In webdriver.testing.jsunit, throw if the test suite is empty.
In webdriver.testing.jsunit, throw if the test suite is empty.

Previously, empty test suites would result in silent passes, meaning
incorrectly named tests or tests with syntax errors (which don't get
counted) would cause a false positive.

Signed-off-by: Jason Juang <f4aaa172232d2a12e4b3377b1081776beecf75b1@google.com>

lmtierney/selenium,joshuaduffy/selenium,Dude-X/selenium,krmahadevan/selenium,dibagga/selenium,titusfortner/selenium,markodolancic/selenium,valfirst/selenium,TikhomirovSergey/selenium,joshmgrant/selenium,titusfortner/selenium,mojwang/selenium,juangj/selenium,jsakamoto/selenium,mach6/selenium,Herst/selenium,Herst/selenium,HtmlUnit/selenium,Jarob22/selenium,xmhubj/selenium,bayandin/selenium,dibagga/selenium,Ardesco/selenium,markodolancic/selenium,bayandin/selenium,xsyntrex/selenium,alb-i986/selenium,xsyntrex/selenium,Herst/selenium,kalyanjvn1/selenium,jabbrwcky/selenium,SeleniumHQ/selenium,chrisblock/selenium,mojwang/selenium,joshuaduffy/selenium,sag-enorman/selenium,titusfortner/selenium,HtmlUnit/selenium,mojwang/selenium,joshbruning/selenium,Tom-Trumper/selenium,Tom-Trumper/selenium,DrMarcII/selenium,joshmgrant/selenium,carlosroh/selenium,xsyntrex/selenium,oddui/selenium,Jarob22/selenium,Ardesco/selenium,gurayinan/selenium,alb-i986/selenium,oddui/selenium,tbeadle/selenium,joshuaduffy/selenium,joshbruning/selenium,valfirst/selenium,tbeadle/selenium,gurayinan/selenium,twalpole/selenium,SeleniumHQ/selenium,DrMarcII/selenium,lmtierney/selenium,chrisblock/selenium,krmahadevan/selenium,uchida/selenium,TikhomirovSergey/selenium,jabbrwcky/selenium,Dude-X/selenium,chrisblock/selenium,markodolancic/selenium,davehunt/selenium,TikhomirovSergey/selenium,Herst/selenium,sankha93/selenium,Jarob22/selenium,xmhubj/selenium,kalyanjvn1/selenium,juangj/selenium,tbeadle/selenium,5hawnknight/selenium,Jarob22/selenium,titusfortner/selenium,joshuaduffy/selenium,markodolancic/selenium,alb-i986/selenium,kalyanjvn1/selenium,titusfortner/selenium,krmahadevan/selenium,mach6/selenium,alb-i986/selenium,kalyanjvn1/selenium,lmtierney/selenium,carlosroh/selenium,sankha93/selenium,GorK-ChO/selenium,uchida/selenium,tbeadle/selenium,Ardesco/selenium,krmahadevan/selenium,p0deje/selenium,mach6/selenium,jsakamoto/selenium,titusfortner/selenium,p0deje/selenium,joshbruning/selenium,juangj/selenium,TikhomirovSergey/selenium,Tom-Trumper/selenium,Tom-Trumper/selenium,dibagga/selenium,asolntsev/selenium,bayandin/selenium,jsakamoto/selenium,oddui/selenium,DrMarcII/selenium,p0deje/selenium,chrisblock/selenium,HtmlUnit/selenium,TikhomirovSergey/selenium,krmahadevan/selenium,uchida/selenium,valfirst/selenium,5hawnknight/selenium,dibagga/selenium,DrMarcII/selenium,carlosroh/selenium,xmhubj/selenium,krmahadevan/selenium,DrMarcII/selenium,Ardesco/selenium,SeleniumHQ/selenium,joshmgrant/selenium,DrMarcII/selenium,mach6/selenium,mach6/selenium,HtmlUnit/selenium,gurayinan/selenium,valfirst/selenium,oddui/selenium,joshuaduffy/selenium,Dude-X/selenium,tbeadle/selenium,xsyntrex/selenium,asashour/selenium,xsyntrex/selenium,valfirst/selenium,GorK-ChO/selenium,twalpole/selenium,joshmgrant/selenium,valfirst/selenium,5hawnknight/selenium,uchida/selenium,tbeadle/selenium,asolntsev/selenium,tbeadle/selenium,Tom-Trumper/selenium,HtmlUnit/selenium,xmhubj/selenium,carlosroh/selenium,Tom-Trumper/selenium,HtmlUnit/selenium,uchida/selenium,asashour/selenium,dibagga/selenium,asolntsev/selenium,kalyanjvn1/selenium,asolntsev/selenium,bayandin/selenium,jabbrwcky/selenium,jabbrwcky/selenium,asashour/selenium,5hawnknight/selenium,markodolancic/selenium,valfirst/selenium,jsakamoto/selenium,Tom-Trumper/selenium,xsyntrex/selenium,mojwang/selenium,krmahadevan/selenium,SeleniumHQ/selenium,asolntsev/selenium,valfirst/selenium,jsakamoto/selenium,GorK-ChO/selenium,carlosroh/selenium,twalpole/selenium,twalpole/selenium,lmtierney/selenium,xsyntrex/selenium,SeleniumHQ/selenium,mojwang/selenium,gurayinan/selenium,davehunt/selenium,GorK-ChO/selenium,Tom-Trumper/selenium,TikhomirovSergey/selenium,davehunt/selenium,mach6/selenium,Ardesco/selenium,Jarob22/selenium,mach6/selenium,joshmgrant/selenium,joshuaduffy/selenium,tbeadle/selenium,jabbrwcky/selenium,Jarob22/selenium,asolntsev/selenium,HtmlUnit/selenium,kalyanjvn1/selenium,bayandin/selenium,p0deje/selenium,sankha93/selenium,gurayinan/selenium,jsakamoto/selenium,p0deje/selenium,asolntsev/selenium,juangj/selenium,davehunt/selenium,mojwang/selenium,oddui/selenium,davehunt/selenium,Dude-X/selenium,HtmlUnit/selenium,sankha93/selenium,sag-enorman/selenium,jsakamoto/selenium,Tom-Trumper/selenium,titusfortner/selenium,markodolancic/selenium,joshuaduffy/selenium,markodolancic/selenium,joshmgrant/selenium,5hawnknight/selenium,jabbrwcky/selenium,twalpole/selenium,oddui/selenium,twalpole/selenium,davehunt/selenium,asashour/selenium,asashour/selenium,chrisblock/selenium,Dude-X/selenium,mojwang/selenium,p0deje/selenium,carlosroh/selenium,GorK-ChO/selenium,joshmgrant/selenium,GorK-ChO/selenium,jabbrwcky/selenium,SeleniumHQ/selenium,alb-i986/selenium,markodolancic/selenium,dibagga/selenium,bayandin/selenium,Herst/selenium,alb-i986/selenium,xsyntrex/selenium,jabbrwcky/selenium,alb-i986/selenium,asashour/selenium,TikhomirovSergey/selenium,valfirst/selenium,GorK-ChO/selenium,Herst/selenium,twalpole/selenium,Jarob22/selenium,lmtierney/selenium,xsyntrex/selenium,asash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