#86 Compiler splits main code and test code into two files using regex. Added...

#86 Compiler splits main code and test code into two files using regex. Added go test for testing and goimport for handling import syntax errors.

modules/compiler_v2/go_compiler_v2/go_compiler.go

@@ -4,9 +4,11 @@ import (
 	"compiler_V2/consts"
 	"compiler_V2/utils"
 	"os"
+	"regexp"
 )
 
 const fileName = "main.go"
+const testFileName = "main_test.go"
 
 type GoCompiler struct{}
 
@@ -27,19 +29,41 @@ func (gb *GoCompiler) CheckCompileErrors(srcCode []byte) ([]byte, error) {
 	utils.SetupTempFolders(consts.TempOutputDir)
 	defer utils.RemoveTempFolders(consts.TempOutputDir)
 
-	// Write code to file
-	err := os.WriteFile(consts.TempOutputDir+fileName, srcCode, 0644)
+	// Create regex to extract test functions from srcCode
+	re := regexp.MustCompile(`(?m)^func\s+(Test\w+)\s*\(t\s+\*testing\.T\)\s*{[\s\S]*?^}`)
+
+	// Get all test functions from srcCode
+	testFunctions := re.FindAllString(string(srcCode), -1)
+
+	// Remove the test code from the main code
+	nonTestContent := re.ReplaceAllString(string(srcCode), "")
+
+	// Write code to main file
+	err := os.WriteFile(consts.TempOutputDir+fileName, []byte(nonTestContent), 0644)
 	if err != nil {
 		return nil, err
 	}
-	// Init go mod and tidy
-	cmdString := "go mod init tempOutput && go mod tidy "
+
+	// Construct the content for the _test.go file.
+	testFileContent := "package main\n\n"
+	for _, match := range testFunctions {
+		testFileContent += match + "\n\n"
+	}
+
+	// Write code to test file, we need this since the tests are in the same file as the code
+	err2 := os.WriteFile(consts.TempOutputDir+testFileName, []byte(testFileContent), 0644)
+	if err2 != nil {
+		return nil, err2
+	}
+
+	// Init go mod, tidy (for dependencies) and goimports (for imports)
+	cmdString := "go mod init tempOutput && go mod tidy && goimports -w ."
 
 	// Run go build
 	cmdString += " && go build -o main " + fileName
 
 	// Run tests
-	cmdString += " && go test " + fileName
+	cmdString += " && go test -v "
 
 	cmd := utils.MakeCommand(cmdString)
 	cmd.Dir = consts.TempOutputDir