Merge pull request #143 from fpellet/plpgsql_pgtap

[plpgsql] Merge pgunit and pgtap

plpgsql/Dockerfile

@@ -0,0 +1,45 @@
+FROM postgres:12.1 as base
+WORKDIR /app
+
+ENV PGHOST=localhost
+ENV PGDATABASE=kata
+ENV PGPASSWORD=admin
+ENV PGUSER=postgres
+ENV POSTGRES_PASSWORD=admin
+ENV PGDATA /var/lib/postgresql/data_local
+
+RUN mkdir -p "$PGDATA" && chown -R postgres:postgres "$PGDATA" && chmod 777 "$PGDATA"
+
+ADD ./*.sh /app/
+ADD ./src/item.sql /app/src/
+ADD ./src/new_item.sql /app/src/
+
+# PGUNIT
+FROM base as pgunit
+
+RUN apt-get update \
+ && apt-get install -y --no-install-recommends ca-certificates wget \
+ && rm -rf /var/lib/apt/lists/*
+
+ADD ./pgunit/initialize.sh /app/
+ADD ./pgunit/*.sql /app/
+RUN chmod +x ./*.sh \
+ && ./initializeDocker.sh
+
+# PGTAP
+FROM base as pgtap
+
+RUN apt-get update \
+ && apt-get install -y --no-install-recommends ca-certificates build-essential git-core libv8-dev curl postgresql-server-dev-12 \
+ && rm -rf /var/lib/apt/lists/*
+
+RUN mkdir -p /tmp/pgtap \
+ && cd /tmp/pgtap \
+ && git clone https://github.com/theory/pgtap.git /tmp/pgtap \
+ && make \
+ && make install \
+ && cpan TAP::Parser::SourceHandler::pgTAP
+
+ADD ./pgtap/initialize.sh /app/
+RUN chmod +x ./*.sh \
+ && ./initializeDocker.sh

plpgsql/README.md

@@ -6,36 +6,58 @@ You'll need:
 To use remote / local dockerized database, add ``` --host --port --username```  parameters to plsql invocation.
 
 # Setup
+## With docker
+Run `docker-compose up -d <TEST_FRAMEWORK>` to start, and `docker-compose exec <TEST_FRAMEWORK> bash` to enter in container.  
+`<TEST_FRAMEWORK>` is the testing framework name. Two values are possible: `pgunit` or `pgtap`
+
+## Without docker
 In shell:
-- create database: ```createdb gilded_rose```
-- create item table (structure): ```psql -d gilded_rose -f ./structure/create.sql``` 
-- load code into database: ```psql -d gilded_rose -f ./src/update_quality.sql ```
+- create database: ```createdb kata```
+- create item table (structure): ```psql -d kata -f ./src/item.sql``` 
+- create procedure to help to add item: ```psql -d kata -f ./src/new_item.sql``` 
+- load code into database: ```psql -d kata -f ./src/update_quality.sql ```
 
 If you get this message```LINE 1: CREATE OR REPLACE PROCEDURE public.update_quality()```, your PostgreSQL version may under 11, consider upgrading.
 
 # Run
 In shell:
-- load manual test data into database: ```psql -d gilded_rose -f ./test/manual/load.sql```
-- connect to CLI: ```psql -d gilded_rose```
+- connect to CLI: ```psql -d kata```
+- add item: ```CALL new_item('+5 Dexterity Vest', 10, 20);```
 - check item state: ```SELECT * FROM item;```
 - execute item update: ```CALL update_quality();```
 - check item state: ```SELECT * FROM item;```
 - empty table : ```TRUNCATE TABLE item;```
 
+# Kata
+`src/update_quality.sql` contains code to refactor.
 
 # Test
 
 ## Using pgTAP
-
 ### Requirements
 Install pgTAP [instructions here](https://pgtap.org/documentation.html#installation)  
+It's already installed with docker
 
 ```item``` table is supposed to be empty. 
 If not, it would cause a (false positive)[https://en.wikipedia.org/wiki/False_positives_and_false_negatives]
 
 ### Execute
-In shell, execute ```pg_prove --dbname gilded_rose test/pgtap/*.sql```. 
-You should get ```test/pgtap/template.sql .. ok All tests successful.```
+Run `docker-compose up -d pgtap` to start, and `docker-compose exec pgtap bash` to enter in container.  
+In shell, execute ```psql -d kata -f src/update_quality.sql && pg_prove pgtap/test_*.sql```. 
+You should get ```pgtap/test_case_update_quality.sql .. ok All tests successful.```
 
 If you get this message ```ERROR: function plan(integer) does not exist LINE 1: SELECT PLAN(1);```, pgTAP is not working => check your pgTAP installation. 
 If you get this message ```Failed test:  2 Parse errors: Bad plan.  You planned 1 tests but ran 2.```, the item table contains data, interfering with the test => empty it, then run test again.
+
+`pgtap/test_case_update_quality.sql` contains test examples.
+
+## Using pgunit
+### Requirement
+Unit test framework used : pgunit (https://github.com/adrianandrei-ca/pgunit)  
+It's already installed with docker  
+
+### Execute
+Run `docker-compose up -d pgunit` to start, and `docker-compose exec pgunit bash` to enter in container.  
+You can run `cat src/update_quality.sql pgunit/run_tests.sql | psql -d kata -f -`
+
+`pgunit/run_tests.sql` contains test examples.

plpgsql/docker-compose.yml

@@ -0,0 +1,22 @@
+version: '3.4'
+
+services:
+  pgunit:
+    # image: fpellet/gildedrose-refactoring-kata:pgunit
+    build: 
+      context: .
+      target: pgunit
+    ports:
+    - "5432:5432"
+    volumes:
+    - .:/app/:z
+
+  pgtap:
+    # image: fpellet/gildedrose-refactoring-kata:pgtap
+    build: 
+      context: .
+      target: pgtap
+    ports:
+    - "5432:5432"
+    volumes:
+    - .:/app/:z

plpgsql/initializeDatabase.sh

@@ -0,0 +1,13 @@
+#!/usr/bin/env bash
+
+set -ex
+
+echo "Create database"
+psql -d postgres -c 'DROP DATABASE IF EXISTS kata;'
+psql -d postgres -c 'CREATE DATABASE kata;'
+
+./initialize.sh
+
+echo "Add current code"
+psql -d kata -f src/item.sql
+psql -d kata -f src/new_item.sql

plpgsql/pgtap/initialize.sh

@@ -0,0 +1,6 @@
+#!/usr/bin/env bash
+
+set -ex
+
+echo "Enable extension"
+psql -d kata -c 'CREATE EXTENSION IF NOT EXISTS pgtap;'

plpgsql/pgtap/test_case_update_quality.sql

@@ -0,0 +1,18 @@
+BEGIN;
+-- Plan count should match the number of tests. If it does not then pg_prove will fail the test
+SELECT plan(1);
+
+-- Run the tests.
+-- Given
+TRUNCATE TABLE item;
+CALL new_item('foo', 0, 0);
+
+-- When
+CALL update_quality();
+
+-- Then
+SELECT is( name, 'fixme', 'name did change' ) FROM item;
+
+-- Finish the tests and clean up.
+SELECT * FROM finish();
+ROLLBACK;

plpgsql/pgunit/Dockerfile

@@ -1,20 +0,0 @@
-FROM postgres:12.1
-WORKDIR /app
-
-ENV PGHOST=localhost
-ENV PGDATABASE=kata
-ENV PGPASSWORD=admin
-ENV PGUSER=postgres
-ENV POSTGRES_PASSWORD=admin
-ENV PGDATA /var/lib/postgresql/data_local
-
-RUN mkdir -p "$PGDATA" && chown -R postgres:postgres "$PGDATA" && chmod 777 "$PGDATA"
-
-RUN apt-get update \
- && apt-get install -y --no-install-recommends ca-certificates wget \
- && rm -rf /var/lib/apt/lists/*
-
-ADD ./*.sh /app/
-ADD ./*.sql /app/
-RUN chmod +x ./*.sh \
- && ./initializeDocker.sh

plpgsql/pgunit/docker-compose.yml

@@ -1,16 +0,0 @@
-version: '3'
-
-services:
-  database:
-    build: .
-    ports:
-    - "5432:5432"
-    volumes:
-    - .:/app/:z
-
-  admin:
-    image: adminer
-    links:
-    - database
-    ports:
-    - "8081:8080"

plpgsql/pgunit/initialize.sh

@@ -2,9 +2,7 @@
 
 set -ex
 
-echo "Create database"
-psql -d postgres -c 'DROP DATABASE IF EXISTS kata;'
-psql -d postgres -c 'CREATE DATABASE kata;'
+echo "Enable DBLINK"
 psql -d kata -c 'CREATE EXTENSION DBLINK;'
 
 echo "Initialize test framework"
@@ -14,8 +12,3 @@ wget https://raw.githubusercontent.com/adrianandrei-ca/pgunit/bc69dfc526ec3db55f
 
 echo "Initialize custom asserts"
 psql -d kata -f asserts.sql
-
-echo "Add current code"
-psql -d kata -f item.sql
-psql -d kata -f new_item.sql
-psql -d kata -f update_quality.sql

plpgsql/pgunit/readme.md

@@ -1,10 +0,0 @@
-## Requirement
-Testing on postgres 12  
-Unit test framework used : pgunit (https://github.com/adrianandrei-ca/pgunit)  
-
-## Setup
-Run `docker-compose up -d` to start, and `docker-compose exec database bash` to enter in container.  
-You can run `cat update_quality.sql run_tests.sql | psql -d kata -f -`
-
-## Kata
-`update_quality.sql` contains code to refactor, and `run_tests.sql` contains test examples.

plpgsql/structure/create.sql

@@ -1,5 +0,0 @@
-CREATE TABLE item (
- name    CHARACTER VARYING(100) NOT NULL,
- sellIn  INTEGER,
- quality INTEGER                NOT NULL
-);