From da080c472fc415b0ce918f4dd4a1ab143bb1bca4 Mon Sep 17 00:00:00 2001
From: Philip Hands <phil@hands.com>
Date: Mon, 14 Mar 2016 15:36:16 +0100
Subject: rough attempt to grab the good cucumber bits from recent tails

---
 features/step_definitions/time_syncing.rb | 80 ++++++++++++++++++++++++++++---
 1 file changed, 73 insertions(+), 7 deletions(-)

(limited to 'features/step_definitions/time_syncing.rb')

diff --git a/features/step_definitions/time_syncing.rb b/features/step_definitions/time_syncing.rb
index 161a4162..319fb521 100644
--- a/features/step_definitions/time_syncing.rb
+++ b/features/step_definitions/time_syncing.rb
@@ -1,16 +1,44 @@
+# In some steps below we allow some slack when verifying that the date
+# was set appropriately because it may take time to send the `date`
+# command over the remote shell and get the answer back, parsing and
+# post-processing of the result, etc.
+def max_time_drift
+  10
+end
+
 When /^I set the system time to "([^"]+)"$/ do |time|
-  next if @skip_steps_while_restoring_background
-  @vm.execute("date -s '#{time}'")
+  $vm.execute_successfully("date -s '#{time}'")
+  new_time = DateTime.parse($vm.execute_successfully("date").stdout).to_time
+  expected_time_lower_bound = DateTime.parse(time).to_time
+  expected_time_upper_bound = expected_time_lower_bound + max_time_drift
+  assert(expected_time_lower_bound <= new_time &&
+         new_time <= expected_time_upper_bound,
+         "The guest's time was supposed to be set to " \
+         "'#{expected_time_lower_bound}' but is '#{new_time}'")
 end
 
-When /^I bump the system time with "([^"]+)"$/ do |timediff|
-  next if @skip_steps_while_restoring_background
-  @vm.execute("date -s 'now #{timediff}'")
+When /^I bump the (hardware clock's|system) time with "([^"]+)"$/ do |clock_type, timediff|
+  case clock_type
+  when "hardware clock's"
+    old_time = DateTime.parse($vm.execute_successfully("hwclock -r").stdout).to_time
+    $vm.execute_successfully("hwclock --set --date 'now #{timediff}'")
+    new_time = DateTime.parse($vm.execute_successfully("hwclock -r").stdout).to_time
+  when 'system'
+    old_time = DateTime.parse($vm.execute_successfully("date").stdout).to_time
+    $vm.execute_successfully("date -s 'now #{timediff}'")
+    new_time = DateTime.parse($vm.execute_successfully("date").stdout).to_time
+  end
+  expected_time_lower_bound = DateTime.parse(
+      cmd_helper(["date", "-d", "#{old_time} #{timediff}"])).to_time
+  expected_time_upper_bound = expected_time_lower_bound + max_time_drift
+  assert(expected_time_lower_bound <= new_time &&
+         new_time <= expected_time_upper_bound,
+         "The #{clock_type} time was supposed to be bumped to " \
+         "'#{expected_time_lower_bound}' but is '#{new_time}'")
 end
 
 Then /^Tails clock is less than (\d+) minutes incorrect$/ do |max_diff_mins|
-  next if @skip_steps_while_restoring_background
-  guest_time_str = @vm.execute("date --rfc-2822").stdout.chomp
+  guest_time_str = $vm.execute("date --rfc-2822").stdout.chomp
   guest_time = Time.rfc2822(guest_time_str)
   host_time = Time.now
   diff = (host_time - guest_time).abs
@@ -18,3 +46,41 @@ Then /^Tails clock is less than (\d+) minutes incorrect$/ do |max_diff_mins|
          "The guest's clock is off by #{diff} seconds (#{guest_time})")
   puts "Time was #{diff} seconds off"
 end
+
+Then /^the system clock is just past Tails' build date$/ do
+  system_time_str = $vm.execute_successfully('date').to_s
+  system_time = DateTime.parse(system_time_str).to_time
+  build_time_cmd = 'sed -n -e "1s/^.* - \([0-9]\+\)$/\1/p;q" ' +
+                   '/etc/amnesia/version'
+  build_time_str = $vm.execute_successfully(build_time_cmd).to_s
+  build_time = DateTime.parse(build_time_str).to_time
+  diff = system_time - build_time  # => in seconds
+  # Half an hour should be enough to boot Tails on any reasonable
+  # hardware and VM setup.
+  max_diff = 30*60
+  assert(diff > 0,
+         "The system time (#{system_time}) is before the Tails " +
+         "build date (#{build_time})")
+  assert(diff <= max_diff,
+         "The system time (#{system_time}) is more than #{max_diff} seconds " +
+         "past the build date (#{build_time})")
+end
+
+Then /^Tails' hardware clock is close to the host system's time$/ do
+  host_time = Time.now
+  hwclock_time_str = $vm.execute('hwclock -r').stdout.chomp
+  hwclock_time = DateTime.parse(hwclock_time_str).to_time
+  diff = (hwclock_time - host_time).abs
+  assert(diff <= max_time_drift)
+end
+
+Then /^the hardware clock is still off by "([^"]+)"$/ do |timediff|
+  hwclock = DateTime.parse($vm.execute_successfully("hwclock -r").stdout.chomp).to_time
+  expected_time_lower_bound = DateTime.parse(
+      cmd_helper(["date", "-d", "now #{timediff}"])).to_time - max_time_drift
+  expected_time_upper_bound = expected_time_lower_bound + max_time_drift
+  assert(expected_time_lower_bound <= hwclock &&
+         hwclock <= expected_time_upper_bound,
+         "The host's hwclock should be approximately " \
+         "'#{expected_time_lower_bound}' but is actually '#{hwclock}'")
+end
-- 
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