Add code coverage measurement for tests

.travis.yml

@@ -1,9 +1,24 @@
 sudo: false
-
 language: go
 
+before_install:
+  - go get github.com/mattn/goveralls
+  - go get golang.org/x/tools/cmd/cover
+  - go get github.com/modocache/gover
+
+env:
+  global:
+    secure: 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
+
+script:
+  - go test -coverprofile=crypto.coverprofile ./crypto
+  - go test -coverprofile=ed25519.coverprofile ./crypto/ed25519/edwards25519
+  - go test -coverprofile=extra25519.coverprofile ./crypto/ed25519/extra25519
+  - go test -coverprofile=vrf.coverprofile ./crypto/vrf
+  - go test -coverprofile=merkletree.coverprofile ./merkletree
+  - go test -coverprofile=utils.coverprofile ./utils
+  - $HOME/gopath/bin/gover
+  - $HOME/gopath/bin/goveralls -coverprofile=gover.coverprofile -service travis-ci
+
 notifications:
-  # Email notifications are disabled to not annoy anybody.
-  # See http://about.travis-ci.org/docs/user/build-configuration/ to learn more
-  # about configuring notification recipients and more.
   email: false

README.md

@@ -1,6 +1,7 @@
 # CONIKS Go Library
 
 [![Build Status](https://travis-ci.org/coniks-sys/coniks-go.svg?branch=master)](https://travis-ci.org/coniks-sys/coniks-go)
+[![Coverage Status](https://coveralls.io/repos/github/coniks-sys/coniks-go/badge.svg?branch=master)](https://coveralls.io/github/coniks-sys/coniks-go)
 
 http://coniks.org