[devhelp] meson: build unit tests

[Sébastien Wilmet <swilmet src gnome org>]

commit cb07ce201fcd08448895e51f66fd56e114941075
Author: Sébastien Wilmet <swilmet gnome org>
Date:   Sun Mar 11 11:31:00 2018 +0100

    meson: build unit tests

 devhelp/meson.build    |   23 ++++++++++++++++-------
 meson.build            |    1 +
 unit-tests/meson.build |   15 +++++++++++++++
 3 files changed, 32 insertions(+), 7 deletions(-)
---
diff --git a/devhelp/meson.build b/devhelp/meson.build
index 5c3839d..6b8c1d9 100644
--- a/devhelp/meson.build
+++ b/devhelp/meson.build
@@ -48,15 +48,24 @@ libdevhelp_enums = GNOME.mkenums_simple('dh-enum-types',
                                         sources : libdevhelp_public_headers,
                                         install_header : true,
                                         install_dir : install_headers_fulldir)
+libdevhelp_enum_header = libdevhelp_enums[1]
+
+libdevhelp_static = static_library('devhelp-static',
+                                   [libdevhelp_public_c_files,
+                                    libdevhelp_private_c_files,
+                                    libdevhelp_enums],
+                                   include_directories : [CONFIG_H_INCLUDE_DIR,
+                                                          ROOT_INCLUDE_DIR],
+                                   dependencies : DEVHELP_DEPS)
+
+# For unit tests, to be able to test private functions.
+LIBDEVHELP_STATIC_DEP = declare_dependency(sources : libdevhelp_enum_header,
+                                           link_with : libdevhelp_static,
+                                           include_directories : [ROOT_INCLUDE_DIR],
+                                           dependencies : DEVHELP_DEPS)
 
 library('devhelp-@0@'.format(DEVHELP_API_VERSION),
-        [libdevhelp_public_headers,
-         libdevhelp_public_c_files,
-         libdevhelp_private_headers,
-         libdevhelp_private_c_files,
-         libdevhelp_enums],
-        dependencies : DEVHELP_DEPS,
-        include_directories : [CONFIG_H_INCLUDE_DIR, ROOT_INCLUDE_DIR],
+        link_with : libdevhelp_static,
         install : true)
 
 install_headers(libdevhelp_public_headers,
diff --git a/meson.build b/meson.build
index b9b420c..4c0ff0c 100644
--- a/meson.build
+++ b/meson.build
@@ -99,3 +99,4 @@ add_global_arguments(supported_warning_cflags, language : 'c')
 ##### end CFLAGS
 
 subdir('devhelp')
+subdir('unit-tests')
diff --git a/unit-tests/meson.build b/unit-tests/meson.build
new file mode 100644
index 0000000..debf7d2
--- /dev/null
+++ b/unit-tests/meson.build
@@ -0,0 +1,15 @@
+unit_tests = [
+        'test-completion',
+        'test-link',
+        'test-search-context',
+        'test-util'
+]
+
+foreach unit_test : unit_tests
+        exe = executable(unit_test,
+                         unit_test + '.c',
+                         include_directories : ROOT_INCLUDE_DIR,
+                         dependencies : [DEVHELP_DEPS, LIBDEVHELP_STATIC_DEP])
+
+        test(unit_test, exe)
+endforeach