Learning/s7netplus
0
0
Fork 0
mirror of https://github.com/S7NetPlus/s7netplus.git synced 2026-02-17 22:38:27 +08:00
Code Issues Packages Projects Releases Wiki Activity

Added unit tests to consolidate boolean read/write.

Browse Source 
Signed-off-by: Michele Cattafesta <michele.cattafesta@mesta-automation.com>
This commit is contained in:
Michele Cattafesta
2017-05-23 22:29:43 +01:00
parent 06bee240e5
commit 8c65632d7a
1 changed files with 50 additions and 15 deletions
Download Patch File Download Diff File Expand all files Collapse all files

65
S7.Net.UnitTest/S7NetTests.cs
View File

@@ -15,20 +15,20 @@ using S7.UnitTest.Helpers;
/**
* About the tests:
* ---------------------------------------------------------------------------
* The tests were written to show how to use this library to read and write
* different types of values, how to box and unbox values and of course to
* The tests were written to show how to use this library to read and write
* different types of values, how to box and unbox values and of course to
* address some of the bugs of the library.
* These tests are not meant to cover 100% the code, but to check that once a
* These tests are not meant to cover 100% the code, but to check that once a
* variable is written, it stores the correct value.
* ----------------------------------------------------------------------------
* The plc used for the tests is the S7 "server" provided by Snap7 opensource
* The plc used for the tests is the S7 "server" provided by Snap7 opensource
* library, that you can get for free here:http://snap7.sourceforge.net/
* The implementation of the server will not be discussed here, but there are
* some issues with the interop that cause the server, and unit test, to fail
* The implementation of the server will not be discussed here, but there are
* some issues with the interop that cause the server, and unit test, to fail
* under some circumstances, like "click on Run all tests" too much.
* This doesn't mean that S7.Net has bugs, but that the implementation of the
* This doesn't mean that S7.Net has bugs, but that the implementation of the
* server has problems.
*
*
*/
namespace S7.Net.UnitTest
{
@@ -36,11 +36,11 @@ namespace S7.Net.UnitTest
public class S7NetTests
{
#region Constants
const int DB2 = 2;
const int DB2 = 2;
#endregion
#region Private fields
Plc plc;
Plc plc;
#endregion
#region Constructor
@@ -52,7 +52,7 @@ namespace S7.Net.UnitTest
plc = new Plc(CpuType.S7300, "127.0.0.1", 0, 2);
//ConsoleManager.Show();
ShutDownServiceS7oiehsx64();
}
[TestInitialize]
@@ -68,13 +68,13 @@ namespace S7.Net.UnitTest
plc.Close();
S7TestServer.Stop();
}
#endregion
#region Tests
[TestMethod]
public void T00_TestConnection()
public void T00_TestConnection()
{
if (plc.IsConnected == false)
{
@@ -136,7 +136,7 @@ namespace S7.Net.UnitTest
/// <summary>
/// Read/Write a single REAL with a single request.
/// Test that writing a double and reading it gives the correct value.
/// Test that writing a double and reading it gives the correct value.
/// </summary>
[TestMethod]
public void T03_WriteAndReadRealVariables()
@@ -395,7 +395,7 @@ namespace S7.Net.UnitTest
plc.Write("DB2.DBW16", val2);
ushort result2 = (ushort)plc.Read("DB2.DBW16");
Assert.AreEqual(val2, result2, "A ushort goes from 0 to 64512");
var dataItems = new List<DataItem>()
{
new DataItem
@@ -422,6 +422,41 @@ namespace S7.Net.UnitTest
Assert.AreEqual(dataItems[1].Value, val2);
}
/// <summary>
/// Tests that a read and a write on addresses bigger than 8192 are executed correctly
/// </summary>
[TestMethod]
public void T11_WriteAndReadBooleanVariable()
{
Assert.IsTrue(plc.IsConnected, "Before executing this test, the plc must be connected. Check constructor.");
// tests when writing true/false
plc.Write("DB1.DBX0.0", false);
var boolVariable = (bool)plc.Read("DB1.DBX0.0");
Assert.IsFalse(boolVariable);
plc.Write("DB1.DBX0.0", true);
boolVariable = (bool)plc.Read("DB1.DBX0.0");
Assert.IsTrue(boolVariable);
// tests when writing 0/1
plc.Write("DB1.DBX0.0", 0);
boolVariable = (bool)plc.Read("DB1.DBX0.0");
Assert.IsFalse(boolVariable);
plc.Write("DB1.DBX0.0", 1);
boolVariable = (bool)plc.Read("DB1.DBX0.0");
Assert.IsTrue(boolVariable);
plc.Write("DB1.DBX0.7", 1);
boolVariable = (bool)plc.Read("DB1.DBX0.7");
Assert.IsTrue(boolVariable);
plc.Write("DB1.DBX0.7", 0);
boolVariable = (bool)plc.Read("DB1.DBX0.7");
Assert.IsFalse(boolVariable);
}
#endregion
#region Private methods