kubernetes/test/e2e/storage/utils/utils_test.go

// getSizeRangesIntersection takes two instances of storage size ranges and determines the
// intersection of the intervals (if it exists) and return the minimum of the intersection
// to be used as the claim size for the test.
// if value not set, that means there's no minimum or maximum size limitation and we set default size for it.
// Considerate all corner case as followed:
// first: A,B is regular value and ? means unspecified
// second: C,D is regular value and ? means unspecified
// ----------------------------------------------------------------
// |    \second| min=C,max=?| min=C,max=D| min=?,max=D| min=?,max=?|
// |first\     |            |            |            |            |
// |----------------------------------------------------------------
// |min=A,max=?|    #1      |     #2     |     #3     |    #4      |
// -----------------------------------------------------------------
// |min=A,max=B|    #5      |     #6     |     #7     |    #8      |
// -----------------------------------------------------------------
// |min=?,max=B|    #9      |     #10    |     #11    |    #12     |
// -----------------------------------------------------------------
// |min=?,max=?|    #13     |     #14    |     #15    |    #16     |
// |---------------------------------------------------------------|
func Test_GetSizeRangesIntersection(t *testing.T) { … }