Add more libs

Create new folder structure

Author: martin4861

test/small_world/.bazelrc

@@ -8,6 +8,9 @@ common --@rules_swiftnav//cc:enable_bzlmod=true
 build:coverage_x86_64_linux --platforms=@rules_swiftnav//platforms:x86_64_linux_llvm20
 
 build:coverage_aarch64_darwin --platforms=@rules_swiftnav//platforms:aarch64_darwin_llvm20
+build:coverage_aarch64_darwin --action_env=BAZEL_USE_LLVM_NATIVE_COVERAGE=0
+
+
 
 # # Overrides our custom toolchain and uses the system
 # build:system --noincompatible_enable_cc_toolchain_resolution
@@ -43,18 +46,47 @@ build:coverage_aarch64_darwin --platforms=@rules_swiftnav//platforms:aarch64_dar
 # test --spawn_strategy=local
 # test --strategy=TestRunner=local
 
-# 
+# coverage --spawn_strategy=local
+# coverage --strategy=TestRunner=local
+# coverage --action_env=COVERAGE_GCOV_PATH="/opt/homebrew/opt/llvm/bin/llvm-profdata" # not needed, part of clang20 toolchain!
+
+# next line does not seem to change anything
+# coverage --action_env=BAZEL_USE_LLVM_NATIVE_COVERAGE=1
 
+# same, same
+# coverage --action_env=GCOV_PREFIX_STRIP=10
 
+# next 4 lines are not possible with clang20!
+# coverage --cxxopt=-mllvm
+# coverage --copt=-mllvm
+# coverage --cxxopt=-system-headers-coverage
+# coverage --copt=-system-headers-coverage
 
 
-# bazel coverage --config=coverage_aarch64_darwin //src/base_math:base_math_test --subcommands
+# Mac:
+# https://github.com/bazelbuild/bazel/blob/1879fc9dbf9d1989c2f1a1e6d2ec61097fe62233/src/test/shell/bazel/bazel_coverage_cc_test_llvm.sh#L67 ? 
+# bazel coverage --config=coverage_aarch64_darwin //src/base_math:base_math_test --subcommands --experimental_generate_llvm_lcov --combined_report=lcov
 
+#common --action_env=BAZEL_LLVM_COV="external/rules_swiftnav+/cc/toolchains/llvm20/aarch64-darwin/wrappers/llvm-cov"
+#common --action_env=BAZEL_LLVM_PROFDATA="external/rules_swiftnav+/cc/toolchains/llvm20/aarch64-darwin/wrappers/llvm-profdata"
+#common --action_env=BAZEL_USE_LLVM_NATIVE_COVERAGE=1
+#common --repo_env=CC=${clang}
+#common --repo_env=GCOV=${llvm_profdata}
+#common --experimental_generate_llvm_lcov
 
-# on ubuntu! you do not need those options above (might be only for Mac)
+
+# on ubuntu!
 # 1.
 # bazel coverage --config=coverage_x86_64_linux //src/base_math:base_math_test --subcommands --experimental_generate_llvm_lcov --combined_report=lcov
 # 2.
-# /home/jenkins/.cache/bazel/_bazel_jenkins/5a7b992760bae9ecbea2fa12e457bcb7/execroot/_main/bazel-out/_coverage/_coverage_report.dat
+# cp "$(bazel info output_path)/_coverage/_coverage_report.dat" cov.dat
 # copy
 # 3. genhtml --output html cov.dat
+
+
+
+# bazel coverage --config=coverage_x86_64_linux //src/old_folder_structure:old_folder_structure_test --subcommands --experimental_generate_llvm_lcov --combined_report=lcov
+# cp "$(bazel info output_path)/_coverage/_coverage_report.dat" cov.dat
+# genhtml --output html cov.dat
+
+

test/small_world/src/base_math/base_math.hpp

@@ -1,3 +1,16 @@
-#pragma once
+#ifndef BASE_MATH_HPP
+#define BASE_MATH_HPP
 
 int add(int x, int y);
+
+struct Math {
+    static int sign(int x) {
+        if (x >= 0) {
+            return 1;
+        } else {
+            return -1;
+        }
+    }
+};
+
+#endif

test/small_world/src/base_math/base_math_test.cc

@@ -6,3 +6,7 @@ TEST(BaseMathTest, Add) {
   EXPECT_EQ(add(-1, 1), 0);
   EXPECT_EQ(add(-1, -1), -2);
 }
+
+TEST(BaseMathTest, SignPlus) {
+  EXPECT_EQ(Math::sign(10), 1);
+}

test/small_world/src/old_folder_structure/BUILD.bazel

@@ -0,0 +1,19 @@
+load("@rules_swiftnav//cc:defs.bzl", "UNIT", "swift_cc_library", "swift_cc_test")
+
+swift_cc_library(
+    name = "old_folder_structure",
+    srcs = ["src/old_folder_structure.cc"],
+    hdrs = ["include/old_folder_structure/old_folder_structure.hpp"],
+    includes = ["include"],
+    visibility = ["//visibility:public"],
+)
+
+swift_cc_test(
+    name = "old_folder_structure_test",
+    srcs = ["test/old_folder_structure_test.cc"],
+    type = UNIT,
+    deps = [
+        ":old_folder_structure",
+        "@googletest//:gtest_main",
+    ],
+)

test/small_world/src/old_folder_structure/include/old_folder_structure/old_folder_structure.hpp

@@ -0,0 +1,16 @@
+#ifndef OLD_FOLDER_STRUCTURE_HPP
+#define OLD_FOLDER_STRUCTURE_HPP
+
+int minus(int x, int y);
+
+struct Math {
+    static int inv_sign(int x) {
+        if (x >= 0) {
+            return -1;
+        } else {
+            return 1;
+        }
+    }
+};
+
+#endif

test/small_world/src/old_folder_structure/src/old_folder_structure.cc

@@ -0,0 +1,5 @@
+#include "old_folder_structure/old_folder_structure.hpp"
+
+int minus(int x, int y) {
+  return x - y;
+}

test/small_world/src/old_folder_structure/test/old_folder_structure_test.cc

@@ -0,0 +1,12 @@
+#include "old_folder_structure/old_folder_structure.hpp"
+#include "gtest/gtest.h"
+
+TEST(old_folder_structure, Minus) {
+  EXPECT_EQ(minus(1, 2), -1);
+  EXPECT_EQ(minus(-1, 1), -2);
+  EXPECT_EQ(minus(-1, -1), 0);
+}
+
+TEST(old_folder_structure, InvSignPlus) {
+  EXPECT_EQ(Math::inv_sign(10), -1);
+}