Extract build-components into a separate file.

Signed-off-by: David Horstmann <david.horstmann@arm.com>
Signed-off-by: Thomas Daubney <thomas.daubney@arm.com>
Signed-off-by: Minos Galanakis <minos.galanakis@arm.com>
diff --git a/tests/scripts/components-build-system.sh b/tests/scripts/components-build-system.sh
index b8f09f4..4e6dcba 100644
--- a/tests/scripts/components-build-system.sh
+++ b/tests/scripts/components-build-system.sh
@@ -9,4 +9,200 @@
 #### Build System Testing
 ################################################################
 
+component_test_make_shared () {
+    msg "build/test: make shared" # ~ 40s
+    make SHARED=1 all check
+    ldd programs/util/strerror | grep libmbedcrypto
+    programs/test/dlopen_demo.sh
+}
 
+component_test_cmake_shared () {
+    msg "build/test: cmake shared" # ~ 2min
+    cmake -DUSE_SHARED_MBEDTLS_LIBRARY=On .
+    make
+    ldd programs/util/strerror | grep libmbedcrypto
+    make test
+    programs/test/dlopen_demo.sh
+}
+
+support_test_cmake_out_of_source () {
+    distrib_id=""
+    distrib_ver=""
+    distrib_ver_minor=""
+    distrib_ver_major=""
+
+    # Attempt to parse lsb-release to find out distribution and version. If not
+    # found this should fail safe (test is supported).
+    if [[ -f /etc/lsb-release ]]; then
+
+        while read -r lsb_line; do
+            case "$lsb_line" in
+                "DISTRIB_ID"*) distrib_id=${lsb_line/#DISTRIB_ID=};;
+                "DISTRIB_RELEASE"*) distrib_ver=${lsb_line/#DISTRIB_RELEASE=};;
+            esac
+        done < /etc/lsb-release
+
+        distrib_ver_major="${distrib_ver%%.*}"
+        distrib_ver="${distrib_ver#*.}"
+        distrib_ver_minor="${distrib_ver%%.*}"
+    fi
+
+    # Running the out of source CMake test on Ubuntu 16.04 using more than one
+    # processor (as the CI does) can create a race condition whereby the build
+    # fails to see a generated file, despite that file actually having been
+    # generated. This problem appears to go away with 18.04 or newer, so make
+    # the out of source tests unsupported on Ubuntu 16.04.
+    [ "$distrib_id" != "Ubuntu" ] || [ "$distrib_ver_major" -gt 16 ]
+}
+
+component_test_cmake_out_of_source () {
+    # Remove existing generated files so that we use the ones cmake
+    # generates
+    make neat
+
+    msg "build: cmake 'out-of-source' build"
+    MBEDTLS_ROOT_DIR="$PWD"
+    mkdir "$OUT_OF_SOURCE_DIR"
+    cd "$OUT_OF_SOURCE_DIR"
+    # Note: Explicitly generate files as these are turned off in releases
+    cmake -D CMAKE_BUILD_TYPE:String=Check -D GEN_FILES=ON "$MBEDTLS_ROOT_DIR"
+    make
+
+    msg "test: cmake 'out-of-source' build"
+    make test
+    # Check that ssl-opt.sh can find the test programs.
+    # Also ensure that there are no error messages such as
+    # "No such file or directory", which would indicate that some required
+    # file is missing (ssl-opt.sh tolerates the absence of some files so
+    # may exit with status 0 but emit errors).
+    ./tests/ssl-opt.sh -f 'Default' >ssl-opt.out 2>ssl-opt.err
+    grep PASS ssl-opt.out
+    cat ssl-opt.err >&2
+    # If ssl-opt.err is non-empty, record an error and keep going.
+    [ ! -s ssl-opt.err ]
+    rm ssl-opt.out ssl-opt.err
+    cd "$MBEDTLS_ROOT_DIR"
+    rm -rf "$OUT_OF_SOURCE_DIR"
+}
+
+component_test_cmake_as_subdirectory () {
+    # Remove existing generated files so that we use the ones CMake
+    # generates
+    make neat
+
+    msg "build: cmake 'as-subdirectory' build"
+    cd programs/test/cmake_subproject
+    # Note: Explicitly generate files as these are turned off in releases
+    cmake -D GEN_FILES=ON .
+    make
+    ./cmake_subproject
+}
+
+support_test_cmake_as_subdirectory () {
+    support_test_cmake_out_of_source
+}
+
+component_test_cmake_as_package () {
+    # Remove existing generated files so that we use the ones CMake
+    # generates
+    make neat
+
+    msg "build: cmake 'as-package' build"
+    cd programs/test/cmake_package
+    cmake .
+    make
+    ./cmake_package
+}
+
+support_test_cmake_as_package () {
+    support_test_cmake_out_of_source
+}
+
+component_test_cmake_as_package_install () {
+    # Remove existing generated files so that we use the ones CMake
+    # generates
+    make neat
+
+    msg "build: cmake 'as-installed-package' build"
+    cd programs/test/cmake_package_install
+    cmake .
+    make
+    ./cmake_package_install
+}
+
+support_test_cmake_as_package_install () {
+    support_test_cmake_out_of_source
+}
+
+component_build_cmake_custom_config_file () {
+    # Make a copy of config file to use for the in-tree test
+    cp "$CONFIG_H" include/mbedtls_config_in_tree_copy.h
+
+    MBEDTLS_ROOT_DIR="$PWD"
+    mkdir "$OUT_OF_SOURCE_DIR"
+    cd "$OUT_OF_SOURCE_DIR"
+
+    # Build once to get the generated files (which need an intact config file)
+    cmake "$MBEDTLS_ROOT_DIR"
+    make
+
+    msg "build: cmake with -DMBEDTLS_CONFIG_FILE"
+    scripts/config.py -w full_config.h full
+    echo '#error "cmake -DMBEDTLS_CONFIG_FILE is not working."' > "$MBEDTLS_ROOT_DIR/$CONFIG_H"
+    cmake -DGEN_FILES=OFF -DMBEDTLS_CONFIG_FILE=full_config.h "$MBEDTLS_ROOT_DIR"
+    make
+
+    msg "build: cmake with -DMBEDTLS_CONFIG_FILE + -DMBEDTLS_USER_CONFIG_FILE"
+    # In the user config, disable one feature (for simplicity, pick a feature
+    # that nothing else depends on).
+    echo '#undef MBEDTLS_NIST_KW_C' >user_config.h
+
+    cmake -DGEN_FILES=OFF -DMBEDTLS_CONFIG_FILE=full_config.h -DMBEDTLS_USER_CONFIG_FILE=user_config.h "$MBEDTLS_ROOT_DIR"
+    make
+    not programs/test/query_compile_time_config MBEDTLS_NIST_KW_C
+
+    rm -f user_config.h full_config.h
+
+    cd "$MBEDTLS_ROOT_DIR"
+    rm -rf "$OUT_OF_SOURCE_DIR"
+
+    # Now repeat the test for an in-tree build:
+
+    # Restore config for the in-tree test
+    mv include/mbedtls_config_in_tree_copy.h "$CONFIG_H"
+
+    # Build once to get the generated files (which need an intact config)
+    cmake .
+    make
+
+    msg "build: cmake (in-tree) with -DMBEDTLS_CONFIG_FILE"
+    scripts/config.py -w full_config.h full
+    echo '#error "cmake -DMBEDTLS_CONFIG_FILE is not working."' > "$MBEDTLS_ROOT_DIR/$CONFIG_H"
+    cmake -DGEN_FILES=OFF -DMBEDTLS_CONFIG_FILE=full_config.h .
+    make
+
+    msg "build: cmake (in-tree) with -DMBEDTLS_CONFIG_FILE + -DMBEDTLS_USER_CONFIG_FILE"
+    # In the user config, disable one feature (for simplicity, pick a feature
+    # that nothing else depends on).
+    echo '#undef MBEDTLS_NIST_KW_C' >user_config.h
+
+    cmake -DGEN_FILES=OFF -DMBEDTLS_CONFIG_FILE=full_config.h -DMBEDTLS_USER_CONFIG_FILE=user_config.h .
+    make
+    not programs/test/query_compile_time_config MBEDTLS_NIST_KW_C
+
+    rm -f user_config.h full_config.h
+}
+
+support_build_cmake_custom_config_file () {
+    support_test_cmake_out_of_source
+}
+
+component_build_cmake_programs_no_testing () {
+    # Verify that the type of builds performed by oss-fuzz don't get accidentally broken
+    msg "build: cmake with -DENABLE_PROGRAMS=ON and -DENABLE_TESTING=OFF"
+    cmake -DENABLE_PROGRAMS=ON -DENABLE_TESTING=OFF .
+    make
+}
+support_build_cmake_programs_no_testing () {
+    support_test_cmake_out_of_source
+}