Replace the Auth and Auth::TLS singletons

Use a builder pattern for creation and validation, in a manner that
allows also other authentication methods to be added in the future
besides the current TLS/SSL.

The main Auth instances are built early and then passed by not_null
const pointers, to avoid passing temporaries, replacing the previous
Auth::TLS instances passed by simple nullable const pointers. Where
needed, these passed Auth instances are also stored, by const ref.

Tests also build Auth instances as needed, either with the default
'no certification' or from the test environment arguments.

1 files changed, 15 insertions, 12 deletions

diff --git a/test/buildtool/graph_traverser/graph_traverser.test.hpp b/test/buildtool/graph_traverser/graph_traverser.test.hpp
index 7d23dcd5..f1be7eec 100644
--- a/test/buildtool/graph_traverser/graph_traverser.test.hpp
+++ b/test/buildtool/graph_traverser/graph_traverser.test.hpp
@@ -26,6 +26,7 @@
 #include <vector>
 
 #include "catch2/catch_test_macros.hpp"
+#include "gsl/gsl"
 #include "nlohmann/json.hpp"
 #include "src/buildtool/auth/authentication.hpp"
 #include "src/buildtool/common/statistics.hpp"
@@ -38,7 +39,6 @@
 #include "src/buildtool/logging/logger.hpp"
 #include "src/buildtool/progress_reporting/progress.hpp"
 #include "src/utils/cpp/json.hpp"
-#include "test/utils/test_env.hpp"
 
 // NOLINTNEXTLINE(google-build-namespaces)
 namespace {
@@ -152,7 +152,7 @@ inline void SetLauncher() {
 }  // namespace
 
 [[maybe_unused]] static void TestHelloWorldCopyMessage(
-    Auth::TLS const* auth,
+    gsl::not_null<Auth const*> const& auth,
     bool is_hermetic = true) {
     TestProject p("hello_world_copy_message");
 
@@ -217,8 +217,9 @@ inline void SetLauncher() {
     }
 }
 
-[[maybe_unused]] static void TestCopyLocalFile(Auth::TLS const* auth,
-                                               bool is_hermetic = true) {
+[[maybe_unused]] static void TestCopyLocalFile(
+    gsl::not_null<Auth const*> const& auth,
+    bool is_hermetic = true) {
     TestProject p("copy_local_file");
 
     SetLauncher();
@@ -249,7 +250,7 @@ inline void SetLauncher() {
 }
 
 [[maybe_unused]] static void TestSequencePrinterBuildLibraryOnly(
-    Auth::TLS const* auth,
+    gsl::not_null<Auth const*> const& auth,
     bool is_hermetic = true) {
     TestProject p("sequence_printer_build_library_only");
 
@@ -301,7 +302,7 @@ inline void SetLauncher() {
 }
 
 [[maybe_unused]] static void TestHelloWorldWithKnownSource(
-    Auth::TLS const* auth,
+    gsl::not_null<Auth const*> const& auth,
     bool is_hermetic = true) {
     TestProject full_hello_world("hello_world_copy_message");
 
@@ -360,7 +361,7 @@ inline void SetLauncher() {
     }
 }
 
-static void TestBlobsUploadedAndUsed(Auth::TLS const* auth,
+static void TestBlobsUploadedAndUsed(gsl::not_null<Auth const*> const& auth,
                                      bool is_hermetic = true) {
     TestProject p("use_uploaded_blobs");
     auto const clargs = p.CmdLineArgs();
@@ -399,8 +400,9 @@ static void TestBlobsUploadedAndUsed(Auth::TLS const* auth,
     }
 }
 
-static void TestEnvironmentVariablesSetAndUsed(Auth::TLS const* auth,
-                                               bool is_hermetic = true) {
+static void TestEnvironmentVariablesSetAndUsed(
+    gsl::not_null<Auth const*> const& auth,
+    bool is_hermetic = true) {
     TestProject p("use_env_variables");
     auto const clargs = p.CmdLineArgs();
 
@@ -438,7 +440,8 @@ static void TestEnvironmentVariablesSetAndUsed(Auth::TLS const* auth,
     }
 }
 
-static void TestTreesUsed(Auth::TLS const* auth, bool is_hermetic = true) {
+static void TestTreesUsed(gsl::not_null<Auth const*> const& auth,
+                          bool is_hermetic = true) {
     TestProject p("use_trees");
     auto const clargs = p.CmdLineArgs();
 
@@ -476,7 +479,7 @@ static void TestTreesUsed(Auth::TLS const* auth, bool is_hermetic = true) {
     }
 }
 
-static void TestNestedTreesUsed(Auth::TLS const* auth,
+static void TestNestedTreesUsed(gsl::not_null<Auth const*> const& auth,
                                 bool is_hermetic = true) {
     TestProject p("use_nested_trees");
     auto const clargs = p.CmdLineArgs();
@@ -515,7 +518,7 @@ static void TestNestedTreesUsed(Auth::TLS const* auth,
     }
 }
 
-static void TestFlakyHelloWorldDetected(Auth::TLS const* auth,
+static void TestFlakyHelloWorldDetected(gsl::not_null<Auth const*> const& auth,
                                         bool /*is_hermetic*/ = true) {
     TestProject p("flaky_hello_world");