Reinstating tests

Signed-off-by: Alex Ellis <alexellis2@gmail.com>

gateway/tests/integration/createfunction_test.go

@@ -4,21 +4,101 @@
 package inttests
 
 import (
+	"encoding/json"
 	"net/http"
+	"strings"
 	"testing"
+
+	"github.com/alexellis/faas/gateway/requests"
 )
 
-func TestCreate_ValidJson_InvalidFunction(t *testing.T) {
-	reqBody := `{}`
-	_, code, err := fireRequest("http://localhost:8080/system/functions", http.MethodPost, reqBody)
+func createFunction(request requests.CreateFunctionRequest) (string, int, error) {
+	marshalled, _ := json.Marshal(request)
+	return fireRequest("http://localhost:8080/system/functions", http.MethodPost, string(marshalled))
+}
+
+func deleteFunction(name string) (string, int, error) {
+	marshalled, _ := json.Marshal(requests.DeleteFunctionRequest{name})
+	return fireRequest("http://localhost:8080/system/functions", http.MethodDelete, string(marshalled))
+}
+
+func TestCreate_ValidRequest(t *testing.T) {
+	request := requests.CreateFunctionRequest{
+		Service:    "test_resizer",
+		Image:      "functions/resizer",
+		Network:    "func_functions",
+		EnvProcess: "",
+	}
+
+	_, code, err := createFunction(request)
 
 	if err != nil {
 		t.Log(err)
 		t.Fail()
 	}
 
-	if code != http.StatusBadRequest {
-		t.Errorf("Got HTTP code: %d, want %d\n", code, http.StatusBadRequest)
+	expectedErrorCode := http.StatusOK
+	if code != expectedErrorCode {
+		t.Errorf("Got HTTP code: %d, want %d\n", code, expectedErrorCode)
+		return
+	}
+
+	deleteFunction("test_resizer")
+}
+
+func TestCreate_InvalidImage(t *testing.T) {
+	request := requests.CreateFunctionRequest{
+		Service:    "test_resizer",
+		Image:      "a b c",
+		Network:    "func_functions",
+		EnvProcess: "",
+	}
+
+	body, code, err := createFunction(request)
+
+	if err != nil {
+		t.Log(err)
+		t.Fail()
+	}
+
+	expectedErrorCode := http.StatusBadRequest
+	if code != expectedErrorCode {
+		t.Errorf("Got HTTP code: %d, want %d\n", code, expectedErrorCode)
+		return
+	}
+
+	expectedErrorSlice := "is not a valid repository/tag"
+	if !strings.Contains(body, expectedErrorSlice) {
+		t.Errorf("Error message %s does not contain: %s\n", body, expectedErrorSlice)
+		return
+	}
+}
+
+func TestCreate_InvalidNetwork(t *testing.T) {
+	request := requests.CreateFunctionRequest{
+		Service:    "test_resizer",
+		Image:      "functions/resizer",
+		Network:    "non_existent_network",
+		EnvProcess: "",
+	}
+
+	body, code, err := createFunction(request)
+
+	if err != nil {
+		t.Log(err)
+		t.Fail()
+	}
+
+	expectedErrorCode := http.StatusBadRequest
+	if code != expectedErrorCode {
+		t.Errorf("Got HTTP code: %d, want %d\n", code, expectedErrorCode)
+		return
+	}
+
+	expectedErrorSlice := "network non_existent_network not found"
+	if !strings.Contains(body, expectedErrorSlice) {
+		t.Errorf("Error message %s does not contain: %s\n", body, expectedErrorSlice)
+		return
 	}
 }