fixing tests

bar_chart_test.go

@@ -242,7 +242,7 @@ func TestBarChartGetAxesTicks(t *testing.T) {
 
 	bc.YAxis.Style.Show = true
 	ticks = bc.getAxesTicks(r, yr, yf)
-	assert.Len(ticks, 2)
+	assert.Len(2, ticks)
 }
 
 func TestBarChartCalculateEffectiveBarSpacing(t *testing.T) {

grid_line_test.go

@@ -17,7 +17,7 @@ func TestGenerateGridLines(t *testing.T) {
 	}
 
 	gl := GenerateGridLines(ticks, Style{}, Style{})
-	assert.Len(gl, 2)
+	assert.Len(2, gl)
 
 	assert.Equal(2.0, gl[0].Value)
 	assert.Equal(3.0, gl[1].Value)

market_hours_range_test.go

@@ -67,7 +67,7 @@ func TestMarketHoursRangeGetTicks(t *testing.T) {
 
 	ticks := ra.GetTicks(r, defaults, TimeValueFormatter)
 	assert.NotEmpty(ticks)
-	assert.Len(ticks, 5)
+	assert.Len(5, ticks)
 	assert.NotEqual(util.Time.ToFloat64(ra.Min), ticks[0].Value)
 	assert.NotEmpty(ticks[0].Label)
 }

matrix/regression_test.go

@@ -14,7 +14,7 @@ func TestPoly(t *testing.T) {
 
 	c, err := Poly(xGiven, yGiven, degree)
 	assert.Nil(err)
-	assert.Len(c, 3)
+	assert.Len(3, c)
 
 	assert.InDelta(c[0], 0.999999999, DefaultEpsilon)
 	assert.InDelta(c[1], 2, DefaultEpsilon)

seq/buffer_test.go

@@ -132,7 +132,7 @@ func TestBufferArray(t *testing.T) {
 	buffer.Enqueue(5)
 
 	contents := buffer.Array()
-	assert.Len(contents, 5)
+	assert.Len(5, contents)
 	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(values, 100)
+	assert.Len(100, values)
 	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(values, 21)
+	assert.Len(21, values)
 }
 
 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(values, 100)
+	assert.Len(100, values)
 	assert.Equal(1.0, values[0])
 	assert.Equal(100, values[99])
 }

seq/random.go

@@ -11,7 +11,7 @@ func RandomValues(count int) []float64 {
 	return Seq{NewRandom().WithLen(count)}.Array()
 }
 
-// RandomValuesWithAverage returns an array of random values with a given average.
+// RandomValuesWithMax returns an array of random values with a given average.
 func RandomValuesWithMax(count int, max float64) []float64 {
 	return Seq{NewRandom().WithMax(max).WithLen(count)}.Array()
 }

seq/random_test.go

@@ -15,6 +15,6 @@ func TestRandomRegression(t *testing.T) {
 
 	randomSequence := New(randomProvider)
 	randomValues := randomSequence.Array()
-	assert.Len(randomValues, 4096)
+	assert.Len(4096, randomValues)
 	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(normalized, 5)
+	assert.Len(5, normalized)
 	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(mh, 8)
+	assert.Len(8, mh)
 	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(mh, 4)
+	assert.Len(4, mh)
 	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(seq, 24)
+	assert.Len(24, seq)
 	assert.Equal(2016, end.Year())
 	assert.Equal(07, int(end.Month()))
 	assert.Equal(02, end.Day())
@@ -73,7 +73,8 @@ func TestSequenceHoursFill(t *testing.T) {
 	}
 
 	filledTimes, filledValues := Time.HoursFilled(xdata, ydata)
-	assert.Len(filledTimes, util.Date.DiffHours(Time.Start(xdata), Time.End(xdata))+1)
+	expected := util.Date.DiffHours(Time.Start(xdata), Time.End(xdata)) + 1
+	assert.Len(expected, filledTimes)
 	assert.Equal(len(filledValues), len(filledTimes))
 
 	assert.NotZero(filledValues[0])

text_test.go

@@ -18,7 +18,7 @@ func TestTextWrapWord(t *testing.T) {
 
 	output := Text.WrapFitWord(r, "this is a test string", 100, basicTextStyle)
 	assert.NotEmpty(output)
-	assert.Len(output, 3)
+	assert.Len(3, output)
 
 	for _, line := range output {
 		basicTextStyle.WriteToRenderer(r)
@@ -30,16 +30,16 @@ func TestTextWrapWord(t *testing.T) {
 	assert.Equal("string", output[2])
 
 	output = Text.WrapFitWord(r, "foo", 100, basicTextStyle)
-	assert.Len(output, 1)
+	assert.Len(1, output)
 	assert.Equal("foo", output[0])
 
 	// test that it handles newlines.
 	output = Text.WrapFitWord(r, "this\nis\na\ntest\nstring", 100, basicTextStyle)
-	assert.Len(output, 5)
+	assert.Len(5, output)
 
 	// test that it handles newlines and long lines.
 	output = Text.WrapFitWord(r, "this\nis\na\ntest\nstring that is very long", 100, basicTextStyle)
-	assert.Len(output, 8)
+	assert.Len(8, output)
 }
 
 func TestTextWrapRune(t *testing.T) {
@@ -54,7 +54,7 @@ func TestTextWrapRune(t *testing.T) {
 
 	output := Text.WrapFitRune(r, "this is a test string", 150, basicTextStyle)
 	assert.NotEmpty(output)
-	assert.Len(output, 2)
+	assert.Len(2, output)
 	assert.Equal("this is a t", output[0])
 	assert.Equal("est string", output[1])
 }

tick_test.go

@@ -26,7 +26,7 @@ func TestGenerateContinuousTicks(t *testing.T) {
 
 	ticks := GenerateContinuousTicks(r, ra, false, Style{}, vf)
 	assert.NotEmpty(ticks)
-	assert.Len(ticks, 11)
+	assert.Len(11, ticks)
 	assert.Equal(0.0, ticks[0].Value)
 	assert.Equal(10, ticks[len(ticks)-1].Value)
 }
@@ -52,7 +52,7 @@ func TestGenerateContinuousTicksDescending(t *testing.T) {
 
 	ticks := GenerateContinuousTicks(r, ra, false, Style{}, vf)
 	assert.NotEmpty(ticks)
-	assert.Len(ticks, 11)
+	assert.Len(11, ticks)
 	assert.Equal(10.0, ticks[0].Value)
 	assert.Equal(9.0, ticks[1].Value)
 	assert.Equal(1.0, ticks[len(ticks)-2].Value)

util/math_test.go

@@ -99,7 +99,7 @@ func TestNormalize(t *testing.T) {
 
 	values := []float64{10, 9, 8, 7, 6}
 	normalized := Math.Normalize(values...)
-	assert.Len(normalized, 5)
+	assert.Len(5, normalized)
 	assert.Equal(0.25, normalized[0])
 	assert.Equal(0.1499, normalized[4])
 }

value_test.go

@@ -20,7 +20,7 @@ func TestValuesValues(t *testing.T) {
 	}
 
 	values := Values(vs).Values()
-	assert.Len(values, 7)
+	assert.Len(7, values)
 	assert.Equal(10, values[0])
 	assert.Equal(9, values[1])
 	assert.Equal(8, values[2])
@@ -44,7 +44,7 @@ func TestValuesValuesNormalized(t *testing.T) {
 	}
 
 	values := Values(vs).ValuesNormalized()
-	assert.Len(values, 7)
+	assert.Len(7, values)
 	assert.Equal(0.2127, values[0])
 	assert.Equal(0.0425, values[6])
 }
@@ -63,7 +63,7 @@ func TestValuesNormalize(t *testing.T) {
 	}
 
 	values := Values(vs).Normalize()
-	assert.Len(values, 7)
+	assert.Len(7, values)
 	assert.Equal(0.2127, values[0].Value)
 	assert.Equal(0.0425, values[6].Value)
 }

xaxis_test.go

@@ -23,7 +23,7 @@ func TestXAxisGetTicks(t *testing.T) {
 	}
 	vf := FloatValueFormatter
 	ticks := xa.GetTicks(r, xr, styleDefaults, vf)
-	assert.Len(ticks, 16)
+	assert.Len(16, ticks)
 }
 
 func TestXAxisGetTicksWithUserDefaults(t *testing.T) {
@@ -45,7 +45,7 @@ func TestXAxisGetTicksWithUserDefaults(t *testing.T) {
 	}
 	vf := FloatValueFormatter
 	ticks := xa.GetTicks(r, xr, styleDefaults, vf)
-	assert.Len(ticks, 1)
+	assert.Len(1, ticks)
 }
 
 func TestXAxisMeasure(t *testing.T) {

yaxis_test.go

@@ -23,7 +23,7 @@ func TestYAxisGetTicks(t *testing.T) {
 	}
 	vf := FloatValueFormatter
 	ticks := ya.GetTicks(r, yr, styleDefaults, vf)
-	assert.Len(ticks, 32)
+	assert.Len(32, ticks)
 }
 
 func TestYAxisGetTicksWithUserDefaults(t *testing.T) {
@@ -45,7 +45,7 @@ func TestYAxisGetTicksWithUserDefaults(t *testing.T) {
 	}
 	vf := FloatValueFormatter
 	ticks := ya.GetTicks(r, yr, styleDefaults, vf)
-	assert.Len(ticks, 1)
+	assert.Len(1, ticks)
 }
 
 func TestYAxisMeasure(t *testing.T) {