Add date argument to `log` commandlog-for-past-days--squashed

Adds an optional date argument to the `log` command that can be
specified just before the task alias.

Some examples from @skoppelmanCC:

    hcl log yesterday @documentation +2 Ran spellcheck
    hcl log 3 days ago @wireframes +3.5
    hcl log last friday @admin +1 filed timesheets

Commands#log:
Copy over the contents of `Commands#start` and replace `task.start` with
`task.add`. This allows us to log the time without actually starting a
timer (and thus having to subsequently stop that timer).

command_test.rb(#test_start):
Update expected method call arguments with `spent_at`. Now that we're
passing in `spent_at`, the expected arguments should include it.

command_test.rb(#test_log_failure):
Delete this test because I've rewritten the `Commands#log` method to no
longer use timers.

utility_test.rb: Add tests for `#get_date`

Fixes #83.

2 files changed, 8 insertions, 5 deletions

diff --git a/test/command_test.rb b/test/command_test.rb
index 8536286..94ff673 100644
--- a/test/command_test.rb
+++ b/test/command_test.rb
@@ -31,11 +31,6 @@ class CommandTest < HCl::TestCase
     assert_equal "taco.time: now\n", standard_output
   end
 
-  def test_log_failure
-    HCl::DayEntry.expects(:with_timer).returns(stub)
-    assert_raises(HCl::CommandError) { log "stuff" }
-  end
-
   def test_tasks
     FileUtils.rm_rf ENV['HCL_DIR']+"/cache"
     register_uri(:get, '/daily', {:day_entries=>[], :projects=> [{
diff --git a/test/utility_test.rb b/test/utility_test.rb
index b0fb09c..222d129 100644
--- a/test/utility_test.rb
+++ b/test/utility_test.rb
@@ -24,6 +24,14 @@ class UtilityTest < HCl::TestCase
     assert_equal 0.25, get_starting_time(%w[ @taco +.25 makin tacos ])
   end
 
+  def test_get_date_without_ident
+    assert_nil get_date(%w[ yesterday +2 no task ])
+  end
+
+  def test_get_date_with_ident
+    assert_equal Chronic.parse('2018-01-15'), get_date(%w[ january 15 2018 @taco +.30 makin tacos ])
+  end
+
   def test_time2float_decimal
     assert_equal 2.5, time2float("2.5")
   end