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A financial institution is to implement a system that calculates the interest rates paid on investment accounts based on the sum invested.
You are responsible for testing the system and decide to use equivalence partitioning and boundary value analysis to design test cases. The requirements describe the following expectations:
Investment range | Interest rate
R500 to RIO 000 10%
RIO 001 to R50 000 11%
R50 001 to RlOOOOO 12%
RIOOOOl to R500 000 | 13%
What is the minimum number of test cases required to cover all valid equivalence partitions for calculating the interest?
Suggested Answer: B
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Using equivalence partitioning, the investment ranges are divided into four partitions:
R500 to R10,000 (10%)
R10,001 to R50,000 (11%)
R50,001 to R100,000 (12%)
R100,001 to R500,000 (13%)
Thus, the minimum number of test cases required to cover all valid equivalence partitions for calculating the interest is 4.
30 comments · newest first
LA
Lai
10 months ago
I thought it might be 4, but I see the logic for 5 now.
JU
Justine
11 months ago
Each range needs at least one case, so 5 is the minimum.
CL
Clorinda
11 months ago
Wait, are we sure about that? Seems like it could be more.
YU
Yuette
11 months ago
Totally agree, 5 seems right!
LA
Lasandra
11 months ago
I think we need 5 test cases for the ranges.
GL
Glory
12 months ago
I'm a bit confused about the minimum number; could it be five if we include the boundaries?
AL
Albert
12 months ago
I practiced a similar question, and I think we might need to consider boundary values too, which could increase the number of test cases.
NA
Nathalie
12 months ago
I think there are four ranges based on the investment amounts, so maybe we need four test cases?
IS
Isabelle
1 year ago
I remember we discussed equivalence partitioning in class, but I'm not sure how many partitions we actually have here.
ME
Meghann
1 year ago
This is a great opportunity to demonstrate my testing skills. I'll start by identifying the valid partitions based on the investment ranges, then determine the boundary values for each partition. I'm confident I can come up with the minimum number of test cases to thoroughly cover the system's functionality.
MA
Martina
1 year ago
I'm a bit unsure about this one. The requirements seem simple enough, but I want to make sure I'm not missing any edge cases or special considerations. I'll need to review the concepts of equivalence partitioning and boundary value analysis to make sure I approach this correctly.
GL
Glenn
1 year ago
Okay, let me think this through step-by-step. I need to find the minimum number of test cases to cover all the valid partitions. The ranges are clear, so I should be able to determine the boundary values and partition the inputs accordingly.
CL
Clorinda
1 year ago
Hmm, this looks like a straightforward question on equivalence partitioning and boundary value analysis. I'll need to carefully identify the valid partitions based on the investment ranges and interest rates provided.
LY
Lynette
2 years ago
Haha, a million dollars? Sign me up! I'll take the 13% interest rate and retire early. Wait, did I just say the quiet part out loud?
ED
Edgar
2 years ago
User 4: Looks like we all have our eyes on that top tier interest rate!
LO
Lorean
2 years ago
User 3: I would definitely invest a million dollars for that 13% interest rate.
RO
Rosendo
2 years ago
User 2: I know right! Who wouldn't want to retire early with that kind of return?
BR
Bronwyn
2 years ago
User 1: That 13% interest rate for investments over R100,000 sounds pretty tempting.
JE
Jeff
2 years ago
I'm feeling a bit too mathematical for my taste. Let's spice things up a bit! What if we test the system with a million dollars? That would be one way to live the high life, am I right?
DE
Deandrea
2 years ago
Let's save the million-dollar tests for when the system is fully functional within the specified ranges.
JO
Josephine
2 years ago
Testing with a million dollars would be fun, but we need to make sure the system can handle all valid equivalence partitions.
DA
Daniela
2 years ago
I agree, let's focus on testing within the defined boundaries to ensure the system works correctly.
BR
Brianne
2 years ago
That would definitely be living the high life! But let's stick to testing with the specified ranges for now.
QU
Quiana
2 years ago
Hold up, what about the edge cases? We should also test the minimum and maximum values for each range to ensure the system handles them correctly. That's an additional 8 test cases. So the total should be 12.
RO
Rocco
2 years ago
Alright, let's see. We have four different investment ranges, each with a different interest rate. To cover all valid equivalence partitions, we need to test the boundaries between each range. That's 4 test cases. Easy peasy!
DO
Donte
2 years ago
So, the minimum number of test cases required is 4.
CA
Cassie
2 years ago
That's right, each test case will cover the boundaries between the different investment ranges.
MI
Micheal
2 years ago
We only need 4 test cases to cover all valid equivalence partitions.
AD
Adolph
2 years ago
I agree with Sherell. We only need to test the boundaries of each partition to cover all valid cases.
SH
Sherell
2 years ago
I think the answer is A) 5.