Fixed order of arguments to assert.Len in test files. (#93)

* Fixed order of arguments to assert.Len in test files.

* Added BaseValue funtionality to bar chart

seq/buffer_test.go

@@ -132,7 +132,7 @@ func TestBufferArray(t *testing.T) {
 	buffer.Enqueue(5)
 
 	contents := buffer.Array()
-	assert.Len(5, contents)
+	assert.Len(contents, 5)
 	assert.Equal(1, contents[0])
 	assert.Equal(2, contents[1])
 	assert.Equal(3, contents[2])

seq/linear_test.go

@@ -10,7 +10,7 @@ func TestRange(t *testing.T) {
 	assert := assert.New(t)
 
 	values := Range(1, 100)
-	assert.Len(100, values)
+	assert.Len(values, 100)
 	assert.Equal(1, values[0])
 	assert.Equal(100, values[99])
 }
@@ -20,7 +20,7 @@ func TestRangeWithStep(t *testing.T) {
 
 	values := RangeWithStep(0, 100, 5)
 	assert.Equal(100, values[20])
-	assert.Len(21, values)
+	assert.Len(values, 21)
 }
 
 func TestRangeReversed(t *testing.T) {
@@ -42,7 +42,7 @@ func TestValuesRegression(t *testing.T) {
 	assert.Equal(100, linearProvider.Len())
 
 	values := Seq{Provider: linearProvider}.Array()
-	assert.Len(100, values)
+	assert.Len(values, 100)
 	assert.Equal(1.0, values[0])
 	assert.Equal(100, values[99])
 }

seq/random_test.go

@@ -15,6 +15,6 @@ func TestRandomRegression(t *testing.T) {
 
 	randomSequence := New(randomProvider)
 	randomValues := randomSequence.Array()
-	assert.Len(4096, randomValues)
+	assert.Len(randomValues, 4096)
 	assert.InDelta(128, randomSequence.Average(), 10.0)
 }

seq/sequence_test.go

@@ -88,7 +88,7 @@ func TestSequenceNormalize(t *testing.T) {
 	normalized := Values(1, 2, 3, 4, 5).Normalize().Array()
 
 	assert.NotEmpty(normalized)
-	assert.Len(5, normalized)
+	assert.Len(normalized, 5)
 	assert.Equal(0, normalized[0])
 	assert.Equal(0.25, normalized[1])
 	assert.Equal(1, normalized[4])

seq/time_test.go

@@ -13,7 +13,7 @@ func TestTimeMarketHours(t *testing.T) {
 
 	today := time.Date(2016, 07, 01, 12, 0, 0, 0, util.Date.Eastern())
 	mh := Time.MarketHours(today, today, util.NYSEOpen(), util.NYSEClose(), util.Date.IsNYSEHoliday)
-	assert.Len(8, mh)
+	assert.Len(mh, 8)
 	assert.Equal(util.Date.Eastern(), mh[0].Location())
 }
 
@@ -21,7 +21,7 @@ func TestTimeMarketHourQuarters(t *testing.T) {
 	assert := assert.New(t)
 	today := time.Date(2016, 07, 01, 12, 0, 0, 0, util.Date.Eastern())
 	mh := Time.MarketHourQuarters(today, today, util.NYSEOpen(), util.NYSEClose(), util.Date.IsNYSEHoliday)
-	assert.Len(4, mh)
+	assert.Len(mh, 4)
 	assert.Equal(9, mh[0].Hour())
 	assert.Equal(30, mh[0].Minute())
 	assert.Equal(util.Date.Eastern(), mh[0].Location())
@@ -42,7 +42,7 @@ func TestTimeHours(t *testing.T) {
 	seq := Time.Hours(today, 24)
 
 	end := Time.End(seq)
-	assert.Len(24, seq)
+	assert.Len(seq, 24)
 	assert.Equal(2016, end.Year())
 	assert.Equal(07, int(end.Month()))
 	assert.Equal(02, end.Day())
@@ -74,7 +74,7 @@ func TestSequenceHoursFill(t *testing.T) {
 
 	filledTimes, filledValues := Time.HoursFilled(xdata, ydata)
 	expected := util.Date.DiffHours(Time.Start(xdata), Time.End(xdata)) + 1
-	assert.Len(expected, filledTimes)
+	assert.Len(filledTimes, expected)
 	assert.Equal(len(filledValues), len(filledTimes))
 
 	assert.NotZero(filledValues[0])