Function TestCompare

lib/protocol/vector_test.go:161–390

(t *testing.T)

}

func TestCompare(t *testing.T) {
	testcases := []struct {
		a, b Vector
		r    Ordering
	}{
		// Empty vectors are identical
		{Vector{}, Vector{}, Equal},
		{Vector{}, Vector{Counters: []Counter{{ID: 42, Value: 0}}}, Equal},
		{Vector{Counters: []Counter{{ID: 42, Value: 0}}}, Vector{}, Equal},

		// Zero is the implied value for a missing Counter
		{
			Vector{Counters: []Counter{{ID: 42, Value: 0}}},
			Vector{Counters: []Counter{{ID: 77, Value: 0}}},
			Equal,
		},

		// Equal vectors are equal
		{
			Vector{Counters: []Counter{{ID: 42, Value: 33}}},
			Vector{Counters: []Counter{{ID: 42, Value: 33}}},
			Equal,
		},
		{
			Vector{Counters: []Counter{{ID: 42, Value: 33}, {ID: 77, Value: 24}}},
			Vector{Counters: []Counter{{ID: 42, Value: 33}, {ID: 77, Value: 24}}},
			Equal,
		},

		// These a-vectors are all greater than the b-vector
		{
			Vector{Counters: []Counter{{ID: 42, Value: 1}}},
			Vector{},
			Greater,
		},
		{
			Vector{Counters: []Counter{{ID: 0, Value: 1}}},
			Vector{Counters: []Counter{{ID: 0, Value: 0}}},
			Greater,
		},
		{
			Vector{Counters: []Counter{{ID: 42, Value: 1}}},
			Vector{Counters: []Counter{{ID: 42, Value: 0}}},
			Greater,
		},
		{
			Vector{Counters: []Counter{{ID: math.MaxUint64, Value: 1}}},
			Vector{Counters: []Counter{{ID: math.MaxUint64, Value: 0}}},
			Greater,
		},
		{
			Vector{Counters: []Counter{{ID: 0, Value: math.MaxUint64}}},
			Vector{Counters: []Counter{{ID: 0, Value: 0}}},
			Greater,
		},
		{
			Vector{Counters: []Counter{{ID: 42, Value: math.MaxUint64}}},
			Vector{Counters: []Counter{{ID: 42, Value: 0}}},