gistfile1.txt

This gist is to show that this question here:
https://stackoverflow.com/a/38978201/3787051

Is not answered by this answer here:
https://stackoverflow.com/q/55220417/3787051

This is Bash unit test code to test various solutions that were suggested as answers to my question.

==============

setUp() {
  data="aaa
PAT1
bbb
ccc
ddd
PAT2
eee
PAT1
2
46
PAT2
xyz"

  expected="bbb
ccc
ddd"
}

# These four relate to:
# https://stackoverflow.com/q/55220417/3787051

testLinkedNotApplicableSolution1() {
  actual=$(gsed -n '/PAT1/,/PAT2/{/PAT1/!{/PAT2/!p}}' <<< $data)
  assertNotEquals "$expected" "$actual"
}

testLinkedNotApplicableSolution2() {
  actual=$(gsed -n '/PAT1/,/PAT2/{//!p}' <<< $data)
  assertNotEquals "$expected" "$actual"
}

testLinkedNotApplicableSolution3() {
  actual=$(gsed -n '/PAT1/,/PAT2/p' <<< $data)
  assertNotEquals "$expected" "$actual"
}

testLinkedNotApplicableSolution4() {
  actual=$(gsed -n '/PAT1/,/PAT2/{/PAT2/!p}' <<< $data)
  assertNotEquals "$expected" "$actual"
}

# These all relate to solutions proposed in the chat

testIniansIncorrectSolution1InChat() {
  actual=$(awk '/PAT1/{flag=1; next} /PAT2/{flag=0} flag' <<< $data)
  assertNotEquals "$expected" "$actual"
}

testIniansIncorrectSolution2InChat() {
  actual=$(gsed -n '/PAT1/,/PAT2/{//!p}' <<< $data)
  assertNotEquals "$expected" "$actual"
}

# This is a correct solution, but also an original solution first proposed in chat.

testJamesBrownsCorrectSolutionInChat() {
  actual=$(awk '/PAT1/{flag=1; next} /PAT2/{exit} flag' <<< $data)
  assertEquals "$expected" "$actual"
}

# This is my solution, and still I think the cleanest, and the one I wanted to document.

testMyOwnCorrectSolution() {
  actual=$(gsed '0,/PAT1/d;/PAT2/Q' <<< $data)
  assertEquals "$expected" "$actual"
}

. shunit2

=============

Results:

▶ bash test.sh        
testLinkedNotApplicableSolution1
testLinkedNotApplicableSolution2
testLinkedNotApplicableSolution3
testLinkedNotApplicableSolution4
testIniansIncorrectSolution1InChat
testIniansIncorrectSolution2InChat
testJamesBrownsCorrectSolutionInChat
testMyOwnCorrectSolution

Ran 8 tests.

OK