tests: Migrate legacy tests 44 and 99 #2366

Consolidates the old test44 and test99 tests into one busted spec.

6 files changed, 149 insertions, 194 deletions

diff --git a/src/nvim/testdir/Makefile b/src/nvim/testdir/Makefile
index c323f10a4f..5ccde6ff2e 100644
--- a/src/nvim/testdir/Makefile
+++ b/src/nvim/testdir/Makefile
@@ -17,7 +17,7 @@ SCRIPTS := test_autoformat_join.out                                    \
            test26.out  test27.out              test29.out  test30.out  \
            test31.out  test32.out              test34.out              \
            test36.out  test37.out  test38.out  test39.out  test40.out  \
-                       test42.out  test43.out  test44.out  test45.out  \
+                       test42.out  test43.out              test45.out  \
            test46.out  test47.out  test48.out  test49.out              \
                        test52.out  test53.out              test55.out  \
                        test57.out  test58.out  test59.out  test60.out  \
@@ -27,7 +27,7 @@ SCRIPTS := test_autoformat_join.out                                    \
            test76.out              test78.out  test79.out  test80.out  \
                        test82.out  test83.out                          \
            test86.out  test87.out  test88.out                          \
-           test96.out                          test99.out              \
+           test96.out                                                  \
            test_listlbr.out                                            \
            test_breakindent.out
 
diff --git a/src/nvim/testdir/test44.in b/src/nvim/testdir/test44.in
deleted file mode 100644
index 7b1a13488f..0000000000
--- a/src/nvim/testdir/test44.in
+++ /dev/null
@@ -1,74 +0,0 @@
-Tests for regexp with multi-byte encoding and various magic settings.
-Test matchstr() with a count and multi-byte chars.
-See test99 for exactly the same test with re=2.
-
-STARTTEST
-:so mbyte.vim
-:set encoding=utf-8 termencoding=latin1
-:set re=1
-/^1
-/a*b\{2}c\+/e
-x/\Md\*e\{2}f\+/e
-x:set nomagic
-/g\*h\{2}i\+/e
-x/\mj*k\{2}l\+/e
-x/\vm*n{2}o+/e
-x/\V^aa$
-x:set magic
-/\v(a)(b)\2\1\1/e
-x/\V[ab]\(\[xy]\)\1
-x:" Now search for multi-byte without composing char
-/ม
-x:" Now search for multi-byte with composing char
-/ม่
-x:" find word by change of word class
-/ち\<カヨ\>は
-x:" Test \%u, [\u] and friends
-/\%u20ac
-x/[\u4f7f\u5929]\+
-x/\%U12345678
-x/[\U1234abcd\u1234\uabcd]
-x/\%d21879b
-x/ [[=A=]]* [[=B=]]* [[=C=]]* [[=D=]]* [[=E=]]* [[=F=]]* [[=G=]]* [[=H=]]* [[=I=]]* [[=J=]]* [[=K=]]* [[=L=]]* [[=M=]]* [[=N=]]* [[=O=]]* [[=P=]]* [[=Q=]]* [[=R=]]* [[=S=]]* [[=T=]]* [[=U=]]* [[=V=]]* [[=W=]]* [[=X=]]* [[=Y=]]* [[=Z=]]*/e
-x/ [[=a=]]* [[=b=]]* [[=c=]]* [[=d=]]* [[=e=]]* [[=f=]]* [[=g=]]* [[=h=]]* [[=i=]]* [[=j=]]* [[=k=]]* [[=l=]]* [[=m=]]* [[=n=]]* [[=o=]]* [[=p=]]* [[=q=]]* [[=r=]]* [[=s=]]* [[=t=]]* [[=u=]]* [[=v=]]* [[=w=]]* [[=x=]]* [[=y=]]* [[=z=]]*/e
-x:" Test backwards search from a multi-byte char
-/x
-x?.
-x:let @w=':%s#comb[i]nations#œ̄ṣ́m̥̄ᾱ̆́#g'
-:@w
-:?^1?,$w! test.out
-:e! test.out
-G:put =matchstr(\"אבגד\", \".\", 0, 2) " ב
-:put =matchstr(\"אבגד\", \"..\", 0, 2) " בג
-:put =matchstr(\"אבגד\", \".\", 0, 0) " א
-:put =matchstr(\"אבגד\", \".\", 4, -1) " ג
-:new
-:$put =['dog(a', 'cat(']
-/(/e+
-"ayn:bd!
-:$put =''
-G"ap
-:w!
-:qa!
-ENDTEST
-
-1 a aa abb abbccc
-2 d dd dee deefff
-3 g gg ghh ghhiii
-4 j jj jkk jkklll
-5 m mm mnn mnnooo
-6 x ^aa$ x
-7 (a)(b) abbaa
-8 axx [ab]xx
-9 หม่x อมx
-a อมx หม่x
-b ちカヨは
-c x ¬€x
-d 天使x
-e ������y
-f ������z
-g a啷bb
-h AÀÁÂÃÄÅĀĂĄǍǞǠẢ BḂḆ CÇĆĈĊČ DĎĐḊḎḐ EÈÉÊËĒĔĖĘĚẺẼ FḞ GĜĞĠĢǤǦǴḠ HĤĦḢḦḨ IÌÍÎÏĨĪĬĮİǏỈ JĴ KĶǨḰḴ LĹĻĽĿŁḺ MḾṀ NÑŃŅŇṄṈ OÒÓÔÕÖØŌŎŐƠǑǪǬỎ PṔṖ Q RŔŖŘṘṞ SŚŜŞŠṠ TŢŤŦṪṮ UÙÚÛÜŨŪŬŮŰŲƯǓỦ VṼ WŴẀẂẄẆ XẊẌ YÝŶŸẎỲỶỸ ZŹŻŽƵẐẔ
-i aàáâãäåāăąǎǟǡả bḃḇ cçćĉċč dďđḋḏḑ eèéêëēĕėęěẻẽ fḟ gĝğġģǥǧǵḡ hĥħḣḧḩẖ iìíîïĩīĭįǐỉ jĵǰ kķǩḱḵ lĺļľŀłḻ mḿṁ nñńņňʼnṅṉ oòóôõöøōŏőơǒǫǭỏ pṕṗ q rŕŗřṙṟ sśŝşšṡ tţťŧṫṯẗ uùúûüũūŭůűųưǔủ vṽ wŵẁẃẅẇẘ xẋẍ yýÿŷẏẙỳỷỹ zźżžƶẑẕ
-j 0123❤x
-k combinations
diff --git a/src/nvim/testdir/test44.ok b/src/nvim/testdir/test44.ok
deleted file mode 100644
index d9a1206cc2..0000000000
--- a/src/nvim/testdir/test44.ok
+++ /dev/null
@@ -1,26 +0,0 @@
-1 a aa abb abbcc
-2 d dd dee deeff
-3 g gg ghh ghhii
-4 j jj jkk jkkll
-5 m mm mnn mnnoo
-6 x aa$ x
-7 (a)(b) abba
-8 axx ab]xx
-9 หม่x อx
-a อมx หx
-b カヨは
-c x ¬x
-d 使x
-e y
-f z
-g abb
-h AÀÁÂÃÄÅĀĂĄǍǞǠẢ BḂḆ CÇĆĈĊČ DĎĐḊḎḐ EÈÉÊËĒĔĖĘĚẺẼ FḞ GĜĞĠĢǤǦǴḠ HĤĦḢḦḨ IÌÍÎÏĨĪĬĮİǏỈ JĴ KĶǨḰḴ LĹĻĽĿŁḺ MḾṀ NÑŃŅŇṄṈ OÒÓÔÕÖØŌŎŐƠǑǪǬỎ PṔṖ Q RŔŖŘṘṞ SŚŜŞŠṠ TŢŤŦṪṮ UÙÚÛÜŨŪŬŮŰŲƯǓỦ VṼ WŴẀẂẄẆ XẊẌ YÝŶŸẎỲỶỸ ZŹŻŽƵẐ
-i aàáâãäåāăąǎǟǡả bḃḇ cçćĉċč dďđḋḏḑ eèéêëēĕėęěẻẽ fḟ gĝğġģǥǧǵḡ hĥħḣḧḩẖ iìíîïĩīĭįǐỉ jĵǰ kķǩḱḵ lĺļľŀłḻ mḿṁ nñńņňʼnṅṉ oòóôõöøōŏőơǒǫǭỏ pṕṗ q rŕŗřṙṟ sśŝşšṡ tţťŧṫṯẗ uùúûüũūŭůűųưǔủ vṽ wŵẁẃẅẇẘ xẋẍ yýÿŷẏẙỳỷỹ zźżžƶẑ
-j 012❤
-k œ̄ṣ́m̥̄ᾱ̆́
-ב
-בג
-א
-ג
-a
-cat(
diff --git a/src/nvim/testdir/test99.in b/src/nvim/testdir/test99.in
deleted file mode 100644
index 32bc68cce4..0000000000
--- a/src/nvim/testdir/test99.in
+++ /dev/null
@@ -1,68 +0,0 @@
-Tests for regexp with multi-byte encoding and various magic settings.
-Test matchstr() with a count and multi-byte chars.
-See test44 for exactly the same test with re=1.
-
-STARTTEST
-:so mbyte.vim
-:set encoding=utf-8 termencoding=latin1
-:set re=2
-/^1
-/a*b\{2}c\+/e
-x/\Md\*e\{2}f\+/e
-x:set nomagic
-/g\*h\{2}i\+/e
-x/\mj*k\{2}l\+/e
-x/\vm*n{2}o+/e
-x/\V^aa$
-x:set magic
-/\v(a)(b)\2\1\1/e
-x/\V[ab]\(\[xy]\)\1
-x:" Now search for multi-byte without composing char
-/ม
-x:" Now search for multi-byte with composing char
-/ม่
-x:" find word by change of word class
-/ち\<カヨ\>は
-x:" Test \%u, [\u] and friends
-/\%u20ac
-x/[\u4f7f\u5929]\+
-x/\%U12345678
-x/[\U1234abcd\u1234\uabcd]
-x/\%d21879b
-x/ [[=A=]]* [[=B=]]* [[=C=]]* [[=D=]]* [[=E=]]* [[=F=]]* [[=G=]]* [[=H=]]* [[=I=]]* [[=J=]]* [[=K=]]* [[=L=]]* [[=M=]]* [[=N=]]* [[=O=]]* [[=P=]]* [[=Q=]]* [[=R=]]* [[=S=]]* [[=T=]]* [[=U=]]* [[=V=]]* [[=W=]]* [[=X=]]* [[=Y=]]* [[=Z=]]*/e
-x/ [[=a=]]* [[=b=]]* [[=c=]]* [[=d=]]* [[=e=]]* [[=f=]]* [[=g=]]* [[=h=]]* [[=i=]]* [[=j=]]* [[=k=]]* [[=l=]]* [[=m=]]* [[=n=]]* [[=o=]]* [[=p=]]* [[=q=]]* [[=r=]]* [[=s=]]* [[=t=]]* [[=u=]]* [[=v=]]* [[=w=]]* [[=x=]]* [[=y=]]* [[=z=]]*/e
-x:" Test backwards search from a multi-byte char
-/x
-x?.
-x:let @w=':%s#comb[i]nations#œ̄ṣ́m̥̄ᾱ̆́#g'
-:@w
-:?^1?,$w! test.out
-:e! test.out
-G:put =matchstr(\"אבגד\", \".\", 0, 2) " ב
-:put =matchstr(\"אבגד\", \"..\", 0, 2) " בג
-:put =matchstr(\"אבגד\", \".\", 0, 0) " א
-:put =matchstr(\"אבגד\", \".\", 4, -1) " ג
-:w!
-:qa!
-ENDTEST
-
-1 a aa abb abbccc
-2 d dd dee deefff
-3 g gg ghh ghhiii
-4 j jj jkk jkklll
-5 m mm mnn mnnooo
-6 x ^aa$ x
-7 (a)(b) abbaa
-8 axx [ab]xx
-9 หม่x อมx
-a อมx หม่x
-b ちカヨは
-c x ¬€x
-d 天使x
-e ������y
-f ������z
-g a啷bb
-h AÀÁÂÃÄÅĀĂĄǍǞǠẢ BḂḆ CÇĆĈĊČ DĎĐḊḎḐ EÈÉÊËĒĔĖĘĚẺẼ FḞ GĜĞĠĢǤǦǴḠ HĤĦḢḦḨ IÌÍÎÏĨĪĬĮİǏỈ JĴ KĶǨḰḴ LĹĻĽĿŁḺ MḾṀ NÑŃŅŇṄṈ OÒÓÔÕÖØŌŎŐƠǑǪǬỎ PṔṖ Q RŔŖŘṘṞ SŚŜŞŠṠ TŢŤŦṪṮ UÙÚÛÜŨŪŬŮŰŲƯǓỦ VṼ WŴẀẂẄẆ XẊẌ YÝŶŸẎỲỶỸ ZŹŻŽƵẐẔ
-i aàáâãäåāăąǎǟǡả bḃḇ cçćĉċč dďđḋḏḑ eèéêëēĕėęěẻẽ fḟ gĝğġģǥǧǵḡ hĥħḣḧḩẖ iìíîïĩīĭįǐỉ jĵǰ kķǩḱḵ lĺļľŀłḻ mḿṁ nñńņňʼnṅṉ oòóôõöøōŏőơǒǫǭỏ pṕṗ q rŕŗřṙṟ sśŝşšṡ tţťŧṫṯẗ uùúûüũūŭůűųưǔủ vṽ wŵẁẃẅẇẘ xẋẍ yýÿŷẏẙỳỷỹ zźżžƶẑẕ
-j 0123❤x
-k combinations
diff --git a/src/nvim/testdir/test99.ok b/src/nvim/testdir/test99.ok
deleted file mode 100644
index 0bd0b8ab73..0000000000
--- a/src/nvim/testdir/test99.ok
+++ /dev/null
@@ -1,24 +0,0 @@
-1 a aa abb abbcc
-2 d dd dee deeff
-3 g gg ghh ghhii
-4 j jj jkk jkkll
-5 m mm mnn mnnoo
-6 x aa$ x
-7 (a)(b) abba
-8 axx ab]xx
-9 หม่x อx
-a อมx หx
-b カヨは
-c x ¬x
-d 使x
-e y
-f z
-g abb
-h AÀÁÂÃÄÅĀĂĄǍǞǠẢ BḂḆ CÇĆĈĊČ DĎĐḊḎḐ EÈÉÊËĒĔĖĘĚẺẼ FḞ GĜĞĠĢǤǦǴḠ HĤĦḢḦḨ IÌÍÎÏĨĪĬĮİǏỈ JĴ KĶǨḰḴ LĹĻĽĿŁḺ MḾṀ NÑŃŅŇṄṈ OÒÓÔÕÖØŌŎŐƠǑǪǬỎ PṔṖ Q RŔŖŘṘṞ SŚŜŞŠṠ TŢŤŦṪṮ UÙÚÛÜŨŪŬŮŰŲƯǓỦ VṼ WŴẀẂẄẆ XẊẌ YÝŶŸẎỲỶỸ ZŹŻŽƵẐ
-i aàáâãäåāăąǎǟǡả bḃḇ cçćĉċč dďđḋḏḑ eèéêëēĕėęěẻẽ fḟ gĝğġģǥǧǵḡ hĥħḣḧḩẖ iìíîïĩīĭįǐỉ jĵǰ kķǩḱḵ lĺļľŀłḻ mḿṁ nñńņňʼnṅṉ oòóôõöøōŏőơǒǫǭỏ pṕṗ q rŕŗřṙṟ sśŝşšṡ tţťŧṫṯẗ uùúûüũūŭůűųưǔủ vṽ wŵẁẃẅẇẘ xẋẍ yýÿŷẏẙỳỷỹ zźżžƶẑ
-j 012❤
-k œ̄ṣ́m̥̄ᾱ̆́
-ב
-בג
-א
-ג
diff --git a/test/functional/legacy/044_099_regexp_multibyte_magic_spec.lua b/test/functional/legacy/044_099_regexp_multibyte_magic_spec.lua
new file mode 100644
index 0000000000..de628b0b52
--- /dev/null
+++ b/test/functional/legacy/044_099_regexp_multibyte_magic_spec.lua
@@ -0,0 +1,147 @@
+-- Tests for regexp with multi-byte encoding and various magic settings.
+-- Test matchstr() with a count and multi-byte chars.
+--
+-- This test contains both "test44" and "test99" from the old test suite.
+
+local helpers = require('test.functional.helpers')
+local feed, insert, source = helpers.feed, helpers.insert, helpers.source
+local clear, execute, expect = helpers.clear, helpers.execute, helpers.expect
+
+-- Runs the test protocol with the given 'regexpengine' setting. In the old test
+-- suite the test protocol was duplicated in test44 and test99, the only
+-- difference being the 'regexpengine' setting. We've extracted it here.
+local function run_test_with_regexpengine(regexpengine)
+  insert([[
+    1 a aa abb abbccc
+    2 d dd dee deefff
+    3 g gg ghh ghhiii
+    4 j jj jkk jkklll
+    5 m mm mnn mnnooo
+    6 x ^aa$ x
+    7 (a)(b) abbaa
+    8 axx [ab]xx
+    9 หม่x อมx
+    a อมx หม่x
+    b ちカヨは
+    c x ¬€x
+    d 天使x
+    e ������y
+    f ������z
+    g a啷bb
+    h AÀÁÂÃÄÅĀĂĄǍǞǠẢ BḂḆ CÇĆĈĊČ DĎĐḊḎḐ EÈÉÊËĒĔĖĘĚẺẼ FḞ GĜĞĠĢǤǦǴḠ HĤĦḢḦḨ IÌÍÎÏĨĪĬĮİǏỈ JĴ KĶǨḰḴ LĹĻĽĿŁḺ MḾṀ NÑŃŅŇṄṈ OÒÓÔÕÖØŌŎŐƠǑǪǬỎ PṔṖ Q RŔŖŘṘṞ SŚŜŞŠṠ TŢŤŦṪṮ UÙÚÛÜŨŪŬŮŰŲƯǓỦ VṼ WŴẀẂẄẆ XẊẌ YÝŶŸẎỲỶỸ ZŹŻŽƵẐẔ
+    i aàáâãäåāăąǎǟǡả bḃḇ cçćĉċč dďđḋḏḑ eèéêëēĕėęěẻẽ fḟ gĝğġģǥǧǵḡ hĥħḣḧḩẖ iìíîïĩīĭįǐỉ jĵǰ kķǩḱḵ lĺļľŀłḻ mḿṁ nñńņňʼnṅṉ oòóôõöøōŏőơǒǫǭỏ pṕṗ q rŕŗřṙṟ sśŝşšṡ tţťŧṫṯẗ uùúûüũūŭůűųưǔủ vṽ wŵẁẃẅẇẘ xẋẍ yýÿŷẏẙỳỷỹ zźżžƶẑẕ
+    j 0123❤x
+    k combinations]])
+
+  execute('set encoding=utf-8 termencoding=latin1')
+  execute('set re=' .. regexpengine)
+
+  -- Lines 1-8. Exercise regexp search with various magic settings. On each
+  -- line the character on which the cursor is expected to land is deleted.
+  feed('/^1<cr>')
+  feed([[/a*b\{2}c\+/e<cr>x]])
+  feed([[/\Md\*e\{2}f\+/e<cr>x]])
+  execute('set nomagic')
+  feed([[/g\*h\{2}i\+/e<cr>x]])
+  feed([[/\mj*k\{2}l\+/e<cr>x]])
+  feed([[/\vm*n{2}o+/e<cr>x]])
+  feed([[/\V^aa$<cr>x]])
+  execute('set magic')
+  feed([[/\v(a)(b)\2\1\1/e<cr>x]])
+  feed([[/\V[ab]\(\[xy]\)\1<cr>x]])
+
+  -- Line 9. Search for multi-byte character without combining character.
+  feed('/ม<cr>x')
+
+  -- Line a. Search for multi-byte character with combining character.
+  feed('/ม่<cr>x')
+
+  -- Line b. Find word by change of word class.
+  -- (The "<" character in this test step seemed to confuse our "feed" test
+  -- helper, which is why we've resorted to "execute" here.)
+  execute([[/ち\<カヨ\>は]])
+  feed('x')
+
+  -- Lines c-i. Test \%u, [\u], and friends.
+  feed([[/\%u20ac<cr>x]])
+  feed([[/[\u4f7f\u5929]\+<cr>x]])
+  feed([[/\%U12345678<cr>x]])
+  feed([[/[\U1234abcd\u1234\uabcd]<cr>x]])
+  feed([[/\%d21879b<cr>x]])
+  feed('/ [[=A=]]* [[=B=]]* [[=C=]]* [[=D=]]* [[=E=]]* [[=F=]]* ' ..
+    '[[=G=]]* [[=H=]]* [[=I=]]* [[=J=]]* [[=K=]]* [[=L=]]* [[=M=]]* ' ..
+    '[[=N=]]* [[=O=]]* [[=P=]]* [[=Q=]]* [[=R=]]* [[=S=]]* [[=T=]]* ' ..
+    '[[=U=]]* [[=V=]]* [[=W=]]* [[=X=]]* [[=Y=]]* [[=Z=]]*/e<cr>x')
+  feed('/ [[=a=]]* [[=b=]]* [[=c=]]* [[=d=]]* [[=e=]]* [[=f=]]* ' ..
+    '[[=g=]]* [[=h=]]* [[=i=]]* [[=j=]]* [[=k=]]* [[=l=]]* [[=m=]]* ' ..
+    '[[=n=]]* [[=o=]]* [[=p=]]* [[=q=]]* [[=r=]]* [[=s=]]* [[=t=]]* ' ..
+    '[[=u=]]* [[=v=]]* [[=w=]]* [[=x=]]* [[=y=]]* [[=z=]]*/e<cr>x')
+
+  -- Line j. Test backwards search from a multi-byte character.
+  feed('/x<cr>x')
+  feed('?.<cr>x')
+
+  -- Line k. Test substitution with combining characters by executing register
+  -- contents.
+  execute([[let @w=':%s#comb[i]nations#œ̄ṣ́m̥̄ᾱ̆́#g']])
+  execute('@w')
+
+  -- Additional tests. Test matchstr() with multi-byte characters.
+  feed('G')
+  execute([[put =matchstr(\"אבגד\", \".\", 0, 2)]])   -- ב
+  execute([[put =matchstr(\"אבגד\", \"..\", 0, 2)]])  -- בג
+  execute([[put =matchstr(\"אבגד\", \".\", 0, 0)]])   -- א
+  execute([[put =matchstr(\"אבגד\", \".\", 4, -1)]])  -- ג
+
+  -- Test that a search with "/e" offset wraps around at the end of the buffer.
+  execute('new')
+  execute([[$put =['dog(a', 'cat('] ]])
+  feed('/(/e+<cr>')
+  feed('"ayn')
+  execute('bd!')
+  execute([[$put ='']])
+  feed('G"ap')
+
+  -- Assert buffer contents.
+  expect([[
+    1 a aa abb abbcc
+    2 d dd dee deeff
+    3 g gg ghh ghhii
+    4 j jj jkk jkkll
+    5 m mm mnn mnnoo
+    6 x aa$ x
+    7 (a)(b) abba
+    8 axx ab]xx
+    9 หม่x อx
+    a อมx หx
+    b カヨは
+    c x ¬x
+    d 使x
+    e y
+    f z
+    g abb
+    h AÀÁÂÃÄÅĀĂĄǍǞǠẢ BḂḆ CÇĆĈĊČ DĎĐḊḎḐ EÈÉÊËĒĔĖĘĚẺẼ FḞ GĜĞĠĢǤǦǴḠ HĤĦḢḦḨ IÌÍÎÏĨĪĬĮİǏỈ JĴ KĶǨḰḴ LĹĻĽĿŁḺ MḾṀ NÑŃŅŇṄṈ OÒÓÔÕÖØŌŎŐƠǑǪǬỎ PṔṖ Q RŔŖŘṘṞ SŚŜŞŠṠ TŢŤŦṪṮ UÙÚÛÜŨŪŬŮŰŲƯǓỦ VṼ WŴẀẂẄẆ XẊẌ YÝŶŸẎỲỶỸ ZŹŻŽƵẐ
+    i aàáâãäåāăąǎǟǡả bḃḇ cçćĉċč dďđḋḏḑ eèéêëēĕėęěẻẽ fḟ gĝğġģǥǧǵḡ hĥħḣḧḩẖ iìíîïĩīĭįǐỉ jĵǰ kķǩḱḵ lĺļľŀłḻ mḿṁ nñńņňʼnṅṉ oòóôõöøōŏőơǒǫǭỏ pṕṗ q rŕŗřṙṟ sśŝşšṡ tţťŧṫṯẗ uùúûüũūŭůűųưǔủ vṽ wŵẁẃẅẇẘ xẋẍ yýÿŷẏẙỳỷỹ zźżžƶẑ
+    j 012❤
+    k œ̄ṣ́m̥̄ᾱ̆́
+    ב
+    בג
+    א
+    ג
+    a
+    cat(]])
+end
+
+describe('multi-byte regexp search with magic settings', function()
+  before_each(clear)
+
+  it('is working with regexpengine=1', function()
+    -- The old test44.
+    run_test_with_regexpengine(1)
+  end)
+
+  it('is working with regexpengine=2', function()
+    -- The old test99.
+    run_test_with_regexpengine(2)
+  end)
+end)