Measure coverage of tests using codecov.io. (#123)

* Measure coverage of tests using codecov.io.

* Add codecov badge to README.md

* Recurse into packages when testing with coverage.

* Push testing kind of commands down to test.sh

.gitignore

@@ -4,3 +4,4 @@
 *.exe
 .*.swp
 core
+coverage.txt

.travis.yml

@@ -15,7 +15,7 @@ script:
   - golintlint=$(golint ./...) && if [ -n "$golintlint" ]; then printf 'golint found:\n%s\n' "$golintlint" && exit 1; fi
   - go tool vet -all .
   - gosimple ./...
-  - staticcheck ./...
-  - unused ./...
-  - go test -v ./...
-  - go test -v -race ./...
+  - ./test.sh
+
+after_success:
+  - bash <(curl -s https://codecov.io/bash)

README.md

@@ -1,4 +1,5 @@
 [![Build Status](https://travis-ci.org/google/pprof.svg?branch=master)](https://travis-ci.org/google/pprof)
+[![codecov](https://codecov.io/gh/google/pprof/graph/badge.svg)](https://codecov.io/gh/google/pprof)
 
 # Introduction
 

test.sh

@@ -0,0 +1,18 @@
+#!/usr/bin/env bash
+
+set -e
+echo "" > coverage.txt
+
+PKG=$(go list ./... | grep -v /vendor/)
+
+staticcheck $PKG
+unused $PKG
+go test -v $PKG
+
+for d in $PKG; do
+  go test -race -coverprofile=profile.out -covermode=atomic $d
+  if [ -f profile.out ]; then
+    cat profile.out >> coverage.txt
+    rm profile.out
+  fi
+done