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Merge pull request #627 from exercism/hamming-schema
Hamming schema
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‎exercises/hamming/canonical-data.json

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{
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"#": [
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"Language implementations vary on the issue of unequal length strands.",
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"A language may elect to simplify this task by only presenting equal",
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"length test cases. For languages handling unequal length strands as",
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"error condition, unequal length test cases are included here and are",
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"indicated with an expected value of -1. Note however that -1 is",
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"simply an indication here in the JSON. Actually returning -1 from",
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"a hamming distance function may or may not be idiomatic in a language.",
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"Language idioms of errors or exceptions should be followed.",
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"Alternative interpretations such as ignoring excess length at the end",
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"are not represented here."
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],
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"cases": [
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{
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"description": "identical strands",
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"strand1": "A",
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"strand2": "A",
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"expected": 0
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},
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{
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"description": "long identical strands",
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"strand1": "GGACTGA",
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"strand2": "GGACTGA",
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"expected": 0
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},
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{
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"description": "complete distance in single nucleotide strands",
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"strand1": "A",
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"strand2": "G",
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"expected": 1
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},
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{
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"description": "complete distance in small strands",
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"strand1": "AG",
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"strand2": "CT",
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"expected": 2
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},
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{
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"description": "small distance in small strands",
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"strand1": "AT",
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"strand2": "CT",
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"expected": 1
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},
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{
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"description": "small distance",
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"strand1": "GGACG",
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"strand2": "GGTCG",
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"expected": 1
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},
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{
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"description": "small distance in long strands",
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"strand1": "ACCAGGG",
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"strand2": "ACTATGG",
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"expected": 2
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},
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{
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"description": "non-unique character in first strand",
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"strand1": "AGA",
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"strand2": "AGG",
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"expected": 1
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},
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{
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"description": "non-unique character in second strand",
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"strand1": "AGG",
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"strand2": "AGA",
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"expected": 1
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},
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{
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"description": "same nucleotides in different positions",
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"strand1": "TAG",
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"strand2": "GAT",
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"expected": 2
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},
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{
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"description": "large distance",
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"strand1": "GATACA",
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"strand2": "GCATAA",
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"expected": 4
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},
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{
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"description": "large distance in off-by-one strand",
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"strand1": "GGACGGATTCTG",
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"strand2": "AGGACGGATTCT",
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"expected": 9
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},
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{
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"description": "empty strands",
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"strand1": "",
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"strand2": "",
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"expected": 0
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},
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{
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"description": "disallow first strand longer",
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"strand1": "AATG",
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"strand2": "AAA",
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"expected": -1
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},
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{
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"description": "disallow second strand longer",
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"strand1": "ATA",
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"strand2": "AGTG",
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"expected": -1
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}
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]
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"exercise": "hamming",
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"version": "1.0.0",
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"comments": [
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"Language implementations vary on the issue of unequal length strands.",
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"A language may elect to simplify this task by only presenting equal",
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"length test cases. For languages handling unequal length strands as",
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"error condition, unequal length test cases are included here and are",
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"indicated with an expected value of -1. Note however that -1 is",
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"simply an indication here in the JSON. Actually returning -1 from",
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"a hamming distance function may or may not be idiomatic in a language.",
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"Language idioms of errors or exceptions should be followed.",
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"Alternative interpretations such as ignoring excess length at the end",
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"are not represented here."
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],
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"cases": [
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{
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"description": "identical strands",
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"property": "distance",
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"strand1": "A",
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"strand2": "A",
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"expected": 0
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},
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{
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"description": "long identical strands",
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"property": "distance",
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"strand1": "GGACTGA",
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"strand2": "GGACTGA",
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"expected": 0
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},
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{
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"description": "complete distance in single nucleotide strands",
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"property": "distance",
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"strand1": "A",
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"strand2": "G",
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"expected": 1
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},
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{
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"description": "complete distance in small strands",
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"property": "distance",
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"strand1": "AG",
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"strand2": "CT",
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"expected": 2
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},
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{
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"description": "small distance in small strands",
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"property": "distance",
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"strand1": "AT",
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"strand2": "CT",
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"expected": 1
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},
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{
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"description": "small distance",
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"property": "distance",
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"strand1": "GGACG",
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"strand2": "GGTCG",
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"expected": 1
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},
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{
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"description": "small distance in long strands",
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"property": "distance",
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"strand1": "ACCAGGG",
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"strand2": "ACTATGG",
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"expected": 2
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},
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{
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"description": "non-unique character in first strand",
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"property": "distance",
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"strand1": "AGA",
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"strand2": "AGG",
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"expected": 1
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},
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{
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"description": "non-unique character in second strand",
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"property": "distance",
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"strand1": "AGG",
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"strand2": "AGA",
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"expected": 1
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},
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{
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"description": "same nucleotides in different positions",
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"property": "distance",
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"strand1": "TAG",
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"strand2": "GAT",
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"expected": 2
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},
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{
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"description": "large distance",
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"property": "distance",
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"strand1": "GATACA",
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"strand2": "GCATAA",
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"expected": 4
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},
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{
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"description": "large distance in off-by-one strand",
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"property": "distance",
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"strand1": "GGACGGATTCTG",
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"strand2": "AGGACGGATTCT",
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"expected": 9
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},
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{
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"description": "empty strands",
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"property": "distance",
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"strand1": "",
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"strand2": "",
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"expected": 0
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},
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{
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"description": "disallow first strand longer",
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"property": "distance",
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"strand1": "AATG",
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"strand2": "AAA",
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"expected": -1
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},
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{
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"description": "disallow second strand longer",
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"property": "distance",
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"strand1": "ATA",
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"strand2": "AGTG",
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"expected": -1
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}
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]
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}

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