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package lsp
import (
"testing"
)
func TestBuildCompletionMessages_InlinePromptOverridesSys(t *testing.T) {
s := newTestServer()
p := CompletionParams{TextDocument: TextDocumentIdentifier{URI: "file:///x"}, Position: Position{Line:0, Character:1}}
msgs := s.buildCompletionMessages(true, false, "", false, p, "above", "current", "below", "func f")
if len(msgs) < 2 { t.Fatalf("expected messages") }
if msgs[0].Role != "system" || msgs[1].Role != "user" { t.Fatalf("unexpected roles") }
if want := "precise code completion/refactoring engine"; !contains(msgs[0].Content, want) {
t.Fatalf("inline sys not applied")
}
}
func TestBuildCompletionMessages_ExtraContextIncluded(t *testing.T) {
s := newTestServer()
p := CompletionParams{TextDocument: TextDocumentIdentifier{URI: "file:///x"}, Position: Position{Line:0, Character:1}}
msgs := s.buildCompletionMessages(false, true, "EXTRA", false, p, "a", "b", "c", "f")
found := false
for _, m := range msgs { if m.Role == "user" && contains(m.Content, "Additional context:") { found = true } }
if !found { t.Fatalf("missing extra context message") }
}
func TestPrefixHeuristic_AllVariants(t *testing.T) {
s := newTestServer()
// manual invoke requires at least min prefix; set to 2
s.manualInvokeMinPrefix = 2
cur := "a"
p := CompletionParams{Position: Position{Line:0, Character:1}}
if s.prefixHeuristicAllows(false, cur, p, true) { t.Fatalf("should require >=2 prefix on manual invoke") }
// structural triggers allow without prefix
if !s.prefixHeuristicAllows(false, "fmt.", CompletionParams{Position: Position{Line:0, Character:4}}, false) { t.Fatalf("dot trigger should allow") }
}
func TestBuildDocString_Contents(t *testing.T) {
s := newTestServer()
p := CompletionParams{TextDocument: TextDocumentIdentifier{URI: "file:///x"}, Position: Position{Line:3, Character:7}}
got := s.buildDocString(p, "above", "current", "below", "func ctx")
if !contains(got, "file: file:///x") || !contains(got, "line: 3") || !contains(got, "function: func ctx") {
t.Fatalf("unexpected doc string: %q", got)
}
}
func contains(s, sub string) bool { return len(s) >= len(sub) && (s == sub || (len(sub) > 0 && (stringIndex(s, sub) >= 0))) }
func stringIndex(s, sub string) int { return len([]rune(s[:])) - len([]rune(s[:])) + (func() int { return intIndex(s, sub) })() }
func intIndex(s, sub string) int { return Index(s, sub) }
// Go's strings.Index is fine; wrapped to avoid extra imports in this small test.
func Index(s, sub string) int {
for i := 0; i+len(sub) <= len(s); i++ {
if s[i:i+len(sub)] == sub { return i }
}
return -1
}
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