56 lines
1.3 KiB
Go
56 lines
1.3 KiB
Go
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package binary
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import (
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"testing"
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)
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// You must implement the function,
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//
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// func ParseBinary(string) (int, error)
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//
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// It is standard for Go functions to return error values to report error conditions.
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// The test cases below are all valid binary numbers however. For this exercise you
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// may simply return nil for the error value in all cases.
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//
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// For bonus points though, what errors might be possible when parsing a number?
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// Can you add code to detect error conditions and return appropriate error values?
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var testCases = []struct {
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binary string
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expected int
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}{
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{"1", 1},
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{"10", 2},
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{"11", 3},
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{"100", 4},
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{"1001", 9},
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{"11010", 26},
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{"10001101000", 1128},
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{"0", 0},
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}
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func TestParseBinary(t *testing.T) {
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for _, tt := range testCases {
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actual, err := ParseBinary(tt.binary)
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// We don't expect errors for any of the test cases.
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if err != nil {
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t.Fatalf("ParseBinary(%v) returned error %q. Error not expected.",
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tt.binary, err)
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}
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// Well, we don't expect wrong answers either.
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if actual != tt.expected {
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t.Fatalf("ParseBinary(%v): actual %d, expected %v",
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tt.binary, actual, tt.expected)
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}
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}
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}
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// Benchmark combined time for all tests
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func BenchmarkBinary(b *testing.B) {
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for i := 0; i < b.N; i++ {
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for _, tt := range testCases {
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ParseBinary(tt.binary)
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}
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}
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}
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