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package lsp
import (
"bytes"
"encoding/json"
"os"
"path/filepath"
"strings"
"testing"
)
func TestHandleExit(t *testing.T) {
s := NewServer(strings.NewReader(""), new(bytes.Buffer))
result, rpcErr := s.router.Route(Request{JSONRPC: "2.0", Method: "exit"})
if result != nil || rpcErr != nil {
t.Errorf("exit: result=%v err=%v, want nil/nil", result, rpcErr)
}
}
func TestDocumentSync_InvalidParams(t *testing.T) {
type tc struct {
method string
}
tests := map[string]tc{
"didOpen": {method: "textDocument/didOpen"},
"didChange": {method: "textDocument/didChange"},
"didClose": {method: "textDocument/didClose"},
"didSave": {method: "textDocument/didSave"},
}
s := NewServer(strings.NewReader(""), new(bytes.Buffer))
for name, tt := range tests {
t.Run(name, func(t *testing.T) {
_, rpcErr := s.router.Route(Request{
JSONRPC: "2.0", Method: tt.method, Params: json.RawMessage(`[]`),
})
if rpcErr == nil || rpcErr.Code != CodeInvalidParams {
t.Fatalf("error = %v, want code %d", rpcErr, CodeInvalidParams)
}
})
}
}
func TestHandleDidChange_NoContentChanges(t *testing.T) {
uri := "file:///nc.gsx"
s, _ := newRoutedServer(t, uri, routerCoverageSrc)
params := mustJSON(t, DidChangeParams{
TextDocument: VersionedTextDocumentIdentifier{URI: uri, Version: 2},
ContentChanges: nil,
})
result, rpcErr := s.router.Route(Request{JSONRPC: "2.0", Method: "textDocument/didChange", Params: params})
if result != nil || rpcErr != nil {
t.Fatalf("result=%v err=%v, want nil/nil", result, rpcErr)
}
doc := s.docs.Get(uri)
if doc == nil || doc.Version != 1 {
t.Errorf("document version changed unexpectedly: %+v", doc)
}
}
func TestHandleDidClose_UnopenedDocument(t *testing.T) {
s := NewServer(strings.NewReader(""), new(bytes.Buffer))
uri := "file:///never-opened.gsx"
params := mustJSON(t, DidCloseParams{TextDocument: TextDocumentIdentifier{URI: uri}})
result, rpcErr := s.router.Route(Request{JSONRPC: "2.0", Method: "textDocument/didClose", Params: params})
if result != nil || rpcErr != nil {
t.Fatalf("result=%v err=%v, want nil/nil", result, rpcErr)
}
s.workspaceASTsMu.RLock()
_, cached := s.workspaceASTs[uri]
s.workspaceASTsMu.RUnlock()
if cached {
t.Error("unexpected workspace AST cache entry for unopened document")
}
}
func TestHandleDidSave(t *testing.T) {
uri := "file:///save.gsx"
s, _ := newRoutedServer(t, uri, routerCoverageSrc)
updated := strings.Replace(routerCoverageSrc, "templ Header", "templ Banner", 1)
params := mustJSON(t, DidSaveParams{
TextDocument: TextDocumentIdentifier{URI: uri},
Text: &updated,
})
if _, rpcErr := s.router.Route(Request{JSONRPC: "2.0", Method: "textDocument/didSave", Params: params}); rpcErr != nil {
t.Fatalf("didSave: %v", rpcErr)
}
doc := s.docs.Get(uri)
if doc == nil {
t.Fatal("document missing after save")
}
if doc.Version != 2 {
t.Errorf("version = %d, want 2", doc.Version)
}
if !strings.Contains(doc.Content, "templ Banner") {
t.Error("document content was not updated from save text")
}
if _, ok := s.index.Lookup("Banner"); !ok {
t.Error("index was not refreshed with renamed component")
}
noText := mustJSON(t, DidSaveParams{TextDocument: TextDocumentIdentifier{URI: uri}})
if _, rpcErr := s.router.Route(Request{JSONRPC: "2.0", Method: "textDocument/didSave", Params: noText}); rpcErr != nil {
t.Fatalf("didSave without text: %v", rpcErr)
}
if got := s.docs.Get(uri).Version; got != 2 {
t.Errorf("version after textless save = %d, want 2", got)
}
other := "package main"
closed := mustJSON(t, DidSaveParams{
TextDocument: TextDocumentIdentifier{URI: "file:///closed.gsx"},
Text: &other,
})
if _, rpcErr := s.router.Route(Request{JSONRPC: "2.0", Method: "textDocument/didSave", Params: closed}); rpcErr != nil {
t.Fatalf("didSave closed doc: %v", rpcErr)
}
if s.docs.Get("file:///closed.gsx") != nil {
t.Error("save must not open a closed document")
}
}
func TestIndexWorkspace(t *testing.T) {
tmp := t.TempDir()
writeFile := func(rel, content string) string {
t.Helper()
path := filepath.Join(tmp, rel)
if err := os.MkdirAll(filepath.Dir(path), 0o755); err != nil {
t.Fatal(err)
}
if err := os.WriteFile(path, []byte(content), 0o644); err != nil {
t.Fatal(err)
}
return path
}
writeFile("good.gsx", "package main\n\ntempl Good() {\n\t<span>ok</span>\n}\n")
writeFile("broken.gsx", "package main\n\ntempl Broken( {\n")
writeFile("notes.txt", "not a gsx file")
writeFile(".hidden/skipped.gsx", "package main\n\ntempl Hidden() {\n\t<span>no</span>\n}\n")
writeFile("vendor/v.gsx", "package main\n\ntempl Vendored() {\n\t<span>no</span>\n}\n")
writeFile("node_modules/n.gsx", "package main\n\ntempl NodeMod() {\n\t<span>no</span>\n}\n")
openPath := writeFile("open.gsx", "package main\n\ntempl AlreadyOpen() {\n\t<span>open</span>\n}\n")
s := NewServer(strings.NewReader(""), new(bytes.Buffer))
s.rootURI = "file://" + tmp
openURI := "file://" + openPath
s.docs.Open(openURI, "package main\n\ntempl AlreadyOpen() {\n\t<span>open</span>\n}\n", 1)
s.indexWorkspace()
if _, ok := s.index.Lookup("Good"); !ok {
t.Error("Good component was not indexed")
}
for _, name := range []string{"Hidden", "Vendored", "NodeMod"} {
if _, ok := s.index.Lookup(name); ok {
t.Errorf("%s should have been skipped by directory filters", name)
}
}
s.workspaceASTsMu.RLock()
_, goodCached := s.workspaceASTs["file://"+filepath.Join(tmp, "good.gsx")]
_, openCached := s.workspaceASTs[openURI]
s.workspaceASTsMu.RUnlock()
if !goodCached {
t.Error("good.gsx AST missing from workspace cache")
}
if openCached {
t.Error("open document must not be re-cached by the workspace walk")
}
}
func TestIndexWorkspace_NoRoot(t *testing.T) {
s := NewServer(strings.NewReader(""), new(bytes.Buffer))
s.rootURI = ""
s.indexWorkspace()
if got := len(s.index.All()); got != 0 {
t.Errorf("indexed %d components without a root", got)
}
}
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