SubBagOf

func SubBagOf(expectedItems ...interface{}) TestDeep

SubBagOf operator compares the contents of an array or a slice (or a pointer on array/slice) without taking care of the order of items.

During a match, each array/slice item should be matched by an expected item to succeed. But some expected items can be missing from the compared array/slice.

td.Cmp(t, []int{1}, td.SubBagOf(1, 1, 2))       // succeeds
td.Cmp(t, []int{1, 1, 1}, td.SubBagOf(1, 1, 2)) // fails, one 1 is an extra item

// works with slices/arrays of any type
td.Cmp(t, personSlice, td.SubBagOf(
  Person{Name: "Bob", Age: 32},
  Person{Name: "Alice", Age: 26},
))

To flatten a non-[]interface{} slice/array, use Flatten function and so avoid boring and inefficient copies:

expected := []int{1, 2, 1}
td.Cmp(t, []int{1}, td.SubBagOf(td.Flatten(expected))) // succeeds
// = td.Cmp(t, []int{1}, td.SubBagOf(1, 2, 1))

exp1 := []int{5, 1, 1}
exp2 := []int{8, 42, 3}
td.Cmp(t, []int{1, 42, 3},
  td.SubBagOf(td.Flatten(exp1), 3, td.Flatten(exp2))) // succeeds
// = td.Cmp(t, []int{1, 42, 3}, td.SubBagOf(5, 1, 1, 3, 8, 42, 3))

See also SubBagOf godoc.

Example

Base example

CmpSubBagOf shortcut

func CmpSubBagOf(t TestingT, got interface{}, expectedItems []interface{}, args ...interface{}) bool

CmpSubBagOf is a shortcut for:

td.Cmp(t, got, td.SubBagOf(expectedItems...), args...)

See above for details.

Returns true if the test is OK, false if it fails.

args… are optional and allow to name the test. This name is used in case of failure to qualify the test. If len(args) > 1 and the first item of args is a string and contains a ‘%’ rune then fmt.Fprintf is used to compose the name, else args are passed to fmt.Fprint. Do not forget it is the name of the test, not the reason of a potential failure.

See also CmpSubBagOf godoc.

Example

Base example

T.SubBagOf shortcut

func (t *T) SubBagOf(got interface{}, expectedItems []interface{}, args ...interface{}) bool

SubBagOf is a shortcut for:

t.Cmp(got, td.SubBagOf(expectedItems...), args...)

See above for details.

Returns true if the test is OK, false if it fails.

args… are optional and allow to name the test. This name is used in case of failure to qualify the test. If len(args) > 1 and the first item of args is a string and contains a ‘%’ rune then fmt.Fprintf is used to compose the name, else args are passed to fmt.Fprint. Do not forget it is the name of the test, not the reason of a potential failure.

See also T.SubBagOf godoc.

Example

Base example