project_tests: Add a "shared_lib" type

This allows fixing tests that produce .dylib's on macOS and .so's on elf
Unices.

docs/markdown/Contributing.md

@@ -190,6 +190,7 @@ Exanple `test.json`:
   "installed": [
     { "type": "exe", "file": "usr/bin/testexe" },
     { "type": "pdb", "file": "usr/bin/testexe" },
+    { "type": "shared_lib", "file": "usr/lib/z" },
   ],
   "matrix": {
     "options": {
@@ -233,14 +234,15 @@ actually installed file.
 The `type` entry specifies how the `file` path should be interpreted based on the
 current platform. The following values are currently supported:
 
-| `type`        | Description                                                                      |
-| :-----------: | -------------------------------------------------------------------------------- |
-| `file`        | No postprocessing, just use the provided path                                    |
-| `exe`         | For executables. On Windows the `.exe` suffix is added to the path in `file`     |
-| `pdb`         | For Windows PDB files. PDB entries are ignored on non Windows platforms          |
-| `implib`      | For Windows import libraries. These entries are ignored on non Windows platforms |
-| `implibempty` | Like `implib`, but no symbols are exported in the library                        |
-| `expr`        | `file` is an expression. This type should be avoided and removed if possible     |
+| `type`        | Description                                                                                             |
+| :-----------: | ------------------------------------------------------------------------------------------------------- |
+| `file`        | No postprocessing, just use the provided path                                                           |
+| `exe`         | For executables. On Windows the `.exe` suffix is added to the path in `file`                            |
+| `shared_lib`  | For shared libraries, always written as `name`. The appropriate suffix and prefix are added by platform |
+| `pdb`         | For Windows PDB files. PDB entries are ignored on non Windows platforms                                 |
+| `implib`      | For Windows import libraries. These entries are ignored on non Windows platforms                        |
+| `implibempty` | Like `implib`, but no symbols are exported in the library                                               |
+| `expr`        | `file` is an expression. This type should be avoided and removed if possible                            |
 
 Except for the `file` and `expr` types, all paths should be provided *without* a suffix.
 

run_project_tests.py

@@ -114,6 +114,15 @@ class InstalledFile:
         # Handle the different types
         if self.typ == 'file':
             return p
+        elif self.typ == 'shared_lib':
+            if env.machines.host.is_windows() or env.machines.host.is_cygwin():
+                return p.with_suffix('.dll')
+
+            p = p.with_name('lib{}'.format(p.name))
+            if env.machines.host.is_darwin():
+                return p.with_suffix('.dylib')
+            else:
+                return p.with_suffix('.so')
         elif self.typ == 'exe':
             if env.machines.host.is_windows() or env.machines.host.is_cygwin():
                 return p.with_suffix('.exe')

test cases/d/3 shared library/test.json

@@ -1,9 +1,9 @@
 {
   "installed": [
     {"type": "exe", "file": "usr/bin/app_d"},
-    {"type": "file", "platform": "msvc", "file": "usr/bin/stuff.dll"},
+    {"type": "shared_lib", "platform": "msvc", "file": "usr/bin/stuff"},
+    {"type": "shared_lib", "platform": "gcc", "file": "usr/lib/stuff"},
     {"type": "file", "platform": "msvc", "file": "usr/lib/stuff.lib"},
-    {"type": "file", "platform": "gcc", "file": "usr/lib/libstuff.so"},
     {"type": "file", "file": "usr/lib/pkgconfig/test.pc"}
   ]
 }

test cases/d/5 mixed/test.json

@@ -3,8 +3,8 @@
     {"type": "exe", "file": "usr/bin/appdc_d"},
     {"type": "exe", "file": "usr/bin/appdc_s"},
     {"type": "file", "file": "usr/lib/libstuff.a"},
-    {"type": "file", "platform": "gcc", "file": "usr/lib/libstuff.so"},
-    {"type": "file", "platform": "msvc", "file": "usr/bin/stuff.dll"},
+    {"type": "shared_lib", "platform": "gcc", "file": "usr/lib/stuff"},
+    {"type": "shared_lib", "platform": "msvc",  "file": "usr/bin/stuff"},
     {"type": "pdb", "file": "usr/bin/stuff"},
     {"type": "file", "platform": "msvc", "file": "usr/lib/stuff.lib"}
   ]