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local helpers = require('test.unit.helpers')(after_each)
local itp = helpers.gen_itp(it)
local to_cstr = helpers.to_cstr
local eq = helpers.eq
local NULL = helpers.NULL
local buffer = helpers.cimport('./src/nvim/buffer.h')
describe('buffer functions', function()
local buflist_new = function(file, flags)
local c_file = to_cstr(file)
return buffer.buflist_new(c_file, c_file, 1, flags)
end
local close_buffer = function(win, buf, action, abort_if_last, ignore_abort)
return buffer.close_buffer(win, buf, action, abort_if_last, ignore_abort)
end
local path1 = 'test_file_path'
local path2 = 'file_path_test'
local path3 = 'path_test_file'
setup(function()
-- create the files
io.open(path1, 'w'):close()
io.open(path2, 'w'):close()
io.open(path3, 'w'):close()
end)
teardown(function()
os.remove(path1)
os.remove(path2)
os.remove(path3)
end)
describe('buf_valid', function()
itp('should view NULL as an invalid buffer', function()
eq(false, buffer.buf_valid(NULL))
end)
itp('should view an open buffer as valid', function()
local buf = buflist_new(path1, buffer.BLN_LISTED)
eq(true, buffer.buf_valid(buf))
end)
itp('should view a closed and hidden buffer as valid', function()
local buf = buflist_new(path1, buffer.BLN_LISTED)
close_buffer(NULL, buf, 0, 0, 0)
eq(true, buffer.buf_valid(buf))
end)
itp('should view a closed and unloaded buffer as valid', function()
local buf = buflist_new(path1, buffer.BLN_LISTED)
close_buffer(NULL, buf, buffer.DOBUF_UNLOAD, 0, 0)
eq(true, buffer.buf_valid(buf))
end)
itp('should view a closed and wiped buffer as invalid', function()
local buf = buflist_new(path1, buffer.BLN_LISTED)
close_buffer(NULL, buf, buffer.DOBUF_WIPE, 0, 0)
eq(false, buffer.buf_valid(buf))
end)
end)
describe('buflist_findpat', function()
local ALLOW_UNLISTED = 1
local ONLY_LISTED = 0
local buflist_findpat = function(pat, allow_unlisted)
return buffer.buflist_findpat(to_cstr(pat), NULL, allow_unlisted, 0, 0)
end
itp('should find exact matches', function()
local buf = buflist_new(path1, buffer.BLN_LISTED)
eq(buf.handle, buflist_findpat(path1, ONLY_LISTED))
close_buffer(NULL, buf, buffer.DOBUF_WIPE, 0, 0)
end)
itp('should prefer to match the start of a file path', function()
local buf1 = buflist_new(path1, buffer.BLN_LISTED)
local buf2 = buflist_new(path2, buffer.BLN_LISTED)
local buf3 = buflist_new(path3, buffer.BLN_LISTED)
eq(buf1.handle, buflist_findpat('test', ONLY_LISTED))
eq(buf2.handle, buflist_findpat('file', ONLY_LISTED))
eq(buf3.handle, buflist_findpat('path', ONLY_LISTED))
close_buffer(NULL, buf1, buffer.DOBUF_WIPE, 0, 0)
close_buffer(NULL, buf2, buffer.DOBUF_WIPE, 0, 0)
close_buffer(NULL, buf3, buffer.DOBUF_WIPE, 0, 0)
end)
itp('should prefer to match the end of a file over the middle', function()
--{ Given: Two buffers, where 'test' appears in both
-- And: 'test' appears at the end of buf3 but in the middle of buf2
local buf2 = buflist_new(path2, buffer.BLN_LISTED)
local buf3 = buflist_new(path3, buffer.BLN_LISTED)
-- Then: buf2 is the buffer that is found
eq(buf2.handle, buflist_findpat('test', ONLY_LISTED))
--}
--{ When: We close buf2
close_buffer(NULL, buf2, buffer.DOBUF_WIPE, 0, 0)
-- And: Open buf1, which has 'file' in the middle of its name
local buf1 = buflist_new(path1, buffer.BLN_LISTED)
-- Then: buf3 is found since 'file' appears at the end of the name
eq(buf3.handle, buflist_findpat('file', ONLY_LISTED))
--}
close_buffer(NULL, buf1, buffer.DOBUF_WIPE, 0, 0)
close_buffer(NULL, buf3, buffer.DOBUF_WIPE, 0, 0)
end)
itp('should match a unique fragment of a file path', function()
local buf1 = buflist_new(path1, buffer.BLN_LISTED)
local buf2 = buflist_new(path2, buffer.BLN_LISTED)
local buf3 = buflist_new(path3, buffer.BLN_LISTED)
eq(buf3.handle, buflist_findpat('_test_', ONLY_LISTED))
close_buffer(NULL, buf1, buffer.DOBUF_WIPE, 0, 0)
close_buffer(NULL, buf2, buffer.DOBUF_WIPE, 0, 0)
close_buffer(NULL, buf3, buffer.DOBUF_WIPE, 0, 0)
end)
itp('should include / ignore unlisted buffers based on the flag.', function()
--{ Given: A buffer
local buf3 = buflist_new(path3, buffer.BLN_LISTED)
-- Then: We should find the buffer when it is given a unique pattern
eq(buf3.handle, buflist_findpat('_test_', ONLY_LISTED))
--}
--{ When: We unlist the buffer
close_buffer(NULL, buf3, buffer.DOBUF_DEL, 0, 0)
-- Then: It should not find the buffer when searching only listed buffers
eq(-1, buflist_findpat('_test_', ONLY_LISTED))
-- And: It should find the buffer when including unlisted buffers
eq(buf3.handle, buflist_findpat('_test_', ALLOW_UNLISTED))
--}
--{ When: We wipe the buffer
close_buffer(NULL, buf3, buffer.DOBUF_WIPE, 0, 0)
-- Then: It should not find the buffer at all
eq(-1, buflist_findpat('_test_', ONLY_LISTED))
eq(-1, buflist_findpat('_test_', ALLOW_UNLISTED))
--}
end)
itp('should prefer listed buffers to unlisted buffers.', function()
--{ Given: Two buffers that match a pattern
local buf1 = buflist_new(path1, buffer.BLN_LISTED)
local buf2 = buflist_new(path2, buffer.BLN_LISTED)
-- Then: The first buffer is preferred when both are listed
eq(buf1.handle, buflist_findpat('test', ONLY_LISTED))
--}
--{ When: The first buffer is unlisted
close_buffer(NULL, buf1, buffer.DOBUF_DEL, 0, 0)
-- Then: The second buffer is preferred because
-- unlisted buffers are not allowed
eq(buf2.handle, buflist_findpat('test', ONLY_LISTED))
--}
--{ When: We allow unlisted buffers
-- Then: The second buffer is still preferred
-- because listed buffers are preferred to unlisted
eq(buf2.handle, buflist_findpat('test', ALLOW_UNLISTED))
--}
--{ When: We unlist the second buffer
close_buffer(NULL, buf2, buffer.DOBUF_DEL, 0, 0)
-- Then: The first buffer is preferred again
-- because buf1 matches better which takes precedence
-- when both buffers have the same listing status.
eq(buf1.handle, buflist_findpat('test', ALLOW_UNLISTED))
-- And: Neither buffer is returned when ignoring unlisted
eq(-1, buflist_findpat('test', ONLY_LISTED))
--}
close_buffer(NULL, buf1, buffer.DOBUF_WIPE, 0, 0)
close_buffer(NULL, buf2, buffer.DOBUF_WIPE, 0, 0)
end)
end)
end)
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