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How to read excel test data in Go language, easy to learn

2022-07-29 19:32:00 【Rejoice in the testing world】

The data in the test is often saved in Excel, especially the steps and input parameters of some use cases.The advantage of this is that no matter what tool you use, no matter what programming language you use, you can automate testing by reading data in a common format.

In automated testing, the most commonly used programming languages are Python and Java, but with the popularity of golang, more and more technical teams use go language for automated testing.

This article is about how to read test data in excel in go language.

Excelize is a library written in Go language for manipulating Excel documents. Now we use excel files in xlsx format, which can be manipulated through the excelize library.In addition to supporting data manipulation, Excelize can also design styles, action icons, pivot tables and slicers.

`open excel`

1. Open excel

The advantage of the Go language is that defer can be used to perform some post-operations, and defer can be called at the end of the function execution, so after opening excel, you can directly close the file through defer, and other operations can be written later, so as not to forgetClose the file.

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`Read sheet`

2. Read sheet form

An Excel will contain multiple tables, so you must first select a table to read the content in it. I personally think csv is a more suitable form for storing use case data. Just open the file directly, no need to select againTable, and csv only focuses on data, the operation will be much faster.But now excel is still used more, so I will continue to focus on reading the data, and I will talk about the csv format next time.

rows, err := f.GetRows("Sheet1")if err != nil {log.Fatal("Failed to open the form")}

The table gets a nested Slice, and each row of data can be obtained through the for loop:

for _, row := range rows {log.Println(row)}

`Next iteration`

You can also get an iterable object, manually iterate once through Next, and take out the header data of the first row.All data of this row can be obtained through rows.Columns().

The next loop will get all the test data.

for rows.Next() {columns, err := rows.Columns()if err != nil {log.Fatal("Error getting data")}log.Println(columns)}

`Summary`

The first step: read the file through OpenFile

Step 2: Read all row data through GetRows

You can also get the left and right rows through Rows, and then manually iterate to get the data through Next.

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