exercism/go/ocr-numbers/ocr_numbers_test.go

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// Go requirements:
//
// Define a function recognizeDigit as README Step 1 except make it recognize
// all ten digits 0 to 9. Pick what you like for parameters and return values
// but make it useful as a subroutine for README step 2.
//
// For README Step 2 define,
//
// func Recognize(string) []string
//
// and implement it using recognizeDigit.
//
// Input strings tested here have a \n at the beginning of each line and
// no trailing \n on the last line. (This makes for readable raw string
// literals.)
//
// For bonus points, gracefully handle misformatted data. What should you
// do with a partial cell? Discard it? Pad with spaces? Report it with a
// "?" character? What should you do if the first character is not \n?
package ocr
import (
"reflect"
"testing"
)
var tests = []struct {
in string
out []string
}{
{`
_
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`, []string{"0"}},
{`
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`, []string{"1"}},
{`
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`, []string{"2"}},
{`
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`, []string{"3"}},
{`
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`, []string{"4"}},
{`
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`, []string{"5"}},
{`
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`, []string{"6"}},
{`
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`, []string{"7"}},
{`
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`, []string{"8"}},
{`
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`, []string{"9"}},
{`
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`, []string{"10"}},
{`
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`, []string{"?"}},
{`
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`, []string{"110101100"}},
{`
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`, []string{"11?10?1?0"}},
{`
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`, []string{"1234567890"}},
{`
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`, []string{"123", "456", "789"}},
}
var _ = recognizeDigit // step 1.
func TestRecognize(t *testing.T) {
for _, test := range tests {
if res := Recognize(test.in); !reflect.DeepEqual(res, test.out) {
t.Fatalf("Recognize(`%s`) = %q, want %q.", test.in, res, test.out)
}
}
}