package chart import ( "testing" assert "github.com/blendlabs/go-assert" "github.com/wcharczuk/go-chart/sequence" ) func TestConcatSeries(t *testing.T) { assert := assert.New(t) s1 := ContinuousSeries{ XValues: sequence.Values(1.0, 10.0), YValues: sequence.Values(1.0, 10.0), } s2 := ContinuousSeries{ XValues: sequence.Values(11, 20.0), YValues: sequence.Values(10.0, 1.0), } s3 := ContinuousSeries{ XValues: sequence.Values(21, 30.0), YValues: sequence.Values(1.0, 10.0), } cs := ConcatSeries([]Series{s1, s2, s3}) assert.Equal(30, cs.Len()) x0, y0 := cs.GetValue(0) assert.Equal(1.0, x0) assert.Equal(1.0, y0) xm, ym := cs.GetValue(19) assert.Equal(20.0, xm) assert.Equal(1.0, ym) xn, yn := cs.GetValue(29) assert.Equal(30.0, xn) assert.Equal(10.0, yn) }