test case: "#0 condition 1.1"
in:
  key: "0123456789[]"
  key_len: 5
  buf_len: 6
out:
  key: "...[]"
---
test case: "#1 condition 1.2"
in:
  key: "0123456789[]"
  key_len: 10
  buf_len: 11
out:
  key: "01234...[]"
---
test case: "#2 condition 1.3"
in:
  key: "0123456789[a]"
  key_len: 10
  buf_len: 11
out:
  key: "0123...[a]"
---
test case: "#3 condition 1.4"
in:
  key: "0123456789[ab]"
  key_len: 10
  buf_len: 11
out:
  key: "012...[ab]"
---
test case: "#4 condition 1.5"
in:
  key: "0123456789[abc]"
  key_len: 10
  buf_len: 11
out:
  key: "01...[abc]"
---
test case: "#5 condition 1.6"
in:
  key: "0123456789[abc]"
  key_len: 10
  buf_len: 10
out:
  key: "0123456789[abc]"
---
test case: "#6 condition 2.1"
in:
  key: "0123456789[aaaaabbbbbccccc]"
  key_len: 10
  buf_len: 11
out:
  key: "01...[...]"
---
test case: "#7 condition 2.2"
in:
  key: "0123456789[abcd]"
  key_len: 10
  buf_len: 10
out:
  key: "0123456789[abcd]"
---

test case: "#8 condition 3.1"
in:
  key: "k[aaaaabbbbbccccc]"
  key_len: 18
  buf_len: 19
out:
  key: "k[aaaaabbbbbccccc]"
---
test case: "#9 condition 3.2"
in:
  key: "k[aaaaabbbbbccccc]"
  key_len: 19
  buf_len: 20
out:
  key: "k[aaaaabbbbbccccc]"
---
test case: "#10 condition 3.3"
in:
  key: "k[aaaaabbbbbccccc]"
  key_len: 17
  buf_len: 18
out:
  key: "k[aaaaabbbbbc...]"
---
test case: "#11 condition 3.4"
in:
  key: "k[aaaaabbbbbccccc]"
  key_len: 6
  buf_len: 7
out:
  key: "k[...]"
---
test case: "#12 condition 3.5"
in:
  key: "[aaaaabbbbbccccc]"
  key_len: 5
  buf_len: 6
out:
  key: "[...]"
---
test case: "#13 condition 3.6"
in:
  key: "[aaaaabbbbbccccc]"
  key_len: 4
  buf_len: 5
out:
  key: "[aaaaabbbbbccccc]"
---

test case: "#14 condition 4.1"
in:
  key: "aaaaabbbbbccccc"
  key_len: 15
  buf_len: 16
out:
  key: "aaaaabbbbbccccc"
---
test case: "#15 condition 4.2"
in:
  key: "aaaaabbbbbccccc"
  key_len: 16
  buf_len: 17
out:
  key: "aaaaabbbbbccccc"
---
test case: "#16 condition 4.3"
in:
  key: "aaaaabbbbbccccc"
  key_len: 14
  buf_len: 15
out:
  key: "aaaaabbbbbc..."
---
test case: "#17 condition 4.4"
in:
  key: "aaaaabbbbbccccc"
  key_len: 2
  buf_len: 3
out:
  key: "aaaaabbbbbccccc"
---
test case: "#18 condition 4.5"
in:
  key: "aaaaabbbbbccccc"
  key_len: 3
  buf_len: 4
out:
  key: "..."
---


test case: "#0 ru condition 1.1"
in:
  key: "фывапролдж[]"
  key_len: 5
  buf_len: 6
out:
  key: "...[]"
---
test case: "#1 ru condition 1.2"
in:
  key: "фывапролдж[]"
  key_len: 10
  buf_len: 16
out:
  key: "фывап...[]"
---
test case: "#2 ru condition 1.3"
in:
  key: "фывапролдж[ф]"
  key_len: 10
  buf_len: 16
out:
  key: "фыва...[ф]"
---
test case: "#3 ru condition 1.4"
in:
  key: "фывапролдж[фы]"
  key_len: 10
  buf_len: 16
out:
  key: "фыв...[фы]"
---
test case: "#4 ru condition 1.5"
in:
  key: "фывапролдж[фыв]"
  key_len: 10
  buf_len: 16
out:
  key: "фы...[фыв]"
---
test case: "#5 ru condition 1.6"
in:
  key: "фывапролдж[фыв]"
  key_len: 10
  buf_len: 15
out:
  key: "фывапролдж[фыв]"
---
test case: "#6 ru condition 2.1"
in:
  key: "фывапролдж[фывапролдж]"
  key_len: 10
  buf_len: 13
out:
  key: "фы...[...]"
---
test case: "#7 ru condition 2.2"
in:
  key: "фывапролдж[фывапролдж]"
  key_len: 10
  buf_len: 12
out:
  key: "фывапролдж[фывапролдж]"
---

test case: "#8 ru condition 3.1"
in:
  key: "я[фывапролджэю]"
  key_len: 15
  buf_len: 0
out:
  key: "я[фывапролджэю]"
---
test case: "#9 ru condition 3.2"
in:
  key: "я[фывапролджэю]"
  key_len: 16
  buf_len: 0
out:
  key: "я[фывапролджэю]"
---
test case: "#10 ru condition 3.3"
in:
  key: "я[фывапролджэю]"
  key_len: 14
  buf_len: 24
out:
  key: "я[фывапрол...]"
---
test case: "#11 ru condition 3.4"
in:
  key: "я[фывапролдж]"
  key_len: 6
  buf_len: 8
out:
  key: "я[...]"
---
test case: "#12 ru condition 3.5"
in:
  key: "[фывапролдж]"
  key_len: 5
  buf_len: 6
out:
  key: "[...]"
---
test case: "#13 ru condition 3.6"
in:
  key: "[фывапролдж]"
  key_len: 4
  buf_len: 5
out:
  key: "[фывапролдж]"
---

test case: "#14 ru condition 4.1"
in:
  key: "фывапролдж"
  key_len: 10
  buf_len: 0
out:
  key: "фывапролдж"
---
test case: "#15 ru condition 4.2"
in:
  key: "фывапролдж"
  key_len: 11
  buf_len: 0
out:
  key: "фывапролдж"
---
test case: "#16 ru condition 4.3"
in:
  key: "фывапролдж"
  key_len: 9
  buf_len: 16
out:
  key: "фывапр..."
---
test case: "#17 ru condition 4.4"
in:
  key: "фывапролдж"
  key_len: 2
  buf_len: 0
out:
  key: "фывапролдж"
---
test case: "#18 ru condition 4.5"
in:
  key: "фывапролдж"
  key_len: 3
  buf_len: 4
out:
  key: "..."