https://github.com/steenhansen/clojure-text-diff

Colored text diffs for Clojure tests
https://github.com/steenhansen/clojure-text-diff

Last synced: about 1 year ago
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Colored text diffs for Clojure tests

• Host: GitHub
• URL: https://github.com/steenhansen/clojure-text-diff
• Owner: steenhansen
• License: mit
• Created: 2019-11-05T05:00:25.000Z (over 6 years ago)
• Default Branch: master
• Last Pushed: 2019-12-28T05:44:20.000Z (over 6 years ago)
• Last Synced: 2025-03-25T04:36:13.814Z (over 1 year ago)
• Language: Clojure
• Homepage:
• Size: 227 KB
• Stars: 0
• Watchers: 2
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

          


### Rational 

The Clojure function 'text-diff/are-vars-eq' helps to quickly show small differences during testing with large bodies of html, convoluted maps/sets/lists/vectors, and unordered maps/sets. When unequal actual and expected values are tested, a short description of the similarities and differences are printed in the REPL. First, leading identical sections are displayed, followed by differences, and then finally identical ending sections.

### How to use

```

;; clojure test file

(ns my-test-ns

    (:require [clojure.test :refer [is]])

    (:require [text-diff :refer [are-vars-eq]]))

(deftest test-html-values []

  (let [actual-value   "DIFFERENT"

        expected-value "different"

        [diff-actual diff-expected] (are-vars-eq actual-value expected-value)]

    (is (= diff-actual diff-expected)))

)

```

```

;; repl output

|START|""

|DIFF1|"e>DIFFERENT"

|DIFF2|"e>different"

|  END|""

expected (= diff-actual diff-expected)

actual (not (= "DIFFERENT" "different"))

false

```

###Examples

![Hard to see \n versus \r](images/a_r_vs_n.png)

---

![Hard to see 1 versus L](images/b_1_vs_l.png)

---

![Hard to see c versus X](images/c_out_order.png)

---

![Hard to see X versus Y](images/d_lots_x_y.png)

---

![Hard to see 1/3 versus 1/4](images/e_map_3_4.png)

---

![Hard to see ending \n](images/f_end_n.png)

---

![Hard to see 8 versus 7](images/g_numbers_7_8.png)

---

Odd string behavior that is to be expected from string differences inside maps/sets/lists/vectors. Quote delimiters cause extra blank spaces because variable types are not taken into account.

![Hard to see 8 versus 7](images/h_str_in_list.png)