package container import ( "fmt" "testing" "github.com/docker/docker/api/types" "gotest.tools/assert" ) func TestCalculateMemUsageUnixNoCache(t *testing.T) { // Given stats := types.MemoryStats{Usage: 500, Stats: map[string]uint64{"cache": 400}} // When result := calculateMemUsageUnixNoCache(stats) // Then assert.Assert(t, inDelta(100.0, result, 1e-6)) } func TestCalculateMemPercentUnixNoCache(t *testing.T) { // Given someLimit := float64(100.0) noLimit := float64(0.0) used := float64(70.0) // When and Then t.Run("Limit is set", func(t *testing.T) { result := calculateMemPercentUnixNoCache(someLimit, used) assert.Assert(t, inDelta(70.0, result, 1e-6)) }) t.Run("No limit, no cgroup data", func(t *testing.T) { result := calculateMemPercentUnixNoCache(noLimit, used) assert.Assert(t, inDelta(0.0, result, 1e-6)) }) } func inDelta(x, y, delta float64) func() (bool, string) { return func() (bool, string) { diff := x - y if diff < -delta || diff > delta { return false, fmt.Sprintf("%f != %f within %f", x, y, delta) } return true, "" } }