tests/int/spec.bats: simplify

Most of whatever is happening in the test cases is already available in
setup_hello and teardown_hello. Use these.

Rewrite the validation test to be more compact and not dependent
on `pwd` value. Also, pinning xeipuuv/gojsonschema to a particular
version is no longer required.

Signed-off-by: Kir Kolyshkin <kolyshkin@gmail.com>

tests/integration/spec.bats

@@ -3,99 +3,38 @@
 load helpers
 
 function setup() {
-  # initial cleanup in case a prior test exited and did not cleanup
-  rm -rf "$HELLO_BUNDLE"
-
-  # setup hello-world for spec generation testing
-  mkdir -p "$HELLO_BUNDLE"/rootfs
-  tar -C "$HELLO_BUNDLE"/rootfs -xf "$HELLO_IMAGE"
+	setup_hello
 }
 
 function teardown() {
-  rm -rf "$HELLO_BUNDLE"
+	teardown_hello
 }
 
 @test "spec generation cwd" {
-  cd "$HELLO_BUNDLE"
-  # note this test runs from the bundle not the integration root
-
-  # test that config.json does not exist after the above partial setup
-  [ ! -e config.json ]
-
-  # test generation of spec does not return an error
-  runc_spec
-  [ "$status" -eq 0 ]
-
-  # test generation of spec created our config.json (spec)
-  [ -e config.json ]
-
-  # test existence of required args parameter in the generated config.json
-  run bash -c "grep -A2 'args' config.json | grep 'sh'"
-  [[ "${output}" == *"sh"* ]]
-
-  # change the default args parameter from sh to hello
-  update_config '(.. | select(.? == "sh")) |= "/hello"'
-
-  # ensure the generated spec works by running hello-world
-  runc run test_hello
-  [ "$status" -eq 0 ]
+	runc run test_hello
+	[ "$status" -eq 0 ]
 }
 
 @test "spec generation --bundle" {
-  # note this test runs from the integration root not the bundle
-
-  # test that config.json does not exist after the above partial setup
-  [ ! -e "$HELLO_BUNDLE"/config.json ]
-
-  # test generation of spec does not return an error
-  runc_spec "$HELLO_BUNDLE"
-  [ "$status" -eq 0 ]
-
-  # test generation of spec created our config.json (spec)
-  [ -e "$HELLO_BUNDLE"/config.json ]
-
-  # change the default args parameter from sh to hello
-  update_config '(.. | select(.? == "sh")) |= "/hello"' "$HELLO_BUNDLE"
-
-  # ensure the generated spec works by running hello-world
-  runc run --bundle "$HELLO_BUNDLE" test_hello
-  [ "$status" -eq 0 ]
+	runc run --bundle "$HELLO_BUNDLE" test_hello
+	[ "$status" -eq 0 ]
 }
 
 @test "spec validator" {
-  requires rootless_no_features
-
-  TESTDIR=$(pwd)
-  cd "$HELLO_BUNDLE"
-
-  run git clone https://github.com/opencontainers/runtime-spec.git src/runtime-spec
-  [ "$status" -eq 0 ]
-
-  SPEC_VERSION=$(grep 'github.com/opencontainers/runtime-spec' "${TESTDIR}"/../../go.mod | cut -d ' ' -f 2)
-
-  # Will look like this when not pinned to spesific tag: "v0.0.0-20190207185410-29686dbc5559", otherwise "v1.0.0"
-  SPEC_COMMIT=$(cut -d "-" -f 3 <<< "$SPEC_VERSION")
-
-  SPEC_REF=$([[ -z "$SPEC_COMMIT" ]] && echo "$SPEC_VERSION" || echo "$SPEC_COMMIT")
-
-  run bash -c "cd src/runtime-spec && git reset --hard ${SPEC_REF}"
-
-  [ "$status" -eq 0 ]
-  [ -e src/runtime-spec/schema/config-schema.json ]
-
-  run bash -c "GOPATH='$GOPATH' go get github.com/xeipuuv/gojsonschema"
-  [ "$status" -eq 0 ]
+	requires rootless_no_features
 
-  run bash -c "cd ${GOPATH}/src/github.com/xeipuuv/gojsonschema && git reset --hard 6637feb73ee44cd4640bb3def285c29774234c7f"
-  [ "$status" -eq 0 ]
+	SPEC_VERSION=$(awk '$1 == "github.com/opencontainers/runtime-spec" {print $2}' "$BATS_TEST_DIRNAME"/../../go.mod)
+	# Will look like this when not pinned to specific tag: "v0.0.0-20190207185410-29686dbc5559", otherwise "v1.0.0"
+	SPEC_COMMIT=$(cut -d "-" -f 3 <<< "$SPEC_VERSION")
+	SPEC_REF=$([[ -z "$SPEC_COMMIT" ]] && echo "$SPEC_VERSION" || echo "$SPEC_COMMIT")
 
-  GOPATH="$GOPATH" go build src/runtime-spec/schema/validate.go
-  [ -e ./validate ]
+	git clone https://github.com/opencontainers/runtime-spec.git
+	( cd runtime-spec && git reset --hard "$SPEC_REF" )
+	SCHEMA='runtime-spec/schema/config-schema.json'
+	[ -e "$SCHEMA" ]
 
-  runc spec
-  [ -e config.json ]
+	go get github.com/xeipuuv/gojsonschema
+	go build runtime-spec/schema/validate.go
 
-  run ./validate src/runtime-spec/schema/config-schema.json config.json
-  [ "$status" -eq 0 ]
-  [[ "${lines[0]}" == *"The document is valid"* ]]
+	./validate "$SCHEMA" config.json
 }