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|
package window
import (
"reflect"
"testing"
)
func TestRolling(t *testing.T) {
testCases := []struct {
elements []string
n int
expected [][]string
}{
{
elements: nil,
n: 0,
expected: nil,
},
{
elements: []string{},
n: 0,
expected: nil,
},
{
elements: []string{"bail", "early"},
n: -1,
expected: nil,
},
{
elements: []string{"foo", "bar", "baz"},
n: 0,
expected: nil,
},
{
elements: []string{"foo", "bar", "baz"},
n: 1,
expected: [][]string{
[]string{"foo"},
[]string{"bar"},
[]string{"baz"},
},
},
{
elements: []string{"foo", "bar", "baz"},
n: 1,
expected: [][]string{
[]string{"foo"},
[]string{"bar"},
[]string{"baz"},
},
},
{
elements: []string{"foo", "bar", "baz"},
n: 2,
expected: [][]string{
[]string{"foo", "bar"},
[]string{"bar", "baz"},
},
},
{
elements: []string{"foo", "bar", "baz"},
n: 3,
expected: [][]string{
[]string{"foo", "bar", "baz"},
},
},
{
elements: []string{"foo", "bar", "baz", "boo"},
n: 2,
expected: [][]string{
[]string{"foo", "bar"},
[]string{"bar", "baz"},
[]string{"baz", "boo"},
},
},
}
for i, testCase := range testCases {
actual := Rolling(testCase.elements, testCase.n)
if !reflect.DeepEqual(actual, testCase.expected) {
t.Errorf("[i=%v] Actual rolling window result did not match expected value\n\tExpected: %+v\n\t Actual: %+v", i, testCase.expected, actual)
}
}
}
|
