Stricter testing for raised error messages

Author: mochaaP

test/ecto/adapters/sqlite3/connection/cte_test.exs

@@ -176,7 +176,7 @@ defmodule Ecto.Adapters.SQLite3.Connection.CteTest do
       |> plan()
 
     assert_raise Ecto.QueryError,
-                 ~r/join `:left_lateral` not supported by SQLite3/,
+                 ~r/^join `:left_lateral` not supported by SQLite3/,
                  fn ->
                    all(query)
                  end

test/ecto/adapters/sqlite3/connection/from_test.exs

@@ -62,7 +62,7 @@ defmodule Ecto.Adapters.SQLite3.Connection.FromTest do
 
     test "raises when selecting all fields without a schema" do
       assert_raise Ecto.QueryError,
-                   ~r"SQLite3 does not support selecting all fields from \"posts\" without a schema",
+                   ~r"^SQLite3 does not support selecting all fields from \"posts\" without a schema",
                    fn ->
                      all(from(p in "posts", select: p) |> plan())
                    end

test/ecto/adapters/sqlite3/connection/join_test.exs

@@ -29,7 +29,7 @@ defmodule Ecto.Adapters.SQLite3.Connection.JoinTest do
   end
 
   test "join with hints are not supported" do
-    assert_raise Ecto.QueryError, ~r/join hints are not supported by SQLite3/, fn ->
+    assert_raise Ecto.QueryError, ~r/^join hints are not supported by SQLite3/, fn ->
       Schema
       |> join(:inner, [p], q in Schema2,
         hints: ["USE INDEX FOO", "USE INDEX BAR"],