tests: python module should install files correctly

- default to python site-packages
- subdir to site-packages/subdir
- arbitrary install_dir

(cherry picked from commit 1f46b4ce64)

test cases/python/2 extmodule/blaster.py.in

@@ -1,6 +1,6 @@
 #!/usr/bin/env python3
 
-import tachyon
+import @tachyon_module@ as tachyon
 
 result = tachyon.phaserize('shoot')
 

test cases/python/2 extmodule/ext/meson.build

@@ -1,6 +1,10 @@
 pylib = py.extension_module('tachyon',
   'tachyon_module.c',
   dependencies : py_dep,
+  c_args: '-DMESON_MODULENAME="tachyon"',
+  install: true,
 )
 
+subdir('nested')
+subdir('wrongdir')
 pypathdir = meson.current_build_dir()

test cases/python/2 extmodule/ext/nested/meson.build

@@ -0,0 +1,16 @@
+py.extension_module('tachyon',
+  '../tachyon_module.c',
+  dependencies : py_dep,
+  c_args: '-DMESON_MODULENAME="nested.tachyon"',
+  install: true,
+  subdir: 'nested'
+)
+py.install_sources(
+  configure_file(
+    input: '../../blaster.py.in',
+    output: 'blaster.py',
+    configuration: {'tachyon_module': 'nested.tachyon'}
+  ),
+  pure: false,
+  subdir: 'nested',
+)

test cases/python/2 extmodule/ext/tachyon_module.c

@@ -38,7 +38,7 @@ static PyMethodDef TachyonMethods[] = {
 
 static struct PyModuleDef tachyonmodule = {
    PyModuleDef_HEAD_INIT,
-   "tachyon",
+   MESON_MODULENAME,
    NULL,
    -1,
    TachyonMethods

test cases/python/2 extmodule/ext/wrongdir/meson.build

@@ -0,0 +1,7 @@
+py.extension_module('tachyon',
+  '../tachyon_module.c',
+  dependencies : py_dep,
+  c_args: '-DMESON_MODULENAME="tachyon"',
+  install: true,
+  install_dir: get_option('libdir')
+)

test cases/python/2 extmodule/meson.build

@@ -18,11 +18,19 @@ endif
 
 subdir('ext')
 
+blaster = configure_file(
+  input: 'blaster.py.in',
+  output: 'blaster.py',
+  configuration: {'tachyon_module': 'tachyon'}
+)
+
 test('extmod',
   py,
-  args : files('blaster.py'),
+  args : blaster,
   env : ['PYTHONPATH=' + pypathdir])
 
+py.install_sources(blaster, pure: false)
+py.install_sources(blaster, subdir: 'pure')
 
 py3_pkg_dep = dependency('python3', method: 'pkg-config', required : false)
 if py3_pkg_dep.found()

test cases/python/2 extmodule/test.json

@@ -0,0 +1,13 @@
+{
+  "installed": [
+    { "type": "python_file", "file": "usr/@PYTHON_PLATLIB@/blaster.py" },
+    { "type": "python_lib",  "file": "usr/@PYTHON_PLATLIB@/tachyon" },
+    { "type": "py_implib",   "file": "usr/@PYTHON_PLATLIB@/tachyon" },
+    { "type": "python_file", "file": "usr/@PYTHON_PURELIB@/pure/blaster.py" },
+    { "type": "python_file", "file": "usr/@PYTHON_PLATLIB@/nested/blaster.py" },
+    { "type": "python_lib",  "file": "usr/@PYTHON_PLATLIB@/nested/tachyon" },
+    { "type": "py_implib",   "file": "usr/@PYTHON_PLATLIB@/nested/tachyon" },
+    { "type": "python_lib",  "file": "usr/lib/tachyon" },
+    { "type": "py_implib",   "file": "usr/lib/tachyon" }
+  ]
+}