neoneo-go/pkg/vm/stack/int_test.go

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VM: Add basic vm (#166) * VM:Add abstract stack item * VM: Add stackItems; Array, Boolean, Int and ByteArray * VM: Add tests for stack item * VM: first pass at Random Access Stack object * VM: Add Sub, Mul, Mod LSH, RSH * VM: moved test helper functions into separate file * VM: removed helper functions from stack_test.go * Add conversions for bytearray and Int stack items * Add instructions file for vm * - Add guide to stack readme - Add testReadInt64 * Add Builder * Refactor Int, Boolean, ByteArray conversion * Add Context stack Item * Add Invocation stack - convenience RAS * rename testhelper to test_helper * Move opcode file * - Add `Add` OpCode - Add Opcode Function map * - Add test for math `Add` opcode - basic opcode execution * Add popTwoIntegers convenience func * Add `SUB` Opcode * Export Context Read methods - Return errors where failable * - Add `Op` to handleOP func signature - Add PushNBytes OPcode * remove error on NewBoolean - Expose underlying with Getter on Boolean StackItem - Add Equals method for ByteArray * Make Next() method on Context failable, refactor peekContext and Peek * Add ExecuteOp, Step and Run methods on the VM * Add Equal Opcode * Add THROWIFNOT Opcode * Add RET Opcode * Refactor PushNBytes Opcode * refactor Add, Sub to return VMSTATE add popTwoByteArrays helper function * Add basic tests for vm * clarify vm states * Add astack * [VM] Pass ResultStack to the opcode handlers * [VM] refactor handlers to have rstack as argument * [Stack] - Change RemoveCurrentContext for PopCurrentContext - Add CopTo method to stack * [VM] Add Result stack Len check in simple run test * [VM] fix typo * [Peer/Stall] Change seconds to milliseconds in test
2019-03-18 21:40:21 +00:00
package stack
import (
"testing"
"github.com/stretchr/testify/assert"
)
func TestAdd(t *testing.T) {
a := testMakeStackInt(t, 10)
b := testMakeStackInt(t, 20)
expected := testMakeStackInt(t, 30)
c, err := a.Add(b)
assert.Nil(t, err)
assert.Equal(t, true, expected.Equal(c))
}
func TestSub(t *testing.T) {
a := testMakeStackInt(t, 30)
b := testMakeStackInt(t, 200)
expected := testMakeStackInt(t, 170)
c, err := b.Sub(a)
assert.Nil(t, err)
assert.Equal(t, true, expected.Equal(c))
}
func TestMul(t *testing.T) {
a := testMakeStackInt(t, 10)
b := testMakeStackInt(t, 20)
expected := testMakeStackInt(t, 200)
c, err := a.Mul(b)
assert.Nil(t, err)
assert.Equal(t, true, expected.Equal(c))
}
func TestMod(t *testing.T) {
a := testMakeStackInt(t, 10)
b := testMakeStackInt(t, 20)
expected := testMakeStackInt(t, 10)
c, err := a.Mod(b)
assert.Nil(t, err)
assert.Equal(t, true, expected.Equal(c))
}
func TestLsh(t *testing.T) {
a := testMakeStackInt(t, 23)
b := testMakeStackInt(t, 8)
expected := testMakeStackInt(t, 5888)
c, err := a.Lsh(b)
assert.Nil(t, err)
assert.Equal(t, true, expected.Equal(c))
}
func TestRsh(t *testing.T) {
a := testMakeStackInt(t, 128)
b := testMakeStackInt(t, 3)
expected := testMakeStackInt(t, 16)
c, err := a.Rsh(b)
assert.Nil(t, err)
assert.Equal(t, true, expected.Equal(c))
}
func TestByteArrConversion(t *testing.T) {
var num int64 = 100000
a := testMakeStackInt(t, num)
ba, err := a.ByteArray()
assert.Nil(t, err)
have, err := ba.Integer()
assert.Nil(t, err)
assert.Equal(t, num, have.val.Int64())
}