Add basic integration test infrastructure (and new endpoint `/api/v1/version` for testing it) (#741)

* Implement '/api/v1/version'

* Cleanup and various fixes

* Enhance run.sh

* Add install_test.go

* Add parameter utils.Config for testing handlers

* Re-organize TestVersion.go

* Rename functions

* handling process cleanup properly

* Fix missing function renaming

* Cleanup the 'retry' logic

* Cleanup

* Remove unneeded logging code

* Logging messages tweaking

* Logging message tweaking

* Fix logging messages

* Use 'const' instead of hardwired numbers

* We don't really need retries anymore

* Move constant ServerHttpPort to install_test.go

* Restore mistakenly removed constant

* Add required comments to make the linter happy.

* Fix comments and naming to address linter's complaints

* Detect Gitea executale version automatically

* Remove tests/run.sh, `go test` suffices.

* Make `make build` a prerequisite of `make test`

* Do not sleep before trying

* Speedup the server pinging loop

* Use defined const instead of hardwired numbers

* Remove redundant error handling

* Use a dedicated target for running code.gitea.io/tests

* Do not make 'test' depend on 'build' target

* Rectify the excluded package list

* Remove redundant 'exit 1'

* Change the API to allow passing test.T to test handlers

* Make testing.T an embedded field

* Use assert.Equal to comparing results

* Add copyright info

* Parametrized logging output

* Use tmpdir instead

* Eliminate redundant casting

* Remove unneeded variable

* Fix last commit

* Add missing copyright info

* Replace fmt.Fprintf with fmt.Fprint

* rename the xtest to integration-test

* Use Symlink instead of hard-link for cross-device linking

* Turn debugging logs on

* Follow the existing framework for APIs

* Output logs only if test.v is true

* Re-order import statements

* Enhance the error message

* Fix comment which breaks the linter's rule

* Rename 'integration-test' to 'e2e-test' for saving keystrokes

* Add comment to avoid possible confusion

* Rename tests -> integration-tests

Also change back the Makefile to use `make integration-test`.

* Use tests/integration for now

* tests/integration -> integrations

Slightly flattened directory hierarchy is better.

* Update Makefile accordingly

* Fix a missing change in Makefile

* govendor update code.gitea.io/sdk/gitea

* Fix comment of struct fields

* Fix conditional nonsense

* Fix missing updates regarding version string changes

* Make variable naming more consistent

* Check http status code

* Rectify error messages

1 files changed, 82 insertions, 0 deletions

diff --git a/integrations/version_test.go b/integrations/version_test.go
new file mode 100644
index 0000000000..beda5c3ab7
--- /dev/null
+++ b/integrations/version_test.go
@@ -0,0 +1,82 @@
+// Copyright 2017 The Gitea Authors. All rights reserved.
+// Use of this source code is governed by a MIT-style
+// license that can be found in the LICENSE file.
+
+package integration
+
+import (
+	"encoding/json"
+	"fmt"
+	"log"
+	"net/http"
+	"os"
+	"os/exec"
+	"path/filepath"
+	"strings"
+	"testing"
+
+	"code.gitea.io/gitea/integrations/internal/utils"
+	"code.gitea.io/sdk/gitea"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func version(t *utils.T) error {
+	var err error
+
+	path, err := filepath.Abs(t.Config.Program)
+	if err != nil {
+		return err
+	}
+
+	cmd := exec.Command(path, "--version")
+	out, err := cmd.Output()
+	if err != nil {
+		return err
+	}
+
+	fields := strings.Fields(string(out))
+	if !strings.HasPrefix(string(out), "Gitea version") {
+		return fmt.Errorf("unexpected version string '%s' of the gitea executable", out)
+	}
+
+	expected := fields[2]
+
+	var r *http.Response
+	r, err = http.Get("http://:" + ServerHTTPPort + "/api/v1/version")
+	if err != nil {
+		return err
+	}
+	defer r.Body.Close()
+
+	if r.StatusCode != http.StatusOK {
+		return fmt.Errorf("'/api/v1/version': %s\n", r.Status)
+	}
+
+	var v gitea.ServerVersion
+
+	dec := json.NewDecoder(r.Body)
+	if err := dec.Decode(&v); err != nil {
+		return err
+	}
+
+	actual := v.Version
+
+	log.Printf("Actual: \"%s\" Expected: \"%s\"\n", actual, expected)
+	assert.Equal(t, expected, actual)
+
+	return nil
+}
+
+func TestVersion(t *testing.T) {
+	conf := utils.Config{
+		Program: "../gitea",
+		WorkDir: "",
+		Args:    []string{"web", "--port", ServerHTTPPort},
+		LogFile: os.Stderr,
+	}
+
+	if err := utils.New(t, &conf).RunTest(install, version); err != nil {
+		t.Fatal(err)
+	}
+}