Test project is now in with its test ready to run (depicting the remaining problems)

Author: mlebihan

samples/client/others/go/issue_20079_go_regex_wrongly_translated/.gitignore

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+# Compiled Object files, Static and Dynamic libs (Shared Objects)
+*.o
+*.a
+*.so
+
+# Folders
+_obj
+_test
+
+# Architecture specific extensions/prefixes
+*.[568vq]
+[568vq].out
+
+*.cgo1.go
+*.cgo2.c
+_cgo_defun.c
+_cgo_gotypes.go
+_cgo_export.*
+
+_testmain.go
+
+*.exe
+*.test
+*.prof

samples/client/others/go/issue_20079_go_regex_wrongly_translated/.openapi-generator-ignore

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+# OpenAPI Generator Ignore
+# Generated by openapi-generator https://github.com/openapitools/openapi-generator
+
+# Use this file to prevent files from being overwritten by the generator.
+# The patterns follow closely to .gitignore or .dockerignore.
+
+# As an example, the C# client generator defines ApiClient.cs.
+# You can make changes and tell OpenAPI Generator to ignore just this file by uncommenting the following line:
+#ApiClient.cs
+
+# You can match any string of characters against a directory, file or extension with a single asterisk (*):
+#foo/*/qux
+# The above matches foo/bar/qux and foo/baz/qux, but not foo/bar/baz/qux
+
+# You can recursively match patterns against a directory, file or extension with a double asterisk (**):
+#foo/**/qux
+# This matches foo/bar/qux, foo/baz/qux, and foo/bar/baz/qux
+
+# You can also negate patterns with an exclamation (!).
+# For example, you can ignore all files in a docs folder with the file extension .md:
+#docs/*.md
+# Then explicitly reverse the ignore rule for a single file:
+#!docs/README.md

samples/client/others/go/issue_20079_go_regex_wrongly_translated/.openapi-generator/FILES

@@ -0,0 +1,19 @@
+.gitignore
+.openapi-generator-ignore
+.travis.yml
+README.md
+api/openapi.yaml
+api_default.go
+client.go
+configuration.go
+docs/DefaultAPI.md
+docs/FooGet200Response.md
+docs/ImportCode.md
+git_push.sh
+go.mod
+go.sum
+model__foo_get_200_response.go
+model_import_code.go
+response.go
+test/api_default_test.go
+utils.go

samples/client/others/go/issue_20079_go_regex_wrongly_translated/.openapi-generator/VERSION

@@ -0,0 +1 @@
+7.21.0-SNAPSHOT

samples/client/others/go/issue_20079_go_regex_wrongly_translated/.travis.yml

@@ -0,0 +1,8 @@
+language: go
+
+install:
+  - go get -d -v .
+
+script:
+  - go build -v ./
+

samples/client/others/go/issue_20079_go_regex_wrongly_translated/README.md

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+# Testing and Purpose
+
+This client doesn't require a server to work. It only tests the regex feature. This comamnd should immediately run it:
+
+```bash
+go mod tidy && go vet ./... && go test ./... -v
+```
+
+It is intended to test the [issue 20079 : [BUG] Golang pattern validation with regex fails on comma](https://github.com/OpenAPITools/openapi-generator/issues/20079)
+that is currently unsolved, for these reasons:
+
+1. For `javaComments` test case, when it should use the `^/\*.*\*/|//[^\\n]*$` pattern, the `org.yaml.snakeyaml.scanner parser` that scans the spec file, wrongly tells that `\*` is an invalid escape code.  
+   But attempting to enter `^/\\*.*\\*/|//[^\\n]*$` keeps the `\\*` and generates `^/\\*.*\\*/|//[^\n]*$` instead of the wished `^/\*.*\*/|//[^\n]*$`
+
+2. For `windowsAbsolutePath` test case, Go `validator.package v2` doesn't look handling this regexp well, and tell it having a bad parameter.
+
+## Details
+
+It tests the following regex adaptations for Golang generation:
+
+```yaml
+code:
+   type: string
+   pattern: "^[0-9]{2,}$"
+
+creditCard:
+   description: "Visa credit card\n
+    matches: 4123 6453 2222 1746\n
+    non-matches: 3124 5675 4400 4567, 4123-6453-2222-1746"
+   type: string
+
+   pattern: "^4[0-9]{3}\\s[0-9]{4}\\s[0-9]{4}\\s[0-9]{4}$"
+   # Original was: 4[0-9]{3}\s[0-9]{4}\s[0-9]{4}\s[0-9]{4}
+
+date:
+   description: "Some dates\n
+    matches: 31/04/1999, 15/12/4567\n
+    non-matches: 31/4/1999, 31/4/99, 1999/04/19, 42/67/25456"
+   type: string
+   pattern: "^([0-2][0-9]|30|31)/(0[1-9]|1[0-2])/[0-9]{4}$"
+   # Original was: ([0-2][0-9]|30|31)/(0[1-9]|1[0-2])/[0-9]{4} : unchanged
+
+windowsAbsolutePath:
+   description: "Windows absolute path\n
+    matches: \\\\server\\share\\file\n
+    non-matches: \\directory\\directory2, /directory2"
+   type: string
+
+   # This test case doesn't work due to a problem (?) in validator.v2 (?)
+   # it issues an unexpected unknown tag or Bad Parameter.
+
+   # pattern: "^([A-Za-z]:|\\)\\[[:alnum:][:whitespace:]!\"#$%&'()+,-.;=@[]^_`{}~.]*$"
+   # Original was: ([A-Za-z]:|\\)\\[[:alnum:][:whitespace:]!"#$%&'()+,-.\\;=@\[\]^_`{}~.]*
+
+email1:
+   description: "Email Address 1\n
+    matches: abc.123@def456.com, _123@abc.ca\n
+    non-matches: abc@dummy, ab*cd@efg.hijkl"
+   type: string
+
+   pattern: "^[[:word:]\\-.]+@[[:word:]\\-.]+\\.[[:alpha:]]{2,3}$"
+   # Original was: [[:word:]\-.]+@[[:word:]\-.]+\.[[:alpha:]]{2,3}
+
+email2:
+   description: "Email Address 2\n
+    matches: *@qrstuv@wxyz.12345.com, __1234^%@@abc.def.ghijkl\n
+    non-matches: abc.123.*&ca, ^%abcdefg123"
+   type: string
+
+   pattern: "^.+@.+\\..+$"
+   # Original was: .+@.+\..+
+
+htmlHexadecimalColorCode1:
+   description: "HTML Hexadecimal Color Code 1\n
+    matches: AB1234, CCCCCC, 12AF3B\n
+    non-matches: 123G45, 12-44-CC"
+   type: string
+   pattern: "^[A-F0-9]{6}$"
+   # Original was: [A-F0-9]{6} : unchanged
+
+htmlHexadecimalColorCode2:
+   description: "HTML Hexadecimal Color Code 2\n
+    matches: AB 11 00, CC 12 D3\n
+    non-matches: SS AB CD, AA BB CC DD, 1223AB"
+   type: string
+
+   pattern: "^[A-F0-9]{2}\\s[A-F0-9]{2}\\s[A-F0-9]{2}$"
+   # Original was: [A-F0-9]{2}\s[A-F0-9]{2}\s[A-F0-9]{2}
+
+ipAddress:
+   description: "IP Address\n
+    matches: 10.25.101.216\n
+    non-matches: 0.0.0, 256.89.457.02"
+   type: string
+
+   pattern: "^((2(5[0-5]|[0-4][0-9])|1([0-9][0-9])|([1-9][0-9])|[0-9])\\.){3}(2(5[0-5]|[0-4][0-9])|1([0-9][0-9])|([1-9][0-9])|[0-9])$"
+   # Original was: ((2(5[0-5]|[0-4][0-9])|1([0-9][0-9])|([1-9][0-9])|[0-9])\.){3}(2(5[0-5]|[0-4][0-9])|1([0-9][0-9])|([1-9][0-9])|[0-9])
+
+javaComments:
+   description: "Java Comments\n
+    matches: Matches Java comments that are between /* and */, or one line comments prefaced by //\n
+    non-matches: a=1"
+   type: string
+
+   # This test case doesn't work due to a problem (?) in validator.v2 (?)
+   # org.yaml.snakeyaml.scanner declares \* being an invalid escape code at yaml checking step
+
+   # pattern: "^/\*.*\*/|//[^\\n]*$"
+   # Original was: /\*.*\*/|//[^\n]*
+
+money:
+   description: "\n
+    matches: $1.00, -$97.65
+    non-matches: $1, 1.00$, $-75.17"
+   type: string
+
+   pattern: "^(\\+|-)?\\$[0-9]*\\.[0-9]{2}$"
+   # Original was: (\+|-)?\$[0-9]*\.[0-9]{2}
+
+positiveNegativeDecimalValue:
+   description: "Positive, negative numbers, and decimal values\n
+    matches: +41, -412, 2, 7968412, 41, +41.1, -3.141592653 
+    non-matches: ++41, 41.1.19, -+97.14"
+   type: string
+
+   pattern: "^(\\+|-)?[0-9]+(\\.[0-9]+)?$"
+   # Original was: (\+|-)?[0-9]+(\.[0-9]+)?
+
+password1:
+   description: "Passwords 1\n
+    matches: abcd, 1234, A1b2C3d4, 1a2B3\n
+    non-matches: abc, *ab12, abcdefghijkl"
+   type: string
+   pattern: "^[[:alnum:]]{4,10}$"
+   # Original was: [[:alnum:]]{4,10} : unchanged
+
+password2:
+   description: "Passwords 2\n
+    matches: AB_cd, A1_b2c3, a123_\n
+    non-matches: *&^g, abc, 1bcd"
+   type: string
+
+   pattern: "^[a-zA-Z]\\w{3,7}$"
+   # Original was: [a-zA-Z]\w{3,7} : unchanged
+
+phoneNumber:
+   description: "Phone Numbers\n
+    matches: 519-883-6898, 519 888 6898\n
+    non-matches: 888 6898, 5198886898, 519 883-6898"
+   type: string
+
+   pattern: "^([2-9][0-9]{2}-[2-9][0-9]{2}-[0-9]{4})|([2-9][0-9]{2}\\s[2-9][0-9]{2}\\s[0-9]{4})$"
+   # Original was: ([2-9][0-9]{2}-[2-9][0-9]{2}-[0-9]{4})|([2-9][0-9]{2}\s[2-9][0-9]{2}\s[0-9]{4})
+
+sentence1:
+   description: "Sentences 1\n
+      matches: Hello, how are you?\n
+      non-matches: i am fine"
+   type: string
+
+   pattern: "^[A-Z0-9].*(\\.|\\?|!)$"
+   # Original was: [A-Z0-9].*(\.|\?|!)
+
+sentence2:
+   description: "Sentences 2\n
+      matches: Hello, how are you?n
+      non-matches: i am fine"
+   type: string
+   pattern: "^[[:upper:]0-9].*[.?!]$"
+   # Original was: [[:upper:]0-9].*[.?!] : unchanged
+
+socialSecurityNumber:
+   description: "Social Security Number\n
+      matches: 123-45-6789\n
+      non-matches: 123 45 6789, 123456789, 1234-56-7891"
+   type: string
+   pattern: "^[0-9]{3}-[0-9]{2}-[0-9]{4}$"
+   # Original was: [0-9]{3}-[0-9]{2}-[0-9]{4} : unchanged
+
+url:
+   description: "URL\n
+      matches: http://www.sample.com, www.sample.com\n
+      non-matches: http://sample.com, http://www.sample.comm"
+   type: string
+
+   # \. ==> \\.
+   pattern: "^(http://)?www\\.[a-zA-Z0-9]+\\.[a-zA-Z]{2,3}$"
+   # Original was: (http://)?www\.[a-zA-Z0-9]+\.[a-zA-Z]{2,3}
+```
+
+# Go API client for openapi
+
+No description provided (generated by Openapi Generator https://github.com/openapitools/openapi-generator)
+
+## Overview
+This API client was generated by the [OpenAPI Generator](https://openapi-generator.tech) project.  By using the [OpenAPI-spec](https://www.openapis.org/) from a remote server, you can easily generate an API client.
+
+- API version: 1.0
+- Package version: 1.0.0
+- Generator version: 7.21.0-SNAPSHOT
+- Build package: org.openapitools.codegen.languages.GoClientCodegen
+
+## Installation
+
+Install the following dependencies:
+
+```sh
+go get github.com/stretchr/testify/assert
+go get golang.org/x/net/context
+```
+
+Put the package under your project folder and add the following in import:
+
+```go
+import openapi "github.com/GIT_USER_ID/GIT_REPO_ID"
+```
+
+To use a proxy, set the environment variable `HTTP_PROXY`:
+
+```go
+os.Setenv("HTTP_PROXY", "http://proxy_name:proxy_port")
+```
+
+## Configuration of Server URL
+
+Default configuration comes with `Servers` field that contains server objects as defined in the OpenAPI specification.
+
+### Select Server Configuration
+
+For using other server than the one defined on index 0 set context value `openapi.ContextServerIndex` of type `int`.
+
+```go
+ctx := context.WithValue(context.Background(), openapi.ContextServerIndex, 1)
+```
+
+### Templated Server URL
+
+Templated server URL is formatted using default variables from configuration or from context value `openapi.ContextServerVariables` of type `map[string]string`.
+
+```go
+ctx := context.WithValue(context.Background(), openapi.ContextServerVariables, map[string]string{
+	"basePath": "v2",
+})
+```
+
+Note, enum values are always validated and all unused variables are silently ignored.
+
+### URLs Configuration per Operation
+
+Each operation can use different server URL defined using `OperationServers` map in the `Configuration`.
+An operation is uniquely identified by `"{classname}Service.{nickname}"` string.
+Similar rules for overriding default operation server index and variables applies by using `openapi.ContextOperationServerIndices` and `openapi.ContextOperationServerVariables` context maps.
+
+```go
+ctx := context.WithValue(context.Background(), openapi.ContextOperationServerIndices, map[string]int{
+	"{classname}Service.{nickname}": 2,
+})
+ctx = context.WithValue(context.Background(), openapi.ContextOperationServerVariables, map[string]map[string]string{
+	"{classname}Service.{nickname}": {
+		"port": "8443",
+	},
+})
+```
+
+## Documentation for API Endpoints
+
+All URIs are relative to *http://localhost*
+
+Class | Method | HTTP request | Description
+------------ | ------------- | ------------- | -------------
+*DefaultAPI* | [**FooGet**](docs/DefaultAPI.md#fooget) | **Get** /foo | 
+
+
+## Documentation For Models
+
+ - [FooGet200Response](docs/FooGet200Response.md)
+ - [ImportCode](docs/ImportCode.md)
+
+
+## Documentation For Authorization
+
+Endpoints do not require authorization.
+
+
+## Documentation for Utility Methods
+
+Due to the fact that model structure members are all pointers, this package contains
+a number of utility functions to easily obtain pointers to values of basic types.
+Each of these functions takes a value of the given basic type and returns a pointer to it:
+
+* `PtrBool`
+* `PtrInt`
+* `PtrInt32`
+* `PtrInt64`
+* `PtrFloat`
+* `PtrFloat32`
+* `PtrFloat64`
+* `PtrString`
+* `PtrTime`
+
+## Author
+
+
+