chore: import upstream snapshot with attribution

internal/resolver/sql_callsites_test.go

@@ -0,0 +1,62 @@
+package resolver
+
+import (
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+
+	"github.com/zzet/gortex/internal/graph"
+)
+
+func sqlFnNode(g graph.Store, id, name string) {
+	g.AddNode(&graph.Node{ID: id, Kind: graph.KindFunction, Name: name, FilePath: "schema.sql", Language: "sql"})
+}
+
+func sqlCaller(g graph.Store, callerID, fn string) *graph.Edge {
+	g.AddNode(&graph.Node{ID: callerID, Kind: graph.KindFunction, Name: lastSeg(callerID), FilePath: "app.ts", Language: "typescript"})
+	e := &graph.Edge{
+		From: callerID, To: "unresolved::sqlfn::" + fn, Kind: graph.EdgeCalls,
+		FilePath: "app.ts", Line: 2, Meta: map[string]any{"via": sqlCallsiteVia, "sql_function": fn},
+	}
+	g.AddEdge(e)
+	return e
+}
+
+func TestResolveSQLCallsites_Lands(t *testing.T) {
+	g := graph.New()
+	e := sqlCaller(g, "app.ts::load", "get_user_stats")
+	sqlFnNode(g, "schema.sql::get_user_stats", "get_user_stats")
+
+	n := ResolveSQLCallsites(g)
+	assert.Equal(t, 1, n)
+	assert.Equal(t, "schema.sql::get_user_stats", e.To)
+	assert.Equal(t, graph.OriginASTInferred, e.Origin)
+	assert.Equal(t, SynthSQLCallsite, e.Meta[MetaSynthesizedBy])
+	require.Len(t, g.GetInEdges("schema.sql::get_user_stats"), 1)
+}
+
+func TestResolveSQLCallsites_AmbiguousStaysPlaceholder(t *testing.T) {
+	g := graph.New()
+	e := sqlCaller(g, "app.ts::load", "calc")
+	sqlFnNode(g, "a.sql::calc", "calc")
+	sqlFnNode(g, "b.sql::calc", "calc")
+	assert.Equal(t, 0, ResolveSQLCallsites(g))
+	assert.Equal(t, "unresolved::sqlfn::calc", e.To, "ambiguous SQL function stays unresolved")
+}
+
+func TestResolveSQLCallsites_NoSQLFunction(t *testing.T) {
+	g := graph.New()
+	sqlCaller(g, "app.ts::load", "ghost")
+	assert.Equal(t, 0, ResolveSQLCallsites(g))
+}
+
+func TestResolveSQLCallsites_Idempotent(t *testing.T) {
+	g := graph.New()
+	sqlCaller(g, "app.ts::load", "fn")
+	sqlFnNode(g, "schema.sql::fn", "fn")
+	first := ResolveSQLCallsites(g)
+	second := ResolveSQLCallsites(g)
+	assert.Equal(t, first, second)
+	assert.Equal(t, 1, second)
+}