Function TestLen

orderedmap_test.go:136–172

(t *testing.T)

}

func TestLen(t *testing.T) {
	t.Run("EmptyMapIsZeroLen", func(t *testing.T) {
		m := orderedmap.NewOrderedMap()
		assert.Equal(t, 0, m.Len())
	})

	t.Run("SingleElementIsLenOne", func(t *testing.T) {
		m := orderedmap.NewOrderedMap()
		m.Set(123, true)
		assert.Equal(t, 1, m.Len())
	})

	t.Run("ThreeElements", func(t *testing.T) {
		m := orderedmap.NewOrderedMap()
		m.Set(1, true)
		m.Set(2, true)
		m.Set(3, true)
		assert.Equal(t, 3, m.Len())
	})

	t.Run("Performance", func(t *testing.T) {
		if testing.Short() {
			t.Skip("performance test skipped in short mode")
		}

		res1 := testing.Benchmark(benchmarkOrderedMap_Len(100))
		res4 := testing.Benchmark(benchmarkOrderedMap_Len(400))

		// O(1) would mean that res4 should take about the same time as res1,
		// because we are accessing the same amount of elements, just on
		// different sized maps.

		assert.InDelta(t,
			res1.NsPerOp(), res4.NsPerOp(),
			0.5*float64(res1.NsPerOp()))
	})
}

func TestKeys(t *testing.T) {
	t.Run("EmptyMap", func(t *testing.T) {