Add steps for generating binaries from mini go app

Signed-off-by: Tushar Goel <[email protected]>

README.rst

@@ -6,3 +6,11 @@ Go-Inspector
 - then change it to executable  ```chmod u+x src/go_inspector/bin/GoReSym_lin```
 - Install requirements and dependencies using ```make dev```
 - Use ```scancode --json-pp - --go-symbol <PATH> --verbose``` to get debug symbols.
+
+
+How to generate test binaries
+============================
+
+- Run `go tool dist list` to get all possible pairs of OSes and arches to compile the binary.
+- Then use a OS/arch pair like this ``GOOS=<OS> GOARCH=<arch> go build -o ./tests/data/app_exe ./tests/data/main.go``
+  to get compiled binary.

tests/data/main.go

@@ -0,0 +1,11 @@
+package main
+
+import (
+  "fmt"
+  "path/filepath"
+)
+
+func main() {
+  s := filepath.Join("a", "b", "c")
+  fmt.Println(s)
+}