morethantext-web/src/morethantext/old-mod.rs

399 lines
9.8 KiB
Rust

/*
use async_std::sync::{Arc, RwLock};
use std::{collections::HashMap, error::Error, fmt, str::FromStr};
#[derive(Debug)]
pub struct DBError {
detail: String,
source: Option<Box<DBError>>,
}
impl DBError {
fn new(detail: String) -> Self {
Self {
detail: detail.to_string(),
source: None,
}
}
}
impl fmt::Display for DBError {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
write!(f, "{}", &self.detail)
}
}
impl Error for DBError {
fn source(&self) -> Option<&(dyn Error + 'static)> {
match &self.source {
Some(err) => Some(err),
None => None,
}
}
}
#[derive(Clone, PartialEq)]
pub enum FieldType {
Table,
}
impl fmt::Display for FieldType {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
match self {
FieldType::Table => write!(f, "table"),
}
}
}
impl FromStr for FieldType {
type Err = DBError;
fn from_str(input: &str) -> Result<FieldType, Self::Err> {
match input {
"table" => Ok(FieldType::Table),
_ => Err(DBError::new(format!("field type {} does not exist", input))),
}
}
}
pub struct Table {
fields: Arc<RwLock<HashMap<String, FieldType>>>,
}
impl Table {
pub async fn new() -> Self {
Self {
fields: Arc::new(RwLock::new(HashMap::new())),
}
}
pub async fn update_field(&self, name: &str, ftype: &str) -> Result<(), Box<dyn Error>> {
let ftype = match FieldType::from_str(ftype) {
Ok(field) => field,
Err(err) => {
let mut error = DBError::new(format!("failed to add field {}", name));
error.source = Some(Box::new(err));
return Err(Box::new(error));
}
};
let mut fmap = self.fields.write().await;
match fmap.get(name) {
Some(_) => Err(Box::new(DBError::new(format!(
"field {} already exists",
name
)))),
None => {
fmap.insert(name.to_string(), ftype);
Ok(())
}
}
}
pub async fn fields(&self) -> HashMap<String, FieldType> {
let fmap = self.fields.read().await;
fmap.clone()
}
}
*/
use async_std::sync::{Arc, RwLock};
use std::collections::HashMap;
pub mod error;
mod fieldtype;
use error::MTTError;
use fieldtype::FieldType;
#[derive(Clone)]
pub struct MoreThanText;
impl MoreThanText {
pub async fn new() -> Self {
Self {}
}
pub async fn add_table(&self, name: &str) -> Table {
Table::new()
}
pub async fn get_table(&self, name: &str) -> Table {
Table::new()
}
}
#[derive(Clone, PartialEq)]
struct FieldDef;
pub struct Table {
fields: Arc<RwLock<HashMap<String, FieldDef>>>,
}
impl Table {
fn new() -> Self {
Self {
fields: Arc::new(RwLock::new(HashMap::new())),
}
}
async fn add_field(&self, name: &str) {
let mut field_defs = self.fields.write().await;
field_defs.insert(name.to_string(), FieldDef {});
}
async fn get_field(&self, name: &str) -> Option<FieldDef> {
let field_defs = self.fields.read().await;
match field_defs.get(name) {
Some(def) => Some(def.clone()),
None => None,
}
}
async fn new_record(&self) -> Record {
Record::new()
}
}
struct Record {
data: Arc<RwLock<HashMap<String, FieldType>>>,
}
impl Record {
fn new() -> Self {
Self {
data: Arc::new(RwLock::new(HashMap::new())),
}
}
/*
async fn update_field(&self, name: String, data: FieldType) {
let mut map = self.data.write().await;
map.insert(name, data);
}
async fn get_field(&self, name: &str) -> Option<FieldType> {
let map = self.data.read().await;
match map.get(name) {
Some(field) => Some(field.clone()),
None => None,
}
}
*/
}
#[cfg(test)]
mod databases {
use super::*;
#[async_std::test]
async fn new_database() {
MoreThanText::new().await;
}
async fn add_table() {
let db = MoreThanText::new().await;
let name = "table";
db.add_table(name).await;
db.get_table(name).await;
}
}
#[cfg(test)]
mod tables {
use super::*;
#[test]
fn new_table() {
Table::new();
}
#[async_std::test]
async fn add_field_definition() {
let tbl = Table::new();
let name = "field";
let expected = FieldDef {};
tbl.add_field(name).await;
let output = tbl.get_field(name).await.unwrap();
assert!(output == expected, "Did not return a field definition.");
}
#[async_std::test]
async fn missing_field_definition() {
let tbl = Table::new();
let output = tbl.get_field("missing").await;
assert!(
output == None,
"Should return None if field does not exist."
);
}
#[async_std::test]
async fn get_empty_record() {
let tbl = Table::new();
tbl.new_record().await;
}
}
#[cfg(test)]
mod records {
use super::*;
/*
#[async_std::test]
async fn update_fields() {
let rec = Record::new();
let name = "elephant";
let data = "";
let sstr = StaticString::new();
rec.update_field(name.to_string(), sstr).await;
let output = rec.get_field(name).await.unwrap();
assert!(
output.to_string() == data,
"\n\nGot: {}\nWant: {}\n\n",
output.to_string(),
data
)
}
#[async_std::test]
async fn empty_field() {
let rec = Record::new();
let name = "mull";
let output = rec.get_field(name).await;
assert!(output == None, "Should return an option.");
}
*/
}
/*
#[cfg(test)]
mod tables {
use super::*;
#[async_std::test]
async fn new_table() {
Table::new().await;
}
#[async_std::test]
async fn update_field() {
let table = Table::new().await;
let mut expected: HashMap<String, FieldType> = HashMap::new();
expected.insert("stan".to_string(), FieldType::Table);
expected.insert("lee".to_string(), FieldType::Table);
table.update_field("stan", "table").await.unwrap();
table.update_field("lee", "table").await.unwrap();
let output = table.fields().await;
assert!(output == expected, "Table did not get the fields added.");
}
#[async_std::test]
async fn add_bad_field() -> Result<(), String> {
let table = Table::new().await;
let name = "failure";
let bad_type = "ljksdbtt";
let expected = format!("failed to add field {}", name);
let source = format!("field type {} does not exist", bad_type);
match table.update_field(name, bad_type).await {
Ok(_) => Err("A bad field type should not return successfully".to_string()),
Err(err) => {
if format!("{}", err) != expected {
Err(format!("Got: '{}' - Want: '{}'", err, expected))
} else if format!("{}", err.source().unwrap()) != source {
Err(format!(
"Got: '{}' - Want: '{}'",
err.source().unwrap(),
source
))
} else {
Ok(())
}
}
}
}
#[async_std::test]
async fn add_duplicate_field() -> Result<(), String> {
let table = Table::new().await;
let name = "twice";
let expected = format!("field {} already exists", name);
table.update_field(name, "table").await.unwrap();
match table.update_field(name, "table").await {
Ok(_) => Err(format!("Cannot have two fields with named '{}'", name)),
Err(err) => {
if format!("{}", err) == expected {
Ok(())
} else {
Err(format!("Got: '{}' - Want: '{}'", err, expected))
}
}
}
}
}
#[cfg(test)]
mod databases {
use super::*;
#[async_std::test]
async fn new_database() {
MoreThanText::new().await;
}
#[async_std::test]
async fn add_table() {
let db = MoreThanText::new().await;
db.add_table("fred".to_string()).await;
}
}
#[cfg(test)]
mod fieldtypes {
use super::*;
fn get_field_map() -> HashMap<String, FieldType> {
let mut fields: HashMap<String, FieldType> = HashMap::new();
fields.insert("table".to_string(), FieldType::Table);
return fields;
}
#[test]
fn convert_to_string() {
for (key, value) in get_field_map().iter() {
assert!(
key == &value.to_string(),
"\n\nGot: {}\nWant: {}\n\n",
value.to_string(),
key
);
}
}
#[test]
fn convert_from_string() {
for (key, value) in get_field_map().iter() {
assert!(
&FieldType::from_str(key).unwrap() == value,
"\n\nDid not return a FieldType::{}",
key
);
}
}
#[test]
fn convert_from_string_error() -> Result<(), String> {
let ftype = "lkjsdfh";
let expected = format!("field type {} does not exist", ftype);
match FieldType::from_str(ftype) {
Ok(_) => Err(format!("Found field type {}", ftype)),
Err(err) => {
if format!("{}", err) == expected {
Ok(())
} else {
Err(format!("Got: '{}' - Want: '{}'", err, expected))
}
}
}
}
}
*/