Add pgtap (#301)

Co-authored-by: Evan Stanton <evanstanton@Evans-MBP.fritz.box>
Co-authored-by: Ian Stanton <ian@coredb.io>

contrib/pgtap/Dockerfile

@@ -0,0 +1,12 @@
+ARG PG_VERSION=15
+FROM quay.io/coredb/c-builder:pg${PG_VERSION}
+
+# Clone repository
+RUN git clone https://github.com/theory/pgtap.git
+
+ARG RELEASE=v1.2.0
+
+RUN cd pgtap && \
+    git fetch origin ${RELEASE} && \
+    git checkout ${RELEASE} && \
+    make

contrib/pgtap/Trunk.toml

@@ -0,0 +1,20 @@
+[extension]
+name = "pgtap"
+version = "1.2.0"
+repository = "https://github.com/theory/pgtap"
+license = "Copyright"
+description = "Unit testing for PostgreSQL."
+homepage = "https://pgtap.org/"
+documentation = "https://pgtap.org/documentation.html"
+categories = ["tooling_admin"]
+
+[build]
+postgres_version = "15"
+platform = "linux/amd64"
+dockerfile = "Dockerfile"
+install_command = """
+    cd pgtap && make install
+    set -x
+    mv /usr/local/pgsql/share/extension/* /usr/share/postgresql/15/extension
+    mv /usr/local/pgsql/lib/* /usr/lib/postgresql/15/lib
+    """