Databases
StackOverflow2013
Postsdbo
PO
 

Note that there are some explanatory texts on larger screens.

plurals
  1. PO
    primarykey
    data
    text
    <p>Moq has an ability to run some code after the method is executed. It is called "Callback". Modify your code this way and it will work:</p> <pre><code>private IDataReader MockIDataReader() { var moq = new Mock&lt;IDataReader&gt;(); bool readToggle = true; moq.Setup(x =&gt; x.Read()) // Returns value of local variable 'readToggle' (note that // you must use lambda and not just .Returns(readToggle) // because it will not be lazy initialized then) .Returns(() =&gt; readToggle) // After 'Read()' is executed - we change 'readToggle' value // so it will return false on next calls of 'Read()' .Callback(() =&gt; readToggle = false); moq.Setup(x =&gt; x["Char"]) .Returns('C'); return moq.Object; } private class TestData { public char ValidChar { get; set; } } private TestData GetTestData() { var testData = new TestData(); using ( var reader = MockIDataReader() ) { testData = new TestData { ValidChar = (Char)reader["Char"] }; } return testData; } </code></pre> <p>But what if it will be required IDataReader to contain not only single row, but several? Well, here is a sample:</p> <pre><code>// You should pass here a list of test items, their data // will be returned by IDataReader private IDataReader MockIDataReader(List&lt;TestData&gt; ojectsToEmulate) { var moq = new Mock&lt;IDataReader&gt;(); // This var stores current position in 'ojectsToEmulate' list int count = -1; moq.Setup(x =&gt; x.Read()) // Return 'True' while list still has an item .Returns(() =&gt; count &lt; ojectsToEmulate.Count - 1) // Go to next position .Callback(() =&gt; count++); moq.Setup(x =&gt; x["Char"]) // Again, use lazy initialization via lambda expression .Returns(() =&gt; ojectsToEmulate[count].ValidChar); return moq.Object; } </code></pre>
    singulars
    1. This table or related slice is empty.
    1. POHow to mock an SqlDataReader using Moq - Update
      singulars
      1. PTQuestion
    1. PTAnswer
    1. This table or related slice is empty.
    1. USMonsignor
    plurals
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. POHow to mock an SqlDataReader using Moq - Update
      singulars
      1. PTQuestion
    1. This table or related slice is empty.
    1. VO
      singulars
      1. PO
      1. This table or related slice is empty.
      1. VTAcceptedByOriginator
    2. VO
      singulars
      1. PO
      1. This table or related slice is empty.
      1. VTUpMod
    3. VO
      singulars
      1. PO
      1. This table or related slice is empty.
      1. VTUpMod
    1. COPerfect thanks just what I was looking for.
      singulars
      1. PO
      1. USlancscoder
    2. COJust in case this helps anyone else, in the Returns method the brackets in () => are critical... if you don't use them you'll find yourself in an infinite loop
      singulars
      1. PO
      1. USLiath
 

Querying!

 
Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

SQuiL has stopped working due to an internal error.

If you are curious you may find further information in the browser console, which is accessible through the devtools (F12).

Reload