he never published that “testament.” Once he recovered, he began to investigate personally. After he did, Stalin was acquitted.
Lenin never recovered from this... This testament came from the series of strokes that lead to his death
Stalin and Lenin had been working together to bring about the revolution for decades
Also I think you're seriously confused. Zinoviev was part of the Bolsheviks since it split with the Mensheviks in 1903. Same with Kamenev. Stalin joined in 1917. Hell, the first time he even met Lenin was in 1906. And he was in and out of prison until the revolution (he was only out of prison for a total of 2 years between 1908 and 1917) so there's no way he could have possibly been "working together to bring about the revolution for decades"
Furthermore Lenin was (once again) forced into exile in 1907. He wouldn't even return to Russia until April of 1917 (hence the "April Theses")
This is just a matter of basic dates. Like shit you could have simply looked up. Please don't rudely ask me to do my research when you can't even get the very basics right.
Next time you reply I hope you've at least learned to use Google