test: add sarif test fixture

test/sarif/CMakeLists.txt

@@ -1,7 +1,7 @@
 # Copyright 2024, Trail of Bits, Inc. All rights reserved.
 
 add_gap_test(test-gap-sarif
-    sarif.cpp
+    definitions.cpp
 )
 
 target_link_libraries(test-gap-sarif

test/sarif/definitions.cpp

@@ -0,0 +1,79 @@
+// Copyright (c) 2024-present, Trail of Bits, Inc.
+
+#include <doctest/doctest.h>
+#include <gap/sarif/definitions.hpp>
+#include <memory>
+#include <vector>
+
+namespace gap::sarif::definitions {
+    TEST_CASE("Roundtrip") {
+        // Sample SARIF output from https://github.com/microsoft/sarif-tutorials/blob/main/docs/1-Introduction.md
+        root_struct root{
+            .version = version_enum::k2_1_0,
+            .runs = {
+                {
+                    .tool = {
+                        .driver = {
+                            .name="ESLint",
+                            .informationUri="https://eslint.org",
+                            .rules = {
+                                {
+                                    .id = "no-unused-vars",
+                                    .shortDescription = {
+                                        .text = "disallow unused variables",
+                                    },
+                                    .helpUri = "https://eslint.org/docs/rules/no-unused-vars",
+                                    .properties = {
+                                        {"category", "Variables"},
+                                    },
+                                },
+                            },
+                        },
+                    },
+                    .artifacts = {
+                        {
+                            .location = {
+                                .uri = "file:///C:/dev/sarif/sarif-tutorials/samples/Introduction/simple-example.js",
+                            },
+                        },
+                    },
+                    .results = {
+                        {
+                            .level = level_enum::kError,
+                            .message = {
+                                .text = "'x' is assigned a value but never used.",
+                            },
+                            .locations = {
+                                {
+                                    .physicalLocation = {
+                                        .artifactLocation = {
+                                            .uri = "file:///C:/dev/sarif/sarif-tutorials/samples/Introduction/simple-example.js",
+                                            .index = 0,
+                                        },
+                                        .region = {
+                                            .startLine = 1,
+                                            .startColumn = 5,
+                                        },
+                                    },
+                                },
+                            },
+                            .ruleId = "no-unused-vars",
+                            .ruleIndex = 0,
+                        },
+                    },
+                },
+            },
+        };
+
+        nlohmann::json root_json;
+        to_json(root_json, root);
+
+        root_struct deser;
+        from_json(root_json, deser);
+
+        nlohmann::json deser_json;
+        to_json(deser_json, deser);
+
+        CHECK(root_json == deser_json);
+    }
+}