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myersdiff_test.go
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37 lines (35 loc) · 1.03 KB
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package diff3
import (
"testing"
)
func Test_middleSnake(t *testing.T) {
for _, tc := range []struct {
a, b string
x, y, u, v, d int
}{
{"A", "A", 0, 0, 1, 1, 0},
{"A", "B", 1, 0, 1, 0, 2},
{"AB", "AB", 0, 0, 2, 2, 0},
{"AB", "AC", 2, 1, 2, 1, 2},
{"AB", "BC", 1, 0, 2, 1, 2},
{"AB", "CD", 2, 0, 2, 0, 4},
{"AB", "A", 2, 1, 2, 1, 1},
{"AB", "B", 1, 0, 2, 1, 1},
{"AB", "AAB", 1, 2, 2, 3, 1},
{"AB", "ABB", 2, 3, 2, 3, 1},
{"", "", 0, 0, 0, 0, 0},
{"A", "", 1, 0, 1, 0, 1},
{"", "A", 0, 1, 0, 1, 1},
{"AB", "", 1, 0, 1, 0, 2},
{"", "AB", 0, 1, 0, 1, 2},
{"AAAAAAAABDDDDDDDDDDDDDDD", "AAAAAAAACDDDDDDDDDDDDDDD", 9, 8, 9, 8, 2},
{"AAAAAAAACCCCCCCCCCCCCCCC", "AAABBBBCCCCCCCCCCCCCCCCC", 5, 0, 8, 3, 10},
} {
t.Run(tc.a+"-"+tc.b, func(t *testing.T) {
x, y, u, v, d := middleSnake([]rune(tc.a), []rune(tc.b))
if x != tc.x || y != tc.y || u != tc.u || v != tc.v || d != tc.d {
t.Errorf("expected %d %d %d %d %d, got %d %d %d %d %d", tc.x, tc.y, tc.u, tc.v, tc.d, x, y, u, v, d)
}
})
}
}