public void TryGet_ReturnsResolvedValues()
{
var settings = new Dictionary <string, string>()
{
{ "key1", "value1" },
{ "key2", "${key1?notfound}" },
{ "key3", "${nokey?notfound}" },
{ "key4", "${nokey}" },
};
var builder = new ConfigurationBuilder();
builder.AddInMemoryCollection(settings);
var providers = builder.Build().Providers.ToList();
var holder = new PlaceholderResolverProvider(providers);
Assert.False(holder.TryGet("nokey", out var val));
Assert.True(holder.TryGet("key1", out val));
Assert.Equal("value1", val);
Assert.True(holder.TryGet("key2", out val));
Assert.Equal("value1", val);
Assert.True(holder.TryGet("key3", out val));
Assert.Equal("notfound", val);
Assert.True(holder.TryGet("key4", out val));
Assert.Equal("${nokey}", val);
}
public void Load_ReloadsConfiguration()
{
// Arrange
var appsettings1 = @"
{
""spring"": {
""bar"": {
""name"": ""myName""
},
""cloud"": {
""config"": {
""name"" : ""${spring:bar:name?noname}"",
}
}
}
}";
var appsettings2 = @"
{
""spring"": {
""bar"": {
""name"": ""newMyName""
},
""cloud"": {
""config"": {
""name"" : ""${spring:bar:name?noname}"",
}
}
}
}";
var path = TestHelpers.CreateTempFile(appsettings1);
string directory = Path.GetDirectoryName(path);
string fileName = Path.GetFileName(path);
ConfigurationBuilder configurationBuilder = new ConfigurationBuilder();
configurationBuilder.SetBasePath(directory);
configurationBuilder.AddJsonFile(fileName, false, true);
// Act and Assert
var config = configurationBuilder.Build();
var holder = new PlaceholderResolverProvider(config);
Assert.True(holder.TryGet("spring:cloud:config:name", out string val));
Assert.Equal("myName", val);
File.WriteAllText(path, appsettings2);
Thread.Sleep(1000); // There is a 250ms delay
holder.Load();
Assert.True(holder.TryGet("spring:cloud:config:name", out val));
Assert.Equal("newMyName", val);
}
public void GetReloadToken_ReturnsExpected_NotifyChanges()
{
var appsettings1 = @"
{
""spring"": {
""bar"": {
""name"": ""myName""
},
""cloud"": {
""config"": {
""name"" : ""${spring:bar:name?noname}"",
}
}
}
}";
var appsettings2 = @"
{
""spring"": {
""bar"": {
""name"": ""newMyName""
},
""cloud"": {
""config"": {
""name"" : ""${spring:bar:name?noname}"",
}
}
}
}";
using var sandbox = new Sandbox();
var path = sandbox.CreateFile("appsettings.json", appsettings1);
var directory = Path.GetDirectoryName(path);
var fileName = Path.GetFileName(path);
var configurationBuilder = new ConfigurationBuilder();
configurationBuilder.SetBasePath(directory);
configurationBuilder.AddJsonFile(fileName, false, true);
var config = configurationBuilder.Build();
var holder = new PlaceholderResolverProvider(new List <IConfigurationProvider>(config.Providers));
var token = holder.GetReloadToken();
Assert.NotNull(token);
Assert.False(token.HasChanged);
Assert.True(holder.TryGet("spring:cloud:config:name", out var val));
Assert.Equal("myName", val);
File.WriteAllText(path, appsettings2);
// There is a 250ms delay to detect change
// ASP.NET Core tests use 2000 Sleep for this kind of test
Thread.Sleep(2000);
Assert.True(token.HasChanged);
Assert.True(holder.TryGet("spring:cloud:config:name", out val));
Assert.Equal("newMyName", val);
}
public void GetReloadToken_ReturnsExpected_NotifyChanges()
{
// Arrange
var appsettings1 = @"
{
'spring': {
'bar': {
'name': 'myName'
},
'cloud': {
'config': {
'name' : '${spring:bar:name?noname}',
}
}
}
}";
var appsettings2 = @"
{
'spring': {
'bar': {
'name': 'newMyName'
},
'cloud': {
'config': {
'name' : '${spring:bar:name?noname}',
}
}
}
}";
var path = TestHelpers.CreateTempFile(appsettings1);
string directory = Path.GetDirectoryName(path);
string fileName = Path.GetFileName(path);
ConfigurationBuilder configurationBuilder = new ConfigurationBuilder();
configurationBuilder.SetBasePath(directory);
configurationBuilder.AddJsonFile(fileName, false, true);
// Act and Assert
var config = configurationBuilder.Build();
var holder = new PlaceholderResolverProvider(new List <IConfigurationProvider>(config.Providers));
var token = holder.GetReloadToken();
Assert.NotNull(token);
Assert.False(token.HasChanged);
Assert.True(holder.TryGet("spring:cloud:config:name", out string val));
Assert.Equal("myName", val);
File.WriteAllText(path, appsettings2);
// There is a 250ms delay to detect change
// ASP.NET Core tests use 2000 Sleep for this kind of test
Thread.Sleep(2000);
Assert.True(token.HasChanged);
Assert.True(holder.TryGet("spring:cloud:config:name", out val));
Assert.Equal("newMyName", val);
}