py-zopfli: update to 0.1.6

- enable tests
- install files in post-destroot

python/py-zopfli/Portfile

@@ -4,7 +4,8 @@ PortSystem          1.0
 PortGroup           python 1.0
 
 name                py-zopfli
-version             0.1.4
+version             0.1.6
+revision            0
 platforms           darwin
 license             Apache-2
 maintainers         nomaintainer
@@ -19,15 +20,29 @@ use_zip             yes
 
 distname            zopfli-${version}
 
-checksums           rmd160  63545b71612e385da2cb018e81b281d89e129c10 \
-                    sha256  95cdbadb8732ef0881aa310079e324c22a800d59ddd44456a1cddb1d42744b62 \
-                    size    75793
+checksums           rmd160  b4bd0fc40bd6d7ee223c5c8b956fba2f3a138301 \
+                    sha256  ed2293c11c2685bbd70bad0103285279406a77622e06de794d59c2180fecaa6a \
+                    size    75549
 
 python.versions     27 36 37
 
 if {${name} ne ${subport}} {
     depends_build-append \
                         port:py${python.version}-setuptools
 
+    pre-test {
+        test.env    PYTHONPATH=[glob -nocomplain ${worksrcpath}/build/lib*]
+    }
+    test.run        yes
+    test.cmd        ${python.bin} tests/tests.py
+    test.target
+
+    post-destroot {
+        set docdir ${prefix}/share/doc/${subport}
+        xinstall -d ${destroot}${docdir}
+        xinstall -m 0644 -W ${worksrcpath} README.rst COPYING \
+            ${destroot}${docdir}
+    }
+
     livecheck.type      none
 }