public void GetMongoConfiguration_GivenValidJson_ReturnsExpectedSettings()
{
// Arrange
var testFilePath = "anyFilePath.json";
var fakeFileSystem = Substitute.For <IFileSystem>();
fakeFileSystem
.ReadAllText(Arg.Any <string>())
.Returns(this.TestSettingsString);
fakeFileSystem
.FileExists(Arg.Any <string>())
.Returns(true);
fakeFileSystem
.GetFileExtension(testFilePath)
.Returns(".json");
var expected = this.TestSettings;
var classUnderTest = new SettingsLoader(fakeFileSystem);
// Act
var result =
classUnderTest.GetMongoConfiguration(testFilePath);
// Assert
Assert.Equal(expected, result, Comparers.HarnessConfigurationComparer());
}
public void GetMongoConfiguration_PassNullEmptyOrWhiteSpace_ThrowsSettingsManagerException(string testValue)
{
// Arrange
var fakeFileSystem = Substitute.For <IFileSystem>();
var classUnderTest = new SettingsLoader(fakeFileSystem);
// Act / Assert
Assert.Throws <SettingsLoaderException>(
() => classUnderTest.GetMongoConfiguration(testValue));
}
public void GetMongoConfiguration_WhenFileDoesNotExist_ThrowsSettingsManagerException()
{
// Arrange
var fakeFileSystem = Substitute.For <IFileSystem>();
fakeFileSystem
.FileExists(Arg.Any <string>())
.Returns(false);
var classUnderTest = new SettingsLoader(fakeFileSystem);
// Act / Assert
Assert.Throws <SettingsLoaderException>(
() => classUnderTest.GetMongoConfiguration("anyFilePath.json"));
}
public void GetMongoConfiguration_PassPathThatDoesNotHaveJsonExtension_ThrowsArgumentOutOfRangeException()
{
// Arrange
var fakeFileSystem = Substitute.For <IFileSystem>();
fakeFileSystem
.FileExists(Arg.Any <string>())
.Returns(true);
fakeFileSystem
.GetFileExtension(Arg.Any <string>())
.Returns("doc");
var classUnderTest = new SettingsLoader(fakeFileSystem);
// Act / Assert
Assert.Throws <ArgumentOutOfRangeException>(
() => classUnderTest.GetMongoConfiguration("anyFilePath.doc"));
}
public void GetMongoConfiguration_GivenMalformedJson_ThrowsArgumentExcpetion()
{
// Arrange
var testFilePath = "anyFilePath.json";
var badJson = "{\"SaveOutput\": false \"SomethigElse\": true";
var fakeFileSystem = Substitute.For <IFileSystem>();
fakeFileSystem
.ReadAllText(Arg.Any <string>())
.Returns(badJson);
fakeFileSystem
.FileExists(Arg.Any <string>())
.Returns(true);
fakeFileSystem
.GetFileExtension(testFilePath)
.Returns(".json");
var classUnderTest = new SettingsLoader(fakeFileSystem);
// Act / Assert
Assert.Throws <Newtonsoft.Json.JsonReaderException>(
() => classUnderTest.GetMongoConfiguration(testFilePath));
}