public void TestJsonNotExistsExpression()
{
var jsonExpressionString = @"
{
""key"": ""environment"",
""operator"":""NotExists""
}";
var expressions = JsonExpressionParser.Parse(jsonExpressionString);
var labels = new Dictionary <string, string>
{
["environment"] = LabelSelectorTester_Test.GenerateRandomString(),
};
var result = LabelSelectorTester.Test(labels, expressions);
Assert.IsFalse(result);
labels = new Dictionary <string, string>
{
};
result = LabelSelectorTester.Test(labels, expressions);
Assert.IsTrue(result);
}
public void TestJsonNotInExpression()
{
const int n = 10;
var randomValues = new List <string>();
for (var i = 0; i < n; i += 1)
{
var randomString = LabelSelectorTester_Test.GenerateRandomString();
randomValues.Add(randomString);
}
var jsonExpressionString = @"
{
""key"": ""environment"",
""operator"":""NotIn"",
""values"": [
" + string.Join(",\n", randomValues.Select(value => $@"""{value}""")) + @"
]
}";
var expressions = JsonExpressionParser.Parse(jsonExpressionString);
bool result;
Dictionary <string, string> labels;
foreach (var randomValue in randomValues)
{
labels = new Dictionary <string, string>
{
["environment"] = randomValue,
};
result = LabelSelectorTester.Test(labels, expressions);
Assert.IsFalse(result);
}
labels = new Dictionary <string, string>
{
["environment"] = LabelSelectorTester_Test.GenerateRandomString(),
};
result = LabelSelectorTester.Test(labels, expressions);
Assert.IsTrue(result);
}
static async Task Main(string[] args)
{
Console.WriteLine("Creating and seeding database...");
var options = new DbContextOptionsBuilder <TransactionContext>()
.UseSqlite("Data Source=transactions.db").Options;
using (var context = new TransactionContext(options))
{
await context.Database.EnsureDeletedAsync();
await context.Database.EnsureCreatedAsync();
context.DbTransactions.AddRange(Transaction.GetList(1000));
await context.SaveChangesAsync();
}
var optionsWithLog = new DbContextOptionsBuilder <TransactionContext>()
.UseSqlite("Data Source=transactions.db")
.UseLoggerFactory(loggerFactory).Options;
using (var context = new TransactionContext(optionsWithLog))
{
var count = await context.DbTransactions.CountAsync();
Console.WriteLine($"Verified insert count: {count}.");
Console.WriteLine("Parsing expression...");
var parser = new JsonExpressionParser();
var predicate = parser.ParseExpressionOf <Transaction>(
JsonDocument.Parse(
await File.ReadAllTextAsync("databaseRules.json")));
Console.WriteLine("Retrieving from database...");
var query = context.DbTransactions.Where(predicate)
.OrderBy(t => t.Id);
var results = await query.ToListAsync();
Console.WriteLine($"Retrieved {results.Count}");
Console.WriteLine("Sample:");
Console.WriteLine(results[0]);
}
}
