add small sharness test to make sure output happens

License: MIT
Signed-off-by: Jeromy <jeromyj@gmail.com>

core/commands/sysdiag.go

@@ -6,6 +6,7 @@ import (
 	"runtime"
 
 	cmds "github.com/ipfs/go-ipfs/commands"
+	config "github.com/ipfs/go-ipfs/repo/config"
 
 	manet "github.com/ipfs/go-ipfs/Godeps/_workspace/src/github.com/jbenet/go-multiaddr-net"
 	psud "github.com/ipfs/go-ipfs/Godeps/_workspace/src/github.com/shirou/gopsutil/disk"
@@ -51,6 +52,8 @@ Prints out information about your computer to aid in easier debugging.
 			return
 		}
 
+		info["ipfs_version"] = config.CurrentVersionNumber
+		info["ipfs_git_sha"] = config.CurrentCommit
 		res.SetOutput(info)
 	},
 }

test/sharness/t0151-sysdiag.sh

+#!/bin/sh
+#
+# Copyright (c) 2015 Jeromy Johnson
+# MIT Licensed; see the LICENSE file in this repository.
+#
+
+test_description="test output of sysdiag command"
+
+. lib/test-lib.sh
+
+test_init_ipfs
+
+test_expect_success "ipfs diag sys succeeds" '
+	ipfs diag sys > output
+'
+
+test_expect_success "output contains some expected keys" '
+	grep "virt" output &&
+	grep "interface_addresses" output &&
+	grep "arch" output
+'
+
+test_expect_success "uname succeeds" '
+	UOUT=$(uname)
+'
+
+test_expect_success "output is similar to uname" '
+	case $UOUT in
+	Linux)
+		grep linux output > /dev/null
+		;;
+	Darwin)
+		grep darwin output > /dev/null
+		;;
+	FreeBSD)
+		grep freebsd output > /dev/null
+		;;
+	CYGWIN*)
+		grep windows output > /dev/null
+		;;
+	*)
+		test_fsh echo system check for $UOUT failed, unsupported system?
+		;;
+	esac
+'
+
+test_done