426 lines
9.9 KiB
Go
426 lines
9.9 KiB
Go
package commands
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import (
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"strings"
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"testing"
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"c65gm/internal/compiler"
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"c65gm/internal/preproc"
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)
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func TestAndCommand_WillHandle(t *testing.T) {
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cmd := &AndCommand{}
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tests := []struct {
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name string
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line string
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want bool
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}{
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{"old syntax WITH/GIVING", "AND a WITH b GIVING c", true},
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{"old syntax WITH/arrow", "AND a WITH b -> c", true},
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{"new syntax", "result = x & y", true},
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{"not AND", "ADD a TO b GIVING c", false},
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{"wrong param count", "AND a b c", false},
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{"empty", "", false},
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{"new syntax wrong op", "result = x + y", false},
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}
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for _, tt := range tests {
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t.Run(tt.name, func(t *testing.T) {
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line := preproc.Line{Text: tt.line, Kind: preproc.Source}
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got := cmd.WillHandle(line)
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if got != tt.want {
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t.Errorf("WillHandle() = %v, want %v", got, tt.want)
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}
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})
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}
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}
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func TestAndCommand_OldSyntax(t *testing.T) {
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tests := []struct {
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name string
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line string
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setupVars func(*compiler.SymbolTable)
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wantAsm []string
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wantErr bool
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}{
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{
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name: "byte AND byte -> byte (variables)",
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line: "AND a WITH b GIVING result",
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setupVars: func(st *compiler.SymbolTable) {
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st.AddVar("a", "", compiler.KindByte, 0xFF)
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st.AddVar("b", "", compiler.KindByte, 0x0F)
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st.AddVar("result", "", compiler.KindByte, 0)
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},
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wantAsm: []string{
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"\tlda a",
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"\tand b",
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"\tsta result",
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},
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},
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{
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name: "byte AND byte -> word",
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line: "AND a WITH b GIVING result",
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setupVars: func(st *compiler.SymbolTable) {
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st.AddVar("a", "", compiler.KindByte, 0xFF)
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st.AddVar("b", "", compiler.KindByte, 0x0F)
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st.AddVar("result", "", compiler.KindWord, 0)
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},
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wantAsm: []string{
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"\tlda a",
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"\tand b",
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"\tsta result",
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"\tlda #0",
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"\tand #0",
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"\tsta result+1",
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},
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},
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{
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name: "word AND word -> word",
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line: "AND x WITH y GIVING result",
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setupVars: func(st *compiler.SymbolTable) {
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st.AddVar("x", "", compiler.KindWord, 0x1234)
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st.AddVar("y", "", compiler.KindWord, 0x0F0F)
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st.AddVar("result", "", compiler.KindWord, 0)
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},
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wantAsm: []string{
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"\tlda x",
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"\tand y",
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"\tsta result",
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"\tlda x+1",
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"\tand y+1",
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"\tsta result+1",
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},
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},
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{
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name: "byte AND literal -> byte",
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line: "AND a WITH $F0 GIVING result",
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setupVars: func(st *compiler.SymbolTable) {
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st.AddVar("a", "", compiler.KindByte, 0xFF)
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st.AddVar("result", "", compiler.KindByte, 0)
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},
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wantAsm: []string{
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"\tlda a",
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"\tand #$f0",
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"\tsta result",
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},
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},
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{
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name: "literal AND byte -> byte",
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line: "AND 255 WITH b GIVING result",
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setupVars: func(st *compiler.SymbolTable) {
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st.AddVar("b", "", compiler.KindByte, 0x0F)
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st.AddVar("result", "", compiler.KindByte, 0)
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},
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wantAsm: []string{
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"\tlda #$ff",
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"\tand b",
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"\tsta result",
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},
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},
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{
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name: "constant folding: 255 AND 15 -> byte",
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line: "AND 255 WITH 15 GIVING result",
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setupVars: func(st *compiler.SymbolTable) {
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st.AddVar("result", "", compiler.KindByte, 0)
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},
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wantAsm: []string{
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"\tlda #$0f",
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"\tsta result",
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},
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},
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{
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name: "constant folding: $FFFF AND $0F0F -> word",
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line: "AND $FFFF WITH $0F0F GIVING result",
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setupVars: func(st *compiler.SymbolTable) {
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st.AddVar("result", "", compiler.KindWord, 0)
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},
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wantAsm: []string{
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"\tlda #$0f",
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"\tsta result",
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"\tlda #$0f",
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"\tsta result+1",
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},
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},
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{
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name: "arrow syntax",
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line: "AND a WITH b -> result",
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setupVars: func(st *compiler.SymbolTable) {
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st.AddVar("a", "", compiler.KindByte, 0)
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st.AddVar("b", "", compiler.KindByte, 0)
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st.AddVar("result", "", compiler.KindByte, 0)
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},
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wantAsm: []string{
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"\tlda a",
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"\tand b",
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"\tsta result",
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},
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},
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{
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name: "word AND byte -> byte",
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line: "AND wval WITH bval GIVING result",
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setupVars: func(st *compiler.SymbolTable) {
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st.AddVar("wval", "", compiler.KindWord, 0x1234)
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st.AddVar("bval", "", compiler.KindByte, 0xFF)
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st.AddVar("result", "", compiler.KindByte, 0)
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},
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wantAsm: []string{
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"\tlda wval",
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"\tand bval",
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"\tsta result",
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},
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},
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{
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name: "word AND byte -> word",
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line: "AND wval WITH bval GIVING result",
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setupVars: func(st *compiler.SymbolTable) {
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st.AddVar("wval", "", compiler.KindWord, 0x1234)
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st.AddVar("bval", "", compiler.KindByte, 0xFF)
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st.AddVar("result", "", compiler.KindWord, 0)
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},
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wantAsm: []string{
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"\tlda wval",
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"\tand bval",
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"\tsta result",
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"\tlda wval+1",
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"\tand #0",
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"\tsta result+1",
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},
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},
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{
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name: "error: unknown destination variable",
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line: "AND a WITH b GIVING unknown",
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setupVars: func(st *compiler.SymbolTable) {
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st.AddVar("a", "", compiler.KindByte, 0)
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st.AddVar("b", "", compiler.KindByte, 0)
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},
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wantErr: true,
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},
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{
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name: "error: wrong separator",
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line: "AND a TO b GIVING result",
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setupVars: func(st *compiler.SymbolTable) {
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st.AddVar("a", "", compiler.KindByte, 0)
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st.AddVar("b", "", compiler.KindByte, 0)
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st.AddVar("result", "", compiler.KindByte, 0)
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},
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wantErr: true,
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},
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{
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name: "error: cannot assign to constant",
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line: "AND a WITH b GIVING MAXVAL",
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setupVars: func(st *compiler.SymbolTable) {
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st.AddVar("a", "", compiler.KindByte, 0)
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st.AddVar("b", "", compiler.KindByte, 0)
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st.AddConst("MAXVAL", "", compiler.KindByte, 255)
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},
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wantErr: true,
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},
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}
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for _, tt := range tests {
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t.Run(tt.name, func(t *testing.T) {
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ctx := compiler.NewCompilerContext(&preproc.Pragma{})
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tt.setupVars(ctx.SymbolTable)
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cmd := &AndCommand{}
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line := preproc.Line{Text: tt.line, Kind: preproc.Source}
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err := cmd.Interpret(line, ctx)
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if tt.wantErr {
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if err == nil {
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t.Error("expected error, got nil")
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}
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return
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}
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if err != nil {
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t.Fatalf("Interpret() error = %v", err)
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}
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asm, err := cmd.Generate(ctx)
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if err != nil {
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t.Fatalf("Generate() error = %v", err)
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}
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if !equalAsm(asm, tt.wantAsm) {
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t.Errorf("Generate() mismatch\ngot:\n%s\nwant:\n%s",
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strings.Join(asm, "\n"),
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strings.Join(tt.wantAsm, "\n"))
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}
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})
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}
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}
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func TestAndCommand_NewSyntax(t *testing.T) {
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tests := []struct {
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name string
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line string
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setupVars func(*compiler.SymbolTable)
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wantAsm []string
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wantErr bool
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}{
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{
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name: "byte & byte -> byte",
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line: "result = a & b",
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setupVars: func(st *compiler.SymbolTable) {
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st.AddVar("a", "", compiler.KindByte, 0xFF)
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st.AddVar("b", "", compiler.KindByte, 0x0F)
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st.AddVar("result", "", compiler.KindByte, 0)
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},
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wantAsm: []string{
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"\tlda a",
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"\tand b",
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"\tsta result",
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},
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},
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{
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name: "byte & byte -> word",
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line: "result = a & b",
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setupVars: func(st *compiler.SymbolTable) {
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st.AddVar("a", "", compiler.KindByte, 0xFF)
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st.AddVar("b", "", compiler.KindByte, 0x0F)
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st.AddVar("result", "", compiler.KindWord, 0)
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},
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wantAsm: []string{
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"\tlda a",
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"\tand b",
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"\tsta result",
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"\tlda #0",
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"\tand #0",
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"\tsta result+1",
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},
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},
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{
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name: "word & word -> word",
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line: "result = x & y",
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setupVars: func(st *compiler.SymbolTable) {
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st.AddVar("x", "", compiler.KindWord, 0x1234)
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st.AddVar("y", "", compiler.KindWord, 0x0F0F)
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st.AddVar("result", "", compiler.KindWord, 0)
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},
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wantAsm: []string{
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"\tlda x",
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"\tand y",
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"\tsta result",
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"\tlda x+1",
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"\tand y+1",
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"\tsta result+1",
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},
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},
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{
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name: "variable & literal",
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line: "result = a & $F0",
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setupVars: func(st *compiler.SymbolTable) {
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st.AddVar("a", "", compiler.KindByte, 0xFF)
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st.AddVar("result", "", compiler.KindByte, 0)
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},
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wantAsm: []string{
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"\tlda a",
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"\tand #$f0",
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"\tsta result",
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},
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},
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{
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name: "constant folding",
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line: "result = 255 & 15",
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setupVars: func(st *compiler.SymbolTable) {
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st.AddVar("result", "", compiler.KindByte, 0)
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},
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wantAsm: []string{
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"\tlda #$0f",
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"\tsta result",
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},
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},
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{
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name: "constant folding word",
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line: "result = $FFFF & $1234",
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setupVars: func(st *compiler.SymbolTable) {
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st.AddVar("result", "", compiler.KindWord, 0)
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},
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wantAsm: []string{
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"\tlda #$34",
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"\tsta result",
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"\tlda #$12",
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"\tsta result+1",
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},
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},
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{
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name: "using constant in expression",
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line: "result = a & MASK",
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setupVars: func(st *compiler.SymbolTable) {
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st.AddVar("a", "", compiler.KindByte, 0xFF)
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st.AddConst("MASK", "", compiler.KindByte, 0xF0)
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st.AddVar("result", "", compiler.KindByte, 0)
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},
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wantAsm: []string{
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"\tlda a",
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"\tand #$f0",
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"\tsta result",
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},
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},
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{
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name: "error: unknown destination",
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line: "unknown = a & b",
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setupVars: func(st *compiler.SymbolTable) {
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st.AddVar("a", "", compiler.KindByte, 0)
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st.AddVar("b", "", compiler.KindByte, 0)
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},
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wantErr: true,
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},
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{
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name: "error: wrong operator",
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line: "result = a + b",
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setupVars: func(st *compiler.SymbolTable) {
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st.AddVar("a", "", compiler.KindByte, 0)
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st.AddVar("b", "", compiler.KindByte, 0)
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st.AddVar("result", "", compiler.KindByte, 0)
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},
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wantErr: true,
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},
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}
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for _, tt := range tests {
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t.Run(tt.name, func(t *testing.T) {
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ctx := compiler.NewCompilerContext(&preproc.Pragma{})
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tt.setupVars(ctx.SymbolTable)
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cmd := &AndCommand{}
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line := preproc.Line{Text: tt.line, Kind: preproc.Source}
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err := cmd.Interpret(line, ctx)
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if tt.wantErr {
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if err == nil {
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t.Error("expected error, got nil")
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}
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return
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}
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if err != nil {
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t.Fatalf("Interpret() error = %v", err)
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}
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asm, err := cmd.Generate(ctx)
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if err != nil {
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t.Fatalf("Generate() error = %v", err)
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}
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if !equalAsm(asm, tt.wantAsm) {
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t.Errorf("Generate() mismatch\ngot:\n%s\nwant:\n%s",
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strings.Join(asm, "\n"),
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strings.Join(tt.wantAsm, "\n"))
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}
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})
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}
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}
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// equalAsm compares two assembly slices for equality
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func equalAsm(a, b []string) bool {
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if len(a) != len(b) {
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return false
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}
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for i := range a {
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if a[i] != b[i] {
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return false
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}
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}
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return true
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}
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