1 files changed, 216 insertions, 0 deletions
diff --git a/test/functional/autocmd/textyankpost_spec.lua b/test/functional/autocmd/textyankpost_spec.lua
new file mode 100644
index 0000000000..c26ceeaedc
--- /dev/null
+++ b/test/functional/autocmd/textyankpost_spec.lua
@@ -0,0 +1,216 @@
+local helpers = require('test.functional.helpers')
+local clear, eval, eq = helpers.clear, helpers.eval, helpers.eq
+local feed, execute, expect, command = helpers.feed, helpers.execute, helpers.expect, helpers.command
+local curbufmeths, funcs, neq = helpers.curbufmeths, helpers.funcs, helpers.neq
+
+describe('TextYankPost', function()
+  before_each(function()
+    clear()
+
+    -- emulate the clipboard so system clipboard isn't affected
+    execute('let &rtp = "test/functional/fixtures,".&rtp')
+
+    execute('let g:count = 0')
+    execute('autocmd TextYankPost * let g:event = copy(v:event)')
+    execute('autocmd TextYankPost * let g:count += 1')
+
+    curbufmeths.set_lines(0, -1, true, {
+      'foo\0bar',
+      'baz text',
+    })
+  end)
+
+  it('is executed after yank and handles register types', function()
+    feed('yy')
+    eq({
+      operator = 'y',
+      regcontents = { 'foo\nbar' },
+      regname = '',
+      regtype = 'V'
+    }, eval('g:event'))
+    eq(1, eval('g:count'))
+
+    -- v:event is cleared after the autocommand is done
+    eq({}, eval('v:event'))
+
+    feed('+yw')
+    eq({
+      operator = 'y',
+      regcontents = { 'baz ' },
+      regname = '',
+      regtype = 'v'
+    }, eval('g:event'))
+    eq(2, eval('g:count'))
+
+    feed('<c-v>eky')
+    eq({
+      operator = 'y',
+      regcontents = { 'foo', 'baz' },
+      regname = '',
+      regtype = "\0223" -- ^V + block width
+    }, eval('g:event'))
+    eq(3, eval('g:count'))
+  end)
+
+  it('makes v:event immutable', function()
+    feed('yy')
+    eq({
+      operator = 'y',
+      regcontents = { 'foo\nbar' },
+      regname = '',
+      regtype = 'V'
+    }, eval('g:event'))
+
+    execute('set debug=msg')
+    -- the regcontents should not be changed without copy.
+    local status, err = pcall(command,'call extend(g:event.regcontents, ["more text"])')
+    eq(status,false)
+    neq(nil, string.find(err, ':E742:'))
+
+    -- can't mutate keys inside the autocommand
+    execute('autocmd! TextYankPost * let v:event.regcontents = 0')
+    status, err = pcall(command,'normal yy')
+    eq(status,false)
+    neq(nil, string.find(err, ':E46:'))
+
+    -- can't add keys inside the autocommand
+    execute('autocmd! TextYankPost * let v:event.mykey = 0')
+    status, err = pcall(command,'normal yy')
+    eq(status,false)
+    neq(nil, string.find(err, ':E742:'))
+  end)
+
+  it('is not invoked recursively', function()
+    execute('autocmd TextYankPost * normal "+yy')
+    feed('yy')
+    eq({
+      operator = 'y',
+      regcontents = { 'foo\nbar' },
+      regname = '',
+      regtype = 'V'
+    }, eval('g:event'))
+    eq(1, eval('g:count'))
+    eq({ 'foo\nbar' }, funcs.getreg('+',1,1))
+  end)
+
+  it('is executed after delete and change', function()
+    feed('dw')
+    eq({
+      operator = 'd',
+      regcontents = { 'foo' },
+      regname = '',
+      regtype = 'v'
+    }, eval('g:event'))
+    eq(1, eval('g:count'))
+
+    feed('dd')
+    eq({
+      operator = 'd',
+      regcontents = { '\nbar' },
+      regname = '',
+      regtype = 'V'
+    }, eval('g:event'))
+    eq(2, eval('g:count'))
+
+    feed('cwspam<esc>')
+    eq({
+      operator = 'c',
+      regcontents = { 'baz' },
+      regname = '',
+      regtype = 'v'
+    }, eval('g:event'))
+    eq(3, eval('g:count'))
+  end)
+
+  it('is not executed after black-hole operation', function()
+    feed('"_dd')
+    eq(0, eval('g:count'))
+
+    feed('"_cwgood<esc>')
+    eq(0, eval('g:count'))
+
+    expect([[
+      good text]])
+    feed('"_yy')
+    eq(0, eval('g:count'))
+
+    execute('delete _')
+    eq(0, eval('g:count'))
+  end)
+
+  it('gives the correct register name', function()
+    feed('$"byiw')
+    eq({
+      operator = 'y',
+      regcontents = { 'bar' },
+      regname = 'b',
+      regtype = 'v'
+    }, eval('g:event'))
+
+    feed('"*yy')
+    eq({
+      operator = 'y',
+      regcontents = { 'foo\nbar' },
+      regname = '*',
+      regtype = 'V'
+    }, eval('g:event'))
+
+    execute("set clipboard=unnamed")
+
+    -- regname still shows the name the user requested
+    feed('yy')
+    eq({
+      operator = 'y',
+      regcontents = { 'foo\nbar' },
+      regname = '',
+      regtype = 'V'
+    }, eval('g:event'))
+
+    feed('"*yy')
+    eq({
+      operator = 'y',
+      regcontents = { 'foo\nbar' },
+      regname = '*',
+      regtype = 'V'
+    }, eval('g:event'))
+  end)
+
+  it('works with Ex commands', function()
+    execute('1delete +')
+    eq({
+      operator = 'd',
+      regcontents = { 'foo\nbar' },
+      regname = '+',
+      regtype = 'V'
+    }, eval('g:event'))
+    eq(1, eval('g:count'))
+
+    execute('yank')
+    eq({
+      operator = 'y',
+      regcontents = { 'baz text' },
+      regname = '',
+      regtype = 'V'
+    }, eval('g:event'))
+    eq(2, eval('g:count'))
+
+    execute('normal yw')
+    eq({
+      operator = 'y',
+      regcontents = { 'baz ' },
+      regname = '',
+      regtype = 'v'
+    }, eval('g:event'))
+    eq(3, eval('g:count'))
+
+    execute('normal! dd')
+    eq({
+      operator = 'd',
+      regcontents = { 'baz text' },
+      regname = '',
+      regtype = 'V'
+    }, eval('g:event'))
+    eq(4, eval('g:count'))
+  end)
+
+end)