test: more verbose failure msg, use contains [ci skip]

pkg/secret/secret_test.go

@@ -33,9 +33,7 @@ func TestReadSecretsConfigWithLongDomain(t *testing.T) {
 	composeFiles := []string{"./testdir/compose.yaml"}
 	_, err := ReadSecretsConfig("./testdir/.env.sample", composeFiles, "should_break_on_forty_eight_char_stack_nameeeeee")
 	if err == nil {
-		t.Fatal("Expected to fail")
+		t.Fatal("expected failure, stack name is too long")
 	}
-
-	// Check error
-	assert.Equal(t, "secret test_pass_one is > 64 chars when combined with should_break_on_forty_eight_char_stack_nameeeeee", err.Error())
+	assert.Contains(t, err.Error(), "is > 64 chars")
 }