_test: add tests for -e argument (#165)

Refs #149

_test/install/binary_gopath/expected2.txt

@@ -0,0 +1,2 @@
+/root/target.go:8:10: e: add((1), 2)
+/root/target.go:9:10: e: add(1, (2))

_test/install/binary_gopath/test.bash

@@ -15,4 +15,7 @@ go get -v -u github.com/quasilyte/ruleguard-rules-test
 ./ruleguard -rules /root/rules.go /root/target.go &> actual.txt || true
 diff -u actual.txt /root/expected.txt
 
+./ruleguard -e 'm.Match(`$f($*_, ($x), $*_)`)' /root/target.go &> actual.txt || true
+diff -u actual.txt /root/expected2.txt
+
 echo SUCCESS

_test/install/binary_nogopath/expected2.txt

@@ -0,0 +1,2 @@
+/root/target.go:8:10: e: add((1), 2)
+/root/target.go:9:10: e: add(1, (2))

_test/install/binary_nogopath/test.bash

@@ -23,4 +23,7 @@ go get -v -u github.com/quasilyte/ruleguard-rules-test@master
 ./ruleguard -rules rules.go /root/target.go &> actual.txt || true
 diff -u actual.txt /root/expected.txt
 
+./ruleguard -e 'm.Match(`$f($*_, ($x), $*_)`)' /root/target.go &> actual.txt || true
+diff -u actual.txt /root/expected2.txt
+
 echo SUCCESS

_test/install/gitclone/expected5.txt

@@ -0,0 +1,2 @@
+/root/target.go:8:10: e: add((1), 2)
+/root/target.go:9:10: e: add(1, (2))

_test/install/gitclone/test.bash

@@ -22,4 +22,7 @@ diff -u actual.txt /root/expected3.txt
 ./go-ruleguard -enable 'testrules/boolExprSimplify' -rules /root/rules2.go /root/target.go &> actual.txt || true
 diff -u actual.txt /root/expected4.txt
 
+./go-ruleguard -e 'm.Match(`$f($*_, ($x), $*_)`)' /root/target.go &> actual.txt || true
+diff -u actual.txt /root/expected5.txt
+
 echo SUCCESS