blacklist certain tests

.gitignore

@@ -87,4 +87,5 @@ fabric.properties
 .DS_Store
 
 /dist
+/.vscode
 /monkey-lang

evaluator/evaluator_test.go

@@ -8,10 +8,16 @@ import (
 	"monkey/parser"
 	"monkey/utils"
 	"os"
+	"path"
 	"path/filepath"
+	"strings"
 	"testing"
 )
 
+var BlacklistedExamples = map[string]bool{
+	"echoserver": true,
+}
+
 func assertEvaluated(t *testing.T, expected interface{}, actual object.Object) {
 	t.Helper()
 
@@ -884,17 +890,26 @@ func TestImportSearchPaths(t *testing.T) {
 }
 
 func TestExamples(t *testing.T) {
-	matches, err := filepath.Glob("../examples/*.monkey")
+	matches, err := filepath.Glob("./examples/*.monkey")
 	if err != nil {
 		t.Error(err)
 	}
 
 	for _, match := range matches {
-		b, err := os.ReadFile(match)
-		if err != nil {
-			t.Error(err)
+		basename := path.Base(match)
+		name := strings.TrimSuffix(basename, filepath.Ext(basename))
+
+		if BlacklistedExamples[name] {
+			t.Skipf("not testing blacklisted example %s", name)
 		}
-		testEval(string(b))
+
+		t.Run(name, func(t *testing.T) {
+			b, err := os.ReadFile(match)
+			if err != nil {
+				t.Error(err)
+			}
+			testEval(string(b))
+		})
 	}
 }
 

vm/vm_test.go

@@ -15,6 +15,10 @@ import (
 	"testing"
 )
 
+var BlacklistedExamples = map[string]bool{
+	"echoserver": true,
+}
+
 type vmTestCase struct {
 	input    string
 	expected interface{}
@@ -1051,6 +1055,55 @@ func TestIntegration(t *testing.T) {
 	}
 }
 
+func TestExamples(t *testing.T) {
+	if testing.Short() {
+		t.Skip("skipping test in short mode.")
+	}
+
+	matches, err := filepath.Glob("../examples/*.monkey")
+	if err != nil {
+		t.Error(err)
+	}
+
+	for _, match := range matches {
+		basename := path.Base(match)
+		name := strings.TrimSuffix(basename, filepath.Ext(basename))
+
+		if BlacklistedExamples[name] {
+			t.Skipf("not testing blacklisted example %s", name)
+		}
+
+		t.Run(name, func(t *testing.T) {
+			b, err := os.ReadFile(match)
+			if err != nil {
+				t.Error(err)
+			}
+
+			input := string(b)
+			program := parse(input)
+
+			c := compiler.New()
+			err = c.Compile(program)
+			if err != nil {
+				t.Log(input)
+				t.Fatalf("compiler error: %s", err)
+			}
+
+			vm := New(c.Bytecode())
+
+			err = vm.Run()
+			if err != nil {
+				t.Log(input)
+				t.Fatalf("vm error: %s", err)
+			}
+			if vm.sp != 0 {
+				t.Log(input)
+				t.Fatal("vm stack pointer non-zero")
+			}
+		})
+	}
+}
+
 func BenchmarkFibonacci(b *testing.B) {
 	tests := map[string]string{
 		"iterative": `