test: add failing tests for symbols textobj

test/test-textobj/Makefile

@@ -8,7 +8,7 @@ TESTS := $(TESTS:.vim=)
 
 .PHONY: test $(TESTS)
 
-test: $(TESTS)
+test: $(filter-out test-symbols,$(TESTS))
 
 $(TESTS):
 	@$(MYVIM) -u $@.vim

test/test-textobj/test-symbols.vim

@@ -0,0 +1,51 @@
+set nocompatible
+let &rtp = '../..,' . &rtp
+filetype plugin on
+syntax on
+
+set nomore
+
+setfiletype tex
+
+call vimtex#test#keys('dax',
+      \ ['$Cx_0^{1/2} y$'],
+      \ ['$x_0^{1/2} y$'])
+call vimtex#test#keys('ldax',
+      \ ['$Cx_0^{1/2} y$'],
+      \ ['$x_0^{1/2} y$'])
+call vimtex#test#keys('lldax',
+      \ ['$Cx_0^{1/2} y$'],
+      \ ['$C y$'])
+
+call vimtex#test#keys('dax',
+      \ ['$e^{a x^3}$'],
+      \ ['$$'])
+call vimtex#test#keys('fadax',
+      \ ['$e^{a x^3}$'],
+      \ ['$e^{ x^3}$'])
+call vimtex#test#keys('fxdax',
+      \ ['$e^{a x^3}$'],
+      \ ['$e^{a }$'])
+
+call vimtex#test#keys('2ldax',
+      \ ['$\sin_k^{a x^3}$'],
+      \ ['$$'])
+call vimtex#test#keys('fxdax',
+      \ ['$\sin_k^{a x^3}$'],
+      \ ['$\sin_k^{a }$'])
+
+call vimtex#test#keys('fadax',
+      \ ['$( asd )^{...}$'],
+      \ ['$( sd )^{...}$'])
+call vimtex#test#keys('f}dax',
+      \ ['$( asd )^{...}$'],
+      \ ['$$'])
+
+call vimtex#test#keys('fsdax',
+      \ ['$\left( asd \right)^{...}$'],
+      \ ['$\left( ad \right)^{...}$'])
+call vimtex#test#keys('fgdax',
+      \ ['$\left( asd \right)^{...}$'],
+      \ ['$$'])
+
+quit!