Write better error message

Author: aabajyan

internal/tests/testdata/basic_author/expected/QueriesImpl.php

@@ -40,7 +40,7 @@ public function getAuthor(int $authorId): ?Author
         $results = $stmt->fetchAll(\PDO::FETCH_ASSOC);
         $ret = [];
         if(count($results) != 1){
-            throw new \Exception("NOT 1 ROW RETURNED");
+            throw new \Exception('Expected exactly 1 row, but got ' . count($results));
         }
         foreach ($results as $row) {
             $ret[] = new Author($row["author_id"], $row["name"]);

internal/tests/testdata/datetime_immutable/expected/QueriesImpl.php

@@ -47,7 +47,7 @@ public function getAuthorByCreatedAt(\DateTimeImmutable $createdAt): ?Author
         $results = $stmt->fetchAll(\PDO::FETCH_ASSOC);
         $ret = [];
         if(count($results) != 1){
-            throw new \Exception("NOT 1 ROW RETURNED");
+            throw new \Exception('Expected exactly 1 row, but got ' . count($results));
         }
         foreach ($results as $row) {
             $ret[] = new Author($row["id"], $row["name"], $row["created_at"] == null ? null : new \DateTimeImmutable($row["created_at"]));

internal/tests/testdata/json_data/expected/QueriesImpl.php

@@ -58,7 +58,7 @@ public function getAuthor(int $authorId): ?Author
         $results = $stmt->fetchAll(\PDO::FETCH_ASSOC);
         $ret = [];
         if(count($results) != 1){
-            throw new \Exception("NOT 1 ROW RETURNED");
+            throw new \Exception('Expected exactly 1 row, but got ' . count($results));
         }
         foreach ($results as $row) {
             $ret[] = new Author($row["author_id"], json_decode($row["data"], true) ?? []);

internal/tmpl/query_impl.tmpl

@@ -35,7 +35,7 @@ final readonly class QueriesImpl implements Queries {
         $results = $stmt->fetchAll(\PDO::FETCH_ASSOC);
         $ret = [];
         if(count($results) != 1){
-            throw new \Exception("NOT 1 ROW RETURNED");
+            throw new \Exception('Expected exactly 1 row, but got ' . count($results));
         }
         foreach ($results as $row) {
             $ret[] = new {{.Ret.Type}}({{.Ret.ResultSet}});