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package lsp
import (
"strconv"
"strings"
"testing"
)
func TestWindowContext_Bounds(t *testing.T) {
s := newTestServer()
s.windowLines = 4 // half=2
s.maxContextTokens = 9999
lines := make([]string, 10)
for i := 0; i < 10; i++ {
lines[i] = "L" + strconv.Itoa(i)
}
text := strings.Join(lines, "\n")
uri := "file:///w.go"
s.setDocument(uri, text)
got := s.windowContext(uri, Position{Line: 5, Character: 0})
// expect lines 3..7 inclusive
want := strings.Join(lines[3:8], "\n")
if got != want {
t.Fatalf("window context got %q want %q", got, want)
}
}
func TestBuildAdditionalContext_Minimal(t *testing.T) {
s := newTestServer()
s.contextMode = "minimal"
if ctx, ok := s.buildAdditionalContext(false, "file:///x.go", Position{}); ok || ctx != "" {
t.Fatalf("expected no context in minimal mode; got ok=%v ctx=%q", ok, ctx)
}
}
func TestBuildAdditionalContext_FileOnNewFunc(t *testing.T) {
s := newTestServer()
s.contextMode = "file-on-new-func"
s.maxContextTokens = 9999
uri := "file:///x.go"
body := "package x\n\nfunc a(){}\n"
s.setDocument(uri, body)
if ctx, ok := s.buildAdditionalContext(true, uri, Position{}); !ok || ctx == "" {
t.Fatalf("expected full context when new func; ok=%v ctx=%q", ok, ctx)
}
if ctx, ok := s.buildAdditionalContext(false, uri, Position{}); ok || ctx != "" {
t.Fatalf("expected no context when not new func; ok=%v ctx=%q", ok, ctx)
}
}
func TestBuildAdditionalContext_AlwaysFull(t *testing.T) {
s := newTestServer()
s.contextMode = "always-full"
s.maxContextTokens = 9999
uri := "file:///x.go"
body := "line1\nline2\n"
s.setDocument(uri, body)
if ctx, ok := s.buildAdditionalContext(false, uri, Position{}); !ok || ctx == "" {
t.Fatalf("expected context in always-full; ok=%v ctx=%q", ok, ctx)
}
}
func TestTruncateToApproxTokens(t *testing.T) {
text := strings.Repeat("abcd", 10) // 40 chars
got := truncateToApproxTokens(text, 5) // ~20 chars
if len(got) > 5*4 {
t.Fatalf("truncate exceeded budget: got len=%d budget=%d", len(got), 5*4)
}
}
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