updates

sequence/linear.go

@@ -24,7 +24,7 @@ type Linear struct {
 
 // Len returns the number of elements in the sequence.
 func (lg Linear) Len() int {
-	return int((lg.limit - lg.offset) / lg.step)
+	return (int((lg.limit - lg.offset) / lg.step)) + 1
 }
 
 // GetValue returns the value at a given index.

sequence/linear_test.go

@@ -0,0 +1,24 @@
+package sequence
+
+import (
+	"testing"
+
+	assert "github.com/blendlabs/go-assert"
+)
+
+func TestValues(t *testing.T) {
+	assert := assert.New(t)
+
+	values := Values(1, 100)
+	assert.Len(values, 100)
+	assert.Equal(1, values[0])
+	assert.Equal(100, values[99])
+}
+
+func TestValueWithStep(t *testing.T) {
+	assert := assert.New(t)
+
+	values := ValuesWithStep(0, 100, 5)
+	assert.Equal(100, values[20])
+	assert.Len(values, 21)
+}