added test fixtures

Author: Alexsey-VR

fixtures/docopt.txt

@@ -0,0 +1,16 @@
+        <<<'DOCOPT'
+        gendiff -h
+
+        Generate diff
+
+        Usage:
+          gendiff (-h|--help)
+          gendiff (-v|--version)
+          gendiff [Options]... FILE1 FILE2
+
+        Options:
+          -h --help                  Show this screen
+          -v --version               Show version
+          --format <fmt>             Report format [default: stylish]
+
+        DOCOPT

fixtures/fileForArray.json

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+{
+  "host": "hexlet.io",
+  "timeout": 50
+}

fixtures/fileNotJSON.json

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+[
+  "host" => "hexlet.io",
+  "timeout" => 50
+]

fixtures/filesContent.txt

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+file1.json content:
+{
+    hexlet.io
+    50
+    123.234.53.22
+    
+}
+file2.json content:
+{
+    20
+    1
+    hexlet.io
+}

fixtures/filesDiffs.txt

@@ -0,0 +1,7 @@
+{
+    hexlet.io
+  - 50
+  + 20
+  - 123.234.53.22
+  - 
+}