forked from TrueCloudLab/neoneo-go
c1b6738bdb
* 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
68 lines
1.7 KiB
Go
68 lines
1.7 KiB
Go
package stack
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import (
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"math/big"
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"testing"
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"github.com/stretchr/testify/assert"
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)
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// A simple test to ensure that by embedding the abstract interface
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// we immediately become a stack item, with the default values set to nil
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func TestInterfaceEmbedding(t *testing.T) {
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// Create an anonymous struct that embeds the abstractItem
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a := struct {
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*abstractItem
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}{
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&abstractItem{},
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}
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// Since interface checking can be done at compile time.
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// If he abstractItem did not implement all methods of our interface `Item`
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// Then any struct which embeds it, will also not implement the Item interface.
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// This test would then give errors, at compile time.
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var Items []Item
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Items = append(Items, a)
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// Default methods should give errors
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// Here we just need to test against one of the methods in the interface
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for _, element := range Items {
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x, err := element.Integer()
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assert.Nil(t, x)
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assert.NotNil(t, err, nil)
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}
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}
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// TestIntCasting is a simple test to test that the Integer method is overwritten
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// from the abstractItem
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func TestIntMethodOverride(t *testing.T) {
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testValues := []int64{0, 10, 200, 30, 90}
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var Items []Item
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// Convert a range of int64s into Stack Integers
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// Adding them into an array of StackItems
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for _, num := range testValues {
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stackInteger, err := NewInt(big.NewInt(num))
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if err != nil {
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t.Fail()
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}
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Items = append(Items, stackInteger)
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}
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// For each item, call the Integer method on the interface
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// Which should return an integer and no error
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// as the stack integer struct overrides that method
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for i, element := range Items {
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k, err := element.Integer()
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if err != nil {
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t.Fail()
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}
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if k.val.Cmp(big.NewInt(testValues[i])) != 0 {
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t.Fail()
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}
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}
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}
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