SubSetOf

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

SubSetOf operator compares the contents of an array or a slice (or a pointer on array/slice) ignoring duplicates and 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, 1}, td.SubSetOf(1, 2))    // succeeds
td.Cmp(t, []int{1, 1, 2}, td.SubSetOf(1, 3)) // fails, 2 is an extra item

// works with slices/arrays of any type
td.Cmp(t, personSlice, td.SubSetOf(
  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{2, 1}
td.Cmp(t, []int{1, 1}, td.SubSetOf(td.Flatten(expected))) // succeeds
// = td.Cmp(t, []int{1, 1}, td.SubSetOf(2, 1))

exp1 := []int{2, 1}
exp2 := []int{5, 8}
td.Cmp(t, []int{1, 5, 1, 3, 3},
  td.SubSetOf(td.Flatten(exp1), 3, td.Flatten(exp2))) // succeeds
// = td.Cmp(t, []int{1, 5, 1, 3, 3}, td.SubSetOf(2, 1, 3, 5, 8))

See also SubSetOf godoc.

Example

Base example

CmpSubSetOf shortcut

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

CmpSubSetOf is a shortcut for:

td.Cmp(t, got, td.SubSetOf(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 CmpSubSetOf godoc.

Example

Base example

T.SubSetOf shortcut

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

SubSetOf is a shortcut for:

t.Cmp(got, td.SubSetOf(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.SubSetOf godoc.

Example

Base example