From 8bb8a746dcf683c7f34dbd862107461e4c7cd319 Mon Sep 17 00:00:00 2001
From: Trent Mick <trentm@gmail.com>
Date: Wed, 10 Feb 2016 22:31:53 -0800
Subject: [PATCH] only want TZ set for the tests that need it, not everything
 run via this Makefile

---
 Makefile         |  3 ---
 test/cli.test.js | 40 ++++++++++++++++++++++++++++------------
 2 files changed, 28 insertions(+), 15 deletions(-)

diff --git a/Makefile b/Makefile
index 0e52310..3c6ea9a 100644
--- a/Makefile
+++ b/Makefile
@@ -18,8 +18,6 @@ ifeq ($(shell uname -s),Darwin)
 endif
 NODEOPT ?= $(HOME)/opt
 
-# Run tests in a set timezone, so local time is predictable
-export TZ=Pacific/Honolulu
 
 #---- Files
 
@@ -28,7 +26,6 @@ JSSTYLE_FILES := $(shell find lib test tools examples -name "*.js") bin/bunyan
 NON_DTRACE_TEST_FILES := $(shell ls -1 test/*.test.js | grep -v dtrace | xargs)
 
 
-
 #---- Targets
 
 all $(NODEUNIT):
diff --git a/test/cli.test.js b/test/cli.test.js
index d056548..4a33060 100644
--- a/test/cli.test.js
+++ b/test/cli.test.js
@@ -20,17 +20,29 @@ var before = tap4nodeunit.before;
 var test = tap4nodeunit.test;
 
 
+// ---- globals
 
 var BUNYAN = path.resolve(__dirname, '../bin/bunyan');
 
-//child = exec('cat *.js bad_file | wc -l',
-//  function (error, stdout, stderr) {
-//    console.log('stdout: ' + stdout);
-//    console.log('stderr: ' + stderr);
-//    if (error !== null) {
-//      console.log('exec error: ' + error);
-//    }
-//});
+
+// ---- support stuff
+
+/**
+ * Copies over all keys in `from` to `to`, or
+ * to a new object if `to` is not given.
+ */
+function objCopy(from, to) {
+    if (to === undefined) {
+        to = {};
+    }
+    for (var k in from) {
+        to[k] = from[k];
+    }
+    return to;
+}
+
+
+// ---- tests
 
 test('--version', function (t) {
     var version = require('../package.json').version;
@@ -87,9 +99,13 @@ test('cat simple.log', function (t) {
     );
 });
 
+// A stable 'TZ' for 'local' timezone output.
+tzEnv = objCopy(process.env);
+tzEnv.TZ = 'Pacific/Honolulu';
+
 test('time: simple.log local long', function (t) {
     exec(_('%s -o long -L %s/corpus/simple.log', BUNYAN, __dirname),
-             function (err, stdout, stderr) {
+            {env: tzEnv}, function (err, stdout, stderr) {
         t.ifError(err)
         t.equal(stdout,
             '[2012-02-08T12:56:52.856-10:00]  INFO: myservice/123 on example.com: '
@@ -99,7 +115,7 @@ test('time: simple.log local long', function (t) {
 });
 test('time: simple.log utc long', function (t) {
     exec(_('%s -o long --time utc %s/corpus/simple.log', BUNYAN, __dirname),
-             function (err, stdout, stderr) {
+            {env: tzEnv}, function (err, stdout, stderr) {
         t.ifError(err)
         t.equal(stdout,
             '[2012-02-08T22:56:52.856Z]  INFO: myservice/123 on example.com: '
@@ -109,7 +125,7 @@ test('time: simple.log utc long', function (t) {
 });
 test('time: simple.log local short', function (t) {
     exec(_('%s -o short -L %s/corpus/simple.log', BUNYAN, __dirname),
-             function (err, stdout, stderr) {
+            {env: tzEnv}, function (err, stdout, stderr) {
         t.ifError(err)
         t.equal(stdout,
             '12:56:52.856  INFO myservice: '
@@ -119,7 +135,7 @@ test('time: simple.log local short', function (t) {
 });
 test('time: simple.log utc short', function (t) {
     exec(_('%s -o short %s/corpus/simple.log', BUNYAN, __dirname),
-             function (err, stdout, stderr) {
+            {env: tzEnv}, function (err, stdout, stderr) {
         t.ifError(err)
         t.equal(stdout,
             '22:56:52.856Z  INFO myservice: '