q", comp.LeadingComments.List[0].Text)
}
if comp.LeadingComments.List[1].Text != "// It spans multiple lines" {
t.Errorf("comment 1 text = %q", comp.LeadingComments.List[1].Text)
}
}
func TestParser_CommentAttachment_TrailingCommentOnComponent(t *testing.T) {
input := `package x
templ Header() { // trailing comment on brace
<span>Hello</span>
}`
l := NewLexer("test.gsx", input)
p := NewParser(l)
file, err := p.ParseFile()
if err != nil {
t.Fatalf("unexpected error: %v", err)
}
comp := file.Components[0]
if comp.TrailingComments == nil {
t.Fatal("expected TrailingComments, got nil")
}
if len(comp.TrailingComments.List) != 1 {
t.Fatalf("expected 1 trailing comment, got %d", len(comp.TrailingComments.List))
}
if comp.TrailingComments.List[0].Text != "// trailing comment on brace" {
t.Errorf("trailing comment text = %q", comp.TrailingComments.List[0].Text)
}
}
func TestParser_CommentAttachment_OrphanCommentInComponentBody(t *testing.T) {
input := `package x
templ Header() {
// orphan comment in body
<span>Hello</span>
}`
l := NewLexer("test.gsx", input)
p := NewParser(l)
file, err := p.ParseFile()
if err != nil {
t.Fatalf("unexpected error: %v", err)
}
comp := file.Components[0]
if len(comp.Body) != 1 {
t.Fatalf("expected 1 body node, got %d", len(comp.Body))
}
elem, ok := comp.Body[0].(*Element)
if !ok {
t.Fatalf("expected *Element, got %T", comp.Body[0])
}
if elem.LeadingComments == nil {
t.Fatal("expected LeadingComments on element, got nil")
}
if len(elem.LeadingComments.List) != 1 {
t.Fatalf("expected 1 leading comment, got %d", len(elem.LeadingComments.List))
}
if elem.LeadingComments.List[0].Text != "// orphan comment in body" {
t.Errorf("leading comment text = %q", elem.LeadingComments.List[0].Text)
}
}
func TestParser_CommentAttachment_OrphanCommentWithNoFollowingNode(t *testing.T) {
input := `package x
templ Header() {
<span>Hello</span>
// trailing orphan comment
}`
l := NewLexer("test.gsx", input)
p := NewParser(l)
file, err := p.ParseFile()
if err != nil {
t.Fatalf("unexpected error: %v", err)
}
comp := file.Components[0]
if len(comp.OrphanComments) != 1 {
t.Fatalf("expected 1 orphan comment group, got %d", len(comp.OrphanComments))
}
if len(comp.OrphanComments[0].List) != 1 {
t.Fatalf("expected 1 comment in orphan group, got %d", len(comp.OrphanComments[0].List))
}
if comp.OrphanComments[0].List[0].Text != "// trailing orphan comment" {
t.Errorf("orphan comment text = %q", comp.OrphanComments[0].List[0].Text)
}
}
func TestParser_CommentAttachment_OrphanCommentInFile(t *testing.T) {
input := `package x
templ Header() {
<span>Hello</span>
}
// orphan comment at end of file`
l := NewLexer("test.gsx", input)
p := NewParser(l)
file, err := p.ParseFile()
if err != nil {
t.Fatalf("unexpected error: %v", err)
}
if len(file.OrphanComments) != 1 {
t.Fatalf("expected 1 orphan comment group in file, got %d", len(file.OrphanComments))
}
if file.OrphanComments[0].List[0].Text != "// orphan comment at end of file" {
t.Errorf("orphan comment text = %q", file.OrphanComments[0].List[0].Text)
}
}
func TestParser_CommentAttachment_LeadingCommentBeforePackage(t *testing.T) {
input := `// File header comment
// License info
package x
templ Header() {
<span>Hello</span>
}`
l := NewLexer("test.gsx", input)
p := NewParser(l)
file, err := p.ParseFile()
if err != nil {
t.Fatalf("unexpected error: %v", err)
}
if file.LeadingComments == nil {
t.Fatal("expected LeadingComments on file, got nil")
}
if len(file.LeadingComments.List) != 2 {
t.Fatalf("expected 2 comments in file leading group, got %d", len(file.LeadingComments.List))
}
}
func TestParser_CommentGrouping_BlankLineSeparation(t *testing.T) {
type tc struct {
comments []*Comment
wantGroups int
}
tests := map[string]tc{
"single comment": {
comments: []*Comment{
{Text: "// a", Position: Position{Line: 1}, EndLine: 1},
},
wantGroups: 1,
},
"adjacent comments": {
comments: []*Comment{
{Text: "// a", Position: Position{Line: 1}, EndLine: 1},
{Text: "// b", Position: Position{Line: 2}, EndLine: 2},
},
wantGroups: 1,
},
"blank line separation": {
comments: []*Comment{
{Text: "// a", Position: Position{Line: 1}, EndLine: 1},
{Text: "// b", Position: Position{Line: 3}, EndLine: 3},
},
wantGroups: 2,
},
"multiple groups": {
comments: []*Comment{
{Text: "// a", Position: Position{Line: 1}, EndLine: 1},
{Text: "// b", Position: Position{Line: 2}, EndLine: 2},
{Text: "// c", Position: Position{Line: 5}, EndLine: 5},
{Text: "// d", Position: Position{Line: 6}, EndLine: 6},
},
wantGroups: 2,
},
}
for name, tt := range tests {
t.Run(name, func(t *testing.T) {
groups := groupComments(tt.comments)
if len(groups) != tt.wantGroups {
t.Errorf("got %d groups, want %d", len(groups), tt.wantGroups)
}
})
}
}
|