diff options
Diffstat (limited to 'vm')
| -rw-r--r-- | vm/vm_test.go | 104 |
1 files changed, 94 insertions, 10 deletions
diff --git a/vm/vm_test.go b/vm/vm_test.go index 8fa8e71..43333ad 100644 --- a/vm/vm_test.go +++ b/vm/vm_test.go @@ -3,6 +3,7 @@ package vm import ( "fmt" "log" + "reflect" "testing" ) @@ -61,7 +62,90 @@ var tests = []struct { {0, Exit}, }, start: 0, end: 1, mem: "[3]", -}, { // #01 -- Calling a function defined outside the VM. +}, { // #01 -- A simple subtraction. + code: [][]int64{ + {0, Push, 2}, + {0, Push, 3}, + {0, Sub}, + {0, Exit}, + }, + start: 0, end: 1, mem: "[1]", +}, { // #02 -- A simple multiplication. + code: [][]int64{ + {0, Push, 3}, + {0, Push, 2}, + {0, Mul}, + {0, Exit}, + }, + start: 0, end: 1, mem: "[6]", +}, { // #03 -- lower. + code: [][]int64{ + {0, Push, 3}, + {0, Push, 2}, + {0, Lower}, + {0, Exit}, + }, + start: 0, end: 1, mem: "[true]", +}, { // #04 -- greater. + code: [][]int64{ + {0, Push, 2}, + {0, Push, 3}, + {0, Greater}, + {0, Exit}, + }, + start: 0, end: 1, mem: "[true]", +}, { // #05 -- equal. + code: [][]int64{ + {0, Push, 2}, + {0, Push, 3}, + {0, Equal}, + {0, Exit}, + }, + start: 0, end: 1, mem: "[false]", +}, { // #06 -- equalSet. + code: [][]int64{ + {0, Push, 2}, + {0, Push, 3}, + {0, EqualSet}, + {0, Exit}, + }, + start: 0, end: 2, mem: "[2 false]", +}, { // #07 -- equalSet. + code: [][]int64{ + {0, Push, 3}, + {0, Push, 3}, + {0, EqualSet}, + {0, Exit}, + }, + start: 0, end: 1, mem: "[true]", +}, { // #08 not. + code: [][]int64{ + {0, Push, 3}, + {0, Push, 3}, + {0, Equal}, + {0, Not}, + {0, Exit}, + }, + start: 0, end: 1, mem: "[false]", +}, { // #09 pop. + code: [][]int64{ + {0, Push, 3}, + {0, Push, 2}, + {0, Pop, 1}, + {0, Exit}, + }, + start: 0, end: 1, mem: "[3]", +}, { // #10 -- Assign a variable. + sym: []Value{{Type: TypeOf(0), Data: reflect.ValueOf(0)}}, + code: [][]int64{ + {0, Grow, 1}, + {0, New, 2, 0}, + {0, Push, 2}, + {0, Assign, 1}, + {0, Exit}, + }, + start: 1, end: 2, mem: "[2]", +}, { // #11 -- Calling a function defined outside the VM. sym: []Value{ValueOf(fmt.Println), ValueOf("Hello")}, code: [][]int64{ {0, Dup, 0}, @@ -69,7 +153,7 @@ var tests = []struct { {0, Exit}, }, start: 1, end: 3, mem: "[6 <nil>]", -}, { // #02 -- Defining and calling a function in VM. +}, { // #12 -- Defining and calling a function in VM. code: [][]int64{ {0, Jump, 3}, // 0 {0, Push, 3}, // 1 @@ -79,7 +163,7 @@ var tests = []struct { {0, Exit}, // 5 }, start: 0, end: 1, mem: "[3]", -}, { // #03 -- Defining and calling a function in VM. +}, { // #13 -- Defining and calling a function in VM. code: [][]int64{ {0, Jump, 3}, // 0 {0, Push, 3}, // 1 @@ -90,7 +174,7 @@ var tests = []struct { {0, Exit}, // 6 }, start: 0, end: 1, mem: "[3]", -}, { // #04 -- Defining and calling a function in VM. +}, { // #14 -- Defining and calling a function in VM. code: [][]int64{ {0, Jump, 5}, // 0 {0, Push, 3}, // 1 @@ -103,20 +187,20 @@ var tests = []struct { {0, Exit}, // 8 }, start: 0, end: 1, mem: "[3]", -}, { // #05 -- Fibonacci numbers, hand written. Showcase recursivity. +}, { // #15 -- Fibonacci numbers, hand written. Showcase recursivity. code: [][]int64{ {0, Jump, 19}, // 0 {0, Push, 2}, // 2 [2] {0, Fdup, -2}, // 1 [2 i] {0, Lower}, // 3 [true/false] {0, JumpTrue, 13}, // 4 [], goto 17 - {0, Push, 2}, // 6 [i 2] - {0, Fdup, -2}, // 5 [i] + {0, Push, 2}, // 5 [i 2] + {0, Fdup, -2}, // 6 [i] {0, Sub}, // 7 [(i-2)] {0, Push, 1}, // 8 {0, Call}, // 9 [fib(i-2)] - {0, Push, 1}, // 11 [(i-2) i 1] - {0, Fdup, -2}, // 10 [fib(i-2) i] + {0, Push, 1}, // 10 [(i-2) i 1] + {0, Fdup, -2}, // 11 [fib(i-2) i] {0, Sub}, // 12 [(i-2) (i-1)] {0, Push, 1}, // 13 {0, Call}, // 14 [fib(i-2) fib(i-1)] @@ -130,7 +214,7 @@ var tests = []struct { {0, Exit}, // 22 }, start: 0, end: 1, mem: "[8]", -}, { // #06 -- Fibonacci with some immediate instructions. +}, { // #16 -- Fibonacci with some immediate instructions. code: [][]int64{ {0, Jump, 14}, // 0 {0, Fdup, -2}, // 1 [i] |