neoneo-go/pkg/compiler/function_call_test.go

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package compiler_test
import (
"fmt"
"math/big"
"testing"
)
func TestSimpleFunctionCall(t *testing.T) {
src := `
package testcase
func Main() int {
x := 10
y := getSomeInteger()
return x + y
}
func getSomeInteger() int {
x := 10
return x
}
`
eval(t, src, big.NewInt(20))
}
func TestNotAssignedFunctionCall(t *testing.T) {
src := `
package testcase
func Main() int {
getSomeInteger()
getSomeInteger()
return 0
}
func getSomeInteger() int {
return 0
}
`
// disable stack checks because it is hard right now
// to distinguish between simple function call traversal
// and the same traversal inside an assignment.
2020-05-20 13:31:10 +00:00
evalWithoutStackChecks(t, src, big.NewInt(0))
}
func TestMultipleFunctionCalls(t *testing.T) {
src := `
package testcase
func Main() int {
x := 10
y := getSomeInteger()
return x + y
}
func getSomeInteger() int {
x := 10
y := getSomeOtherInt()
return x + y
}
func getSomeOtherInt() int {
x := 8
return x
}
`
eval(t, src, big.NewInt(28))
}
func TestFunctionCallWithArgs(t *testing.T) {
src := `
package testcase
func Main() int {
x := 10
y := getSomeInteger(x)
return y
}
func getSomeInteger(x int) int {
y := 8
return x + y
}
`
eval(t, src, big.NewInt(18))
}
func TestFunctionCallWithInterfaceType(t *testing.T) {
src := `
package testcase
func Main() interface{} {
x := getSomeInteger(10)
return x
}
func getSomeInteger(x interface{}) interface{} {
return x
}
`
eval(t, src, big.NewInt(10))
}
func TestFunctionCallMultiArg(t *testing.T) {
src := `
package testcase
func Main() int {
x := addIntegers(2, 4)
return x
}
func addIntegers(x int, y int) int {
return x + y
}
`
eval(t, src, big.NewInt(6))
}
func TestFunctionWithVoidReturn(t *testing.T) {
src := `
package testcase
func Main() int {
x := 2
getSomeInteger()
y := 4
return x + y
}
func getSomeInteger() { %s }
`
t.Run("EmptyBody", func(t *testing.T) {
src := fmt.Sprintf(src, "")
eval(t, src, big.NewInt(6))
})
t.Run("SingleReturn", func(t *testing.T) {
src := fmt.Sprintf(src, "return")
eval(t, src, big.NewInt(6))
})
}
func TestFunctionWithVoidReturnBranch(t *testing.T) {
src := `
package testcase
func Main() int {
x := %t
f(x)
return 2
}
func f(x bool) {
if x {
return
}
}
`
t.Run("ReturnBranch", func(t *testing.T) {
src := fmt.Sprintf(src, true)
eval(t, src, big.NewInt(2))
})
t.Run("NoReturn", func(t *testing.T) {
src := fmt.Sprintf(src, false)
eval(t, src, big.NewInt(2))
})
}
func TestFunctionWithMultipleArgumentNames(t *testing.T) {
src := `package foo
func Main() int {
return add(1, 2)
}
func add(a, b int) int {
return a + b
}`
eval(t, src, big.NewInt(3))
}