Upgrading gorealis v1 to Thrift 0.12.0 code generation. End to end tests cleanup (#96)

* Ported all code from Thrift 0.9.3 to Thrift 0.12.0 while backporting some fixes from gorealis v2

* Removing git.apache.org dependency from Vendor folder as this dependency has migrated to github.

* Adding github.com thrift dependency back but now it points to github.com

* Removing unnecessary files from Thrift Vendor folder and adding them to .gitignore.

* Updating dep dependencies to include Thrift 0.12.0 from github.com

* Adding changelog.

* End to end tests: Adding coverage for killinstances.

*  End to end tests: Deleting instances after partition policy recovers them.

*  End to end tests: Adding more coverage to the realis API.

*  End to end tests: Allowing arguments to be passed to runTestMac so that '-run <test name>' can be passed in.

*  End to end tests: Reducing the resources used by CreateJob test.

*  End to end tests: Adding coverage for Pause and Resume update.

*   End to end tests: Removed checks for Aurora_OK response as that should always be handled by the error returned by the API. Changed names to be less verbose and repetitive.

*  End to end tests: Reducing watch time for instance running when creating service for reducing time it takes to run end to end test.

util.go

@@ -0,0 +1,75 @@
+package realis
+
+import (
+	"net/url"
+	"strings"
+
+	"github.com/paypal/gorealis/gen-go/apache/aurora"
+	"github.com/pkg/errors"
+)
+
+var ActiveStates = make(map[aurora.ScheduleStatus]bool)
+var SlaveAssignedStates = make(map[aurora.ScheduleStatus]bool)
+var LiveStates = make(map[aurora.ScheduleStatus]bool)
+var TerminalStates = make(map[aurora.ScheduleStatus]bool)
+var ActiveJobUpdateStates = make(map[aurora.JobUpdateStatus]bool)
+var AwaitingPulseJobUpdateStates = make(map[aurora.JobUpdateStatus]bool)
+
+func init() {
+	for _, status := range aurora.ACTIVE_STATES {
+		ActiveStates[status] = true
+	}
+
+	for _, status := range aurora.SLAVE_ASSIGNED_STATES {
+		SlaveAssignedStates[status] = true
+	}
+
+	for _, status := range aurora.LIVE_STATES {
+		LiveStates[status] = true
+	}
+
+	for _, status := range aurora.TERMINAL_STATES {
+		TerminalStates[status] = true
+	}
+
+	for _, status := range aurora.ACTIVE_JOB_UPDATE_STATES {
+		ActiveJobUpdateStates[status] = true
+	}
+	for _, status := range aurora.AWAITNG_PULSE_JOB_UPDATE_STATES {
+		AwaitingPulseJobUpdateStates[status] = true
+	}
+}
+
+func validateAndPopulateAuroraURL(urlStr string) (string, error) {
+
+	// If no protocol defined, assume http
+	if !strings.Contains(urlStr, "://") {
+		urlStr = "http://" + urlStr
+	}
+
+	u, err := url.Parse(urlStr)
+
+	if err != nil {
+		return "", errors.Wrap(err, "error parsing url")
+	}
+
+	// If no path provided assume /api
+	if u.Path == "" {
+		u.Path = "/api"
+	}
+
+	// If no port provided, assume default 8081
+	if u.Port() == "" {
+		u.Host = u.Host + ":8081"
+	}
+
+	if !(u.Scheme == "http" || u.Scheme == "https") {
+		return "", errors.Errorf("only protocols http and https are supported %v\n", u.Scheme)
+	}
+
+	if u.Path != "/api" {
+		return "", errors.Errorf("expected /api path %v\n", u.Path)
+	}
+
+	return u.String(), nil
+}