public void MissingEnvironmentVariablesAreIgnored()
{
// arrange
var mapping = new Dictionary <string, string>
{
["key1"] = "Foo:Bar:Baz",
["key2"] = "Foo:Bar:Qux",
["key3"] = "ConnectionStrings:Default",
};
var environmentVariables = new Hashtable
{
["key2"] = "Bar",
};
// act
var provider = new EnvironmentAliasesConfigurationProvider(mapping);
provider.Load(environmentVariables);
// assert
var keyCount = provider.GetChildKeys(Enumerable.Empty <string>(), parentPath: null).Count();
Assert.Equal(1, keyCount);
Assert.True(provider.TryGet("Foo:Bar:Qux", out var value));
Assert.Equal("Bar", value);
}
public void DuplicateKeysWithDifferentCasing()
{
// arrange
var mapping = new Dictionary <string, string>
{
["key1"] = "Foo:Bar:Baz",
["key2"] = "Foo:Bar:Qux",
};
var environmentVariables = new Hashtable
{
["key1"] = "Foo value 1",
["Key1"] = "Foo value 2",
["kEY1"] = "Foo value 3",
};
// act
var provider = new EnvironmentAliasesConfigurationProvider(mapping);
provider.Load(environmentVariables);
// assert
var keyCount = provider.GetChildKeys(Enumerable.Empty <string>(), parentPath: null).Count();
Assert.Equal(1, keyCount);
Assert.True(provider.TryGet("Foo:Bar:Baz", out var value));
Assert.Equal("Foo value", value.Substring(0, 9));
}
public void MappingIsApplied()
{
// arrange
var mapping = new Dictionary <string, string>
{
["key1"] = "Foo:Bar:Baz",
["key2"] = "Foo:Bar:Qux",
["key3"] = "ConnectionStrings:Default",
};
var environmentVariables = new Hashtable
{
["key1"] = "Foo value",
["key2"] = "Bar value",
["key3"] = "Baz value",
};
// act
var provider = new EnvironmentAliasesConfigurationProvider(mapping);
provider.Load(environmentVariables);
// assert
Assert.True(provider.TryGet("Foo:Bar:Baz", out string value));
Assert.Equal("Foo value", value);
Assert.True(provider.TryGet("Foo:Bar:Qux", out value));
Assert.Equal("Bar value", value);
Assert.True(provider.TryGet("ConnectionStrings:Default", out value));
Assert.Equal("Baz value", value);
Assert.False(provider.TryGet("key1", out value));
Assert.False(provider.TryGet("key2", out value));
Assert.False(provider.TryGet("key3", out value));
}
public void EmptyEnvironmentVariablesReturnsEmptyConfiguration()
{
// arrange
var mapping = new Dictionary <string, string>
{
["key2"] = "Foo:Bar",
["key4"] = "Foo:Baz",
};
var environmentVariables = new Hashtable();
// act
var provider = new EnvironmentAliasesConfigurationProvider(mapping);
provider.Load(environmentVariables);
// assert
var keyCount = provider.GetChildKeys(Enumerable.Empty <string>(), parentPath: null).Count();
Assert.Equal(0, keyCount);
}
