[libsoup/wip/smcv/installed-tests] Optionally install installed-tests

[Simon McVittie <smcv src gnome org>]

commit b56af7650bef2a15216a2bce12999f3c5e2a7bf1
Author: Simon McVittie <smcv debian org>
Date:   Wed Aug 28 11:40:07 2019 +0100

    Optionally install installed-tests
    
    This was supported in the old Autotools build system, but was lost
    in the move to Meson.
    
    Signed-off-by: Simon McVittie <smcv debian org>
    Fixes: https://gitlab.gnome.org/GNOME/libsoup/issues/163

 meson_options.txt          |  6 ++++
 tests/meson.build          | 78 ++++++++++++++++++++++++++++++++++++++++++----
 tests/template-tap.test.in |  4 +++
 3 files changed, 82 insertions(+), 6 deletions(-)
---
diff --git a/meson_options.txt b/meson_options.txt
index 4f14e378..12b1aae6 100644
--- a/meson_options.txt
+++ b/meson_options.txt
@@ -64,3 +64,9 @@ option('tests',
   value: true,
   description: 'Enable unit tests compilation'
 )
+
+option('installed_tests',
+  type: 'boolean',
+  value: false,
+  description: 'Install tests for as-installed testing'
+)
diff --git a/tests/meson.build b/tests/meson.build
index e6742b45..e755367b 100644
--- a/tests/meson.build
+++ b/tests/meson.build
@@ -1,16 +1,27 @@
 test_utils_name = 'test-utils'
+installed_tests_metadir = join_paths(get_option('datadir'), 'installed-tests', libsoup_api_name)
+installed_tests_execdir = join_paths(get_option('libexecdir'), 'installed-tests', libsoup_api_name)
+installed_tests_enabled = get_option('installed_tests')
+installed_tests_template_tap = files('template-tap.test.in')
+abs_installed_tests_execdir = join_paths(prefix, installed_tests_execdir)
 
 if cc.get_id() == 'msvc'
   test_utils = static_library(test_utils_name, test_utils_name + '.c',
     dependencies : libsoup_dep)
 else
   test_utils = library(test_utils_name, test_utils_name + '.c',
-    dependencies : libsoup_dep)
+    dependencies : libsoup_dep,
+    install : installed_tests_enabled,
+    install_dir : installed_tests_execdir,
+  )
 endif
 
 test_resources = gnome.compile_resources('soup-tests',
   'soup-tests.gresource.xml',
-  gresource_bundle : true)
+  gresource_bundle : true,
+  install : installed_tests_enabled,
+  install_dir : installed_tests_execdir,
+)
 
 # ['name', is_parallel, extra_deps]
 tests = [
@@ -50,6 +61,15 @@ if brotlidec_dep.found()
   tests += [
     ['brotli-decompressor', true, []],
   ]
+
+  if installed_tests_enabled
+    install_data(
+      'brotli-data/compressed.br',
+      'brotli-data/corrupt.br',
+      'brotli-data/uncompressed.txt',
+      install_dir : join_paths(installed_tests_execdir, 'brotli-data'),
+    )
+  endif
 endif
 
 if have_apache
@@ -63,7 +83,10 @@ if have_apache
 
   configure_file(output : 'httpd.conf',
     input : 'httpd.conf.in',
-    configuration : cdata)
+    configuration : cdata,
+    install : installed_tests_enabled,
+    install_dir : installed_tests_execdir,
+  )
 
   configure_file(input : 'htdigest',
     output : 'htdigest',
@@ -80,12 +103,26 @@ if have_apache
   configure_file(input : 'test-key.pem',
     output : 'test-key.pem',
     copy : true)
+
+  if installed_tests_enabled
+    install_data(
+      'index.txt',
+      'test-cert.pem',
+      'test-key.pem',
+      'htdigest',
+      'htpasswd',
+      install_dir : installed_tests_execdir,
+    )
+  endif
 endif
 
 if have_php
   configure_file(output : 'php.ini',
     input : 'php.ini.in',
-    configuration : cdata)
+    configuration : cdata,
+    install : installed_tests_enabled,
+    install_dir : installed_tests_execdir,
+  )
 endif
 
 if have_php_xmlrpc
@@ -99,6 +136,13 @@ if have_php_xmlrpc
   configure_file(input : 'xmlrpc-server.php',
     output : 'xmlrpc-server.php',
     copy : true)
+
+  if installed_tests_enabled
+    install_data(
+      'xmlrpc-server.php',
+      install_dir : installed_tests_execdir,
+    )
+  endif
 endif
 
 env = environment()
@@ -113,15 +157,37 @@ env.set('MALLOC_PERTURB_', '')
 
 foreach test: tests
   test_name = '@0@-test'.format(test[0])
+
+  if installed_tests_enabled
+    test_conf = configuration_data()
+    test_conf.set('installed_tests_dir', abs_installed_tests_execdir)
+    test_conf.set('program', test_name)
+    test_conf.set('env', '')
+    configure_file(
+      input : installed_tests_template_tap,
+      output : test_name + '.test',
+      install_dir : installed_tests_metadir,
+      configuration : test_conf,
+    )
+  endif
+
   test_deps = [ libsoup_dep ] + test[2]
   test_target = executable(test_name,
     sources : [ test_name + '.c', test_resources ],
     link_with : test_utils,
-    dependencies : test_deps)
+    dependencies : test_deps,
+    install : installed_tests_enabled,
+    install_dir : installed_tests_execdir,
+    install_rpath : abs_installed_tests_execdir,
+  )
   # Increase the timeout as on some architectures the tests could be slower
   # than the default 30 seconds.
   test(test_name, test_target, env : env, is_parallel : test[1], timeout : 60)
 endforeach
 
 executable('ntlm-test-helper', 'ntlm-test-helper.c',
-  dependencies : libsoup_dep)
+  dependencies : libsoup_dep,
+  install : installed_tests_enabled,
+  install_dir : installed_tests_execdir,
+  install_rpath : abs_installed_tests_execdir,
+)
diff --git a/tests/template-tap.test.in b/tests/template-tap.test.in
new file mode 100644
index 00000000..30cd1668
--- /dev/null
+++ b/tests/template-tap.test.in
@@ -0,0 +1,4 @@
+[Test]
+Type=session
+Exec=@env@@installed_tests_dir@/@program@ --tap
+Output=TAP