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package lsp
import (
"encoding/json"
"path/filepath"
"strings"
"testing"
)
func TestBuildDocumentCodeAction_AndResolve(t *testing.T) {
s := newTestServer()
s.llmClient = fakeLLM{resp: "// doc\nfunc add(a,b int) int { return a+b }"}
uri := "file:///doc.go"
s.setDocument(uri, "package x\nfunc add(a,b int) int {return a+b}")
p := CodeActionParams{TextDocument: TextDocumentIdentifier{URI: uri}, Range: Range{Start: Position{Line:1, Character:0}, End: Position{Line:1, Character:10}}}
sel := "func add(a,b int) int {return a+b}"
ca := s.buildDocumentCodeAction(p, sel)
if ca == nil { t.Fatalf("expected document code action") }
resolved, ok := s.resolveCodeAction(*ca)
if !ok || resolved.Edit == nil { t.Fatalf("expected resolved edit") }
edits := resolved.Edit.Changes[uri]
if len(edits) != 1 || strings.TrimSpace(edits[0].NewText) == "" { t.Fatalf("expected replacement text") }
}
func TestBuildGoUnitTestCodeAction_AndResolveCreate(t *testing.T) {
s := newTestServer()
// place files under a temp dir to avoid collisions
dir := t.TempDir()
srcPath := filepath.Join(dir, "calc.go")
uri := "file://" + srcPath
src := "package calc\n\nfunc Sum(a, b int) int { return a+b }\n"
s.setDocument(uri, src)
// Offer action (not a _test.go)
p := CodeActionParams{TextDocument: TextDocumentIdentifier{URI: uri}, Range: Range{Start: Position{Line:2}}}
if a := s.buildGoUnitTestCodeAction(p); a == nil { t.Fatalf("expected go unit test action") }
// Resolve should create new test file with package+import and a test function
we, testURI, _, ok := s.resolveGoTest(uri, Position{Line:2})
if !ok { t.Fatalf("resolveGoTest failed") }
if len(we.DocumentChanges) != 2 { t.Fatalf("expected create + edits, got %d", len(we.DocumentChanges)) }
if !strings.HasSuffix(testURI, "_test.go") { t.Fatalf("unexpected test URI: %s", testURI) }
}
func TestBuildGoUnitTestCodeAction_SkipOnTestFile(t *testing.T) {
s := newTestServer()
uri := "file:///tmp/x_test.go"
s.setDocument(uri, "package p\nfunc T(){}")
p := CodeActionParams{TextDocument: TextDocumentIdentifier{URI: uri}}
if a := s.buildGoUnitTestCodeAction(p); a != nil { t.Fatalf("expected no action on _test.go") }
}
func TestDiagnosticsInRange(t *testing.T) {
s := newTestServer()
ctx := CodeActionContext{Diagnostics: []Diagnostic{
{Range: Range{Start: Position{Line: 3}, End: Position{Line: 3, Character: 5}}, Message: "in"},
{Range: Range{Start: Position{Line: 10}, End: Position{Line: 11}}, Message: "out"},
}}
raw, _ := json.Marshal(ctx)
got := s.diagnosticsInRange(json.RawMessage(raw), Range{Start: Position{Line:2}, End: Position{Line:4}})
if len(got) != 1 || got[0].Message != "in" { t.Fatalf("unexpected diags: %+v", got) }
}
func TestDocBeforeAfter(t *testing.T) {
s := newTestServer()
uri := "file:///d.go"
s.setDocument(uri, "ab\ncd\nef")
before, after := s.docBeforeAfter(uri, Position{Line:1, Character:1})
if before != "ab\nc" || after != "d\nef" { t.Fatalf("before=%q after=%q", before, after) }
}
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