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package lsp
import (
"bytes"
"context"
"encoding/json"
"errors"
"testing"
"codeberg.org/snonux/hexai/internal/appconfig"
"codeberg.org/snonux/hexai/internal/llm"
)
func TestResolveCodeAction_Custom_UnknownID(t *testing.T) {
s := newTestServer()
// No matching custom action configured
cfg := s.cfg
cfg.CustomActions = []appconfig.CustomAction{{ID: "known", Title: "Known", Instruction: "x"}}
s.cfg = cfg
uri := "file:///t.go"
payload := struct {
Type string `json:"type"`
ID string `json:"id"`
URI string `json:"uri"`
Range Range `json:"range"`
Selection string `json:"selection"`
}{Type: "custom", ID: "missing", URI: uri, Range: Range{}, Selection: "abc"}
raw, _ := json.Marshal(payload)
ca := CodeAction{Title: "Hexai: X", Data: raw}
if _, ok := s.resolveCodeAction(ca); ok {
t.Fatalf("expected resolve to fail for unknown custom id")
}
}
type errLLM struct{}
func (errLLM) Chat(_ context.Context, _ []llm.Message, _ ...llm.RequestOption) (string, error) {
return "", errors.New("boom")
}
func (errLLM) Name() string { return "prov" }
func (errLLM) DefaultModel() string { return "m" }
func TestResolveCodeAction_Custom_EmptyAndError(t *testing.T) {
// empty output case
s1 := newTestServer()
s1.llmClient = fakeLLM{resp: " \n\n"}
cfg1 := s1.cfg
cfg1.CustomActions = []appconfig.CustomAction{{ID: "empty", Title: "Empty", Instruction: "x"}}
s1.cfg = cfg1
raw1, _ := json.Marshal(struct {
Type, ID, URI, Selection string
Range Range
}{"custom", "empty", "file:///t.go", "sel", Range{}})
if resolved, ok := s1.resolveCodeAction(CodeAction{Data: raw1}); ok || resolved.Edit != nil {
t.Fatalf("expected no edit for empty llm output")
}
// error case
s2 := newTestServer()
s2.llmClient = errLLM{}
cfg2 := s2.cfg
cfg2.CustomActions = []appconfig.CustomAction{{ID: "err", Title: "Err", Instruction: "x"}}
s2.cfg = cfg2
raw2, _ := json.Marshal(struct {
Type, ID, URI, Selection string
Range Range
}{"custom", "err", "file:///t.go", "sel", Range{}})
if resolved, ok := s2.resolveCodeAction(CodeAction{Data: raw2}); ok || resolved.Edit != nil {
t.Fatalf("expected no edit for llm error")
}
}
func TestHandleCodeAction_Custom_SelectionSuppressedWhenEmpty(t *testing.T) {
s := newTestServer()
s.llmClient = fakeLLM{resp: "IGN"}
// One selection-scoped and one diagnostics-scoped custom
cfg := s.cfg
cfg.CustomActions = []appconfig.CustomAction{
{ID: "sel", Title: "Sel", Scope: "selection", Instruction: "x"},
{ID: "diag", Title: "Diag", Scope: "diagnostics", User: "{{diagnostics}}"},
}
s.cfg = cfg
uri := "file:///t.go"
s.setDocument(uri, "package p\nfunc f(){}\n")
// Empty selection range (start==end)
p := CodeActionParams{TextDocument: TextDocumentIdentifier{URI: uri}, Range: Range{Start: Position{Line: 1}, End: Position{Line: 1}}}
// include a diagnostic so diagnostics action is allowed
ctx := CodeActionContext{Diagnostics: []Diagnostic{{Range: Range{Start: Position{Line: 1}}, Message: "x"}}}
rawCtx, _ := json.Marshal(ctx)
p.Context = json.RawMessage(rawCtx)
// Build request
req := Request{JSONRPC: "2.0", ID: json.RawMessage("1"), Method: "textDocument/codeAction"}
req.Params, _ = json.Marshal(p)
// capture
var out bytes.Buffer
s.out = &out
s.handleCodeAction(req)
resp := captureResponse(t, &out)
rb, _ := json.Marshal(resp.Result)
var actions []CodeAction
_ = json.Unmarshal(rb, &actions)
seenSel, seenDiag := false, false
for _, a := range actions {
if a.Title == "Hexai: Sel" {
seenSel = true
}
if a.Title == "Hexai: Diag" {
seenDiag = true
}
}
if seenSel || !seenDiag {
t.Fatalf("expected only diagnostics custom when selection is empty; got %+v", actions)
}
}
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