# Reviewing Tests

Once you've [created a Test Session](/v0.22.x/using-distributional/tests/running-tests.md#create-a-test-session), you can check it out in the UI!

The Test Sessions section in your Project is a record of all the Test Sessions you've created. You can view a line chart of the pass rate of your Test Sessions over time or view a table with each row representing a Test Session You can click on a point in the chart or a row in the table to navigate to the corresponding Test Session's detail page to dig into what happened within that session.

<figure><img src="/files/OezT1mgtJgHLPvCma1xP" alt=""><figcaption><p>The Test Sessions tab on your Project page displays a summary of all past Test Sessions for the Project.</p></figcaption></figure>

## Test Session Details

When you first open a Test Session's page, you will land on the Summary tab. This tab provides you with summary information about the session such as the App Similarity Index, which tests have failed, and key insights about the session. There are also tabs to see the Similarity Report (more information below) or to view all the test results within the session.

<figure><img src="/files/Sd4m9yDGvvBaBrWHt56t" alt=""><figcaption><p>Test Session Summary</p></figcaption></figure>

### Similarity Indexes

Across the Test Session page, you will see Similarity Indexes at both an "App" level as well as on each of your columns and metrics. This is a special summary score that dbnl calculates for you to help you quickly and easily understand how much your app has changed between the Experiment and Baseline Runs within the session, both holistically and at a granular level. You can define tests on any of the indexes — at the app level or on a specific metric or column. For more information, see the section "[What Is a Similarity Index?](/v0.22.x/using-distributional/tests/reviewing-tests/what-is-a-similarity-index.md)".

{% hint style="info" %}
By default, dbnl creates a App Similarity Index test in your project. This tests that the Similarity Index for your application is over 80.
{% endhint %}

### Key Insights

On the Summary tab, you'll notice a list of key insights that dbnl has discovered about your Test Session. The key insights will tell you at a glance which columns or metrics have had the most significant change in your Experiment Run when compared to the baseline. If you are particularly interested in the column or metric going forward, you can quickly add a test for its Similarity Index.

Expanding one of these will allow you to view some additional information such as a history of the Similarity Index for the related column or metric; if you are viewing a metric, it will also tell you the lineage of which columns the metric is derived from.

<figure><img src="/files/qQEgJxwb9OqGd85AQYco" alt=""><figcaption><p>Key Insight expansion</p></figcaption></figure>

### Similarity Report

The Similarity Report gives you an overview of all the columns your Experiment Run, providing the relevant Similarity Indexes, the ability to quickly create tests from them, and the option to deep-dive into a column. Expanding one of the rows for a column for show you all the metrics calculated for that column, with their own respective Similarity Indexes and details.

<figure><img src="/files/tiTQajcBR4GG4KEhHsS3" alt=""><figcaption><p>Test Session Similarity Report</p></figcaption></figure>

If you click on the "See Details" link on any of these rows (or from the Key Insights view), you'll be taken to a view that lets you explore the respective column or metric in detail.&#x20;

<figure><img src="/files/WwmbukF4tW2S4qWAgVZP" alt=""><figcaption></figcaption></figure>

From this view, you can easily compare the changes in the column/metric with graphs and summary statistics. Expanding of the comparison statistics will give you even more information to dig into! Click "Add Test" to quickly create a test on the related statistic.


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