Add seperate tests for engine package

engine/context_test.go

@@ -0,0 +1,306 @@
+// Copyright 2016 Alexander Palaistras. All rights reserved.
+// Use of this source code is governed by the MIT license that can be found in
+// the LICENSE file.
+
+package engine
+
+import (
+	"bytes"
+	"fmt"
+	"net/http"
+	"reflect"
+	"testing"
+)
+
+func TestContextStart(t *testing.T) {
+	e, _ = New()
+	t.SkipNow()
+}
+
+func TestContextNew(t *testing.T) {
+	c, err := NewContext()
+	if err != nil {
+		t.Fatalf("NewContext(): %s", err)
+	}
+
+	if c.context == nil || c.Header == nil || c.values == nil {
+		t.Fatalf("NewContext(): Struct fields are `nil` but no error returned")
+	}
+
+	c.Destroy()
+}
+
+var execTests = []struct {
+	name     string
+	script   string
+	expected string
+}{
+	{
+		"helloworld.php",
+
+		`<?php
+		$a = 'Hello';
+		$b = 'World';
+		echo $a.' '.$b;`,
+
+		"Hello World",
+	},
+}
+
+func TestContextExec(t *testing.T) {
+	var w bytes.Buffer
+
+	c, _ := NewContext()
+	c.Output = &w
+
+	for _, tt := range execTests {
+		script, err := NewScript(tt.name, tt.script)
+		if err != nil {
+			t.Errorf("Could not create temporary file for testing: %s", tt.name, err)
+			continue
+		}
+
+		if err := c.Exec(script.Name()); err != nil {
+			t.Errorf("Context.Exec('%s'): Execution failed: %s", tt.name, err)
+			continue
+		}
+
+		actual := w.String()
+		w.Reset()
+
+		if actual != tt.expected {
+			t.Errorf("Context.Exec('%s'): Expected `%s', actual `%s'", tt.name, tt.expected, actual)
+		}
+
+		script.Remove()
+	}
+
+	c.Destroy()
+}
+
+var evalTests = []struct {
+	script string
+	output string
+	value  interface{}
+}{
+	{
+		"echo 'Hello World';",
+		"Hello World",
+		nil,
+	},
+	{
+		"$i = 10; $d = 20; return $i + $d;",
+		"",
+		int64(30),
+	},
+}
+
+func TestContextEval(t *testing.T) {
+	var w bytes.Buffer
+
+	c, _ := NewContext()
+	c.Output = &w
+
+	for _, tt := range evalTests {
+		val, err := c.Eval(tt.script)
+		if err != nil {
+			t.Errorf("Context.Eval('%s'): %s", tt.script, err)
+			continue
+		}
+
+		output := w.String()
+		w.Reset()
+
+		if output != tt.output {
+			t.Errorf("Context.Eval('%s'): Expected output '%s', actual '%s'", tt.script, tt.output, output)
+		}
+
+		result := val.Interface()
+
+		if reflect.DeepEqual(result, tt.value) == false {
+			t.Errorf("Context.Eval('%s'): Expected value '%#v', actual '%#v'", tt.script, tt.value, result)
+		}
+
+		val.Destroy()
+	}
+
+	c.Destroy()
+}
+
+var headerTests = []struct {
+	script   string
+	expected http.Header
+}{
+	{
+		"header('X-Testing: Hello');",
+		http.Header{"X-Testing": []string{"Hello"}},
+	},
+	{
+		"header('X-Testing: World', false);",
+		http.Header{"X-Testing": []string{"Hello", "World"}},
+	},
+	{
+		"header_remove('X-Testing');",
+		http.Header{},
+	},
+	{
+		"header('X-Testing: Done', false);",
+		http.Header{"X-Testing": []string{"Done"}},
+	},
+}
+
+func TestContextHeader(t *testing.T) {
+	c, _ := NewContext()
+
+	for _, tt := range headerTests {
+		if _, err := c.Eval(tt.script); err != nil {
+			t.Errorf("Context.Eval('%s'): %s", tt.script, err)
+			continue
+		}
+
+		if reflect.DeepEqual(c.Header, tt.expected) == false {
+			t.Errorf("Context.Eval('%s'): expected '%#v', actual '%#v'", tt.script, tt.expected, c.Header)
+		}
+	}
+
+	c.Destroy()
+}
+
+var logTests = []struct {
+	script   string
+	expected string
+}{
+	{
+		"$a = 10; $a + $b;",
+		"PHP Notice:  Undefined variable: b in gophp-engine on line 1",
+	},
+	{
+		"strlen();",
+		"PHP Warning:  strlen() expects exactly 1 parameter, 0 given in gophp-engine on line 1",
+	},
+	{
+		"trigger_error('Test Error');",
+		"PHP Notice:  Test Error in gophp-engine on line 1",
+	},
+}
+
+func TestContextLog(t *testing.T) {
+	var w bytes.Buffer
+
+	c, _ := NewContext()
+	c.Log = &w
+
+	for _, tt := range logTests {
+		if _, err := c.Eval(tt.script); err != nil {
+			t.Errorf("Context.Eval('%s'): %s", tt.script, err)
+			continue
+		}
+
+		actual := w.String()
+		w.Reset()
+
+		if actual != tt.expected {
+			t.Errorf("Context.Eval('%s'): expected '%s', actual '%s'", tt.script, tt.expected, actual)
+		}
+	}
+
+	c.Destroy()
+}
+
+var bindTests = []struct {
+	value    interface{}
+	expected string
+}{
+	{
+		42,
+		"i:42;",
+	},
+	{
+		3.14159,
+		"d:3.1415899999999999;",
+	},
+	{
+		true,
+		"b:1;",
+	},
+	{
+		"Such bind",
+		`s:9:"Such bind";`,
+	},
+	{
+		[]string{"this", "that"},
+		`a:2:{i:0;s:4:"this";i:1;s:4:"that";}`,
+	},
+	{
+		[][]int{{1, 2}, {3}},
+		`a:2:{i:0;a:2:{i:0;i:1;i:1;i:2;}i:1;a:1:{i:0;i:3;}}`,
+	},
+	{
+		map[string]interface{}{"hello": []string{"hello", "!"}},
+		`a:1:{s:5:"hello";a:2:{i:0;s:5:"hello";i:1;s:1:"!";}}`,
+	},
+	{
+		struct {
+			I int
+			C string
+			F struct {
+				G bool
+			}
+			h bool
+		}{3, "test", struct {
+			G bool
+		}{false}, true},
+		`O:8:"stdClass":3:{s:1:"I";i:3;s:1:"C";s:4:"test";s:1:"F";O:8:"stdClass":1:{s:1:"G";b:0;}}`,
+	},
+}
+
+func TestContextBind(t *testing.T) {
+	var w bytes.Buffer
+
+	c, _ := NewContext()
+	c.Output = &w
+
+	script, err := NewScript("bind.php", "<?php $i = (isset($i)) ? $i += 1 : 0; echo serialize($$i);")
+	if err != nil {
+		t.Fatalf("Could not create temporary file for testing: %s", err)
+	}
+
+	for i, tt := range bindTests {
+		if err := c.Bind(fmt.Sprintf("%d", i), tt.value); err != nil {
+			t.Errorf("Context.Bind('%v'): %s", tt.value, err)
+			continue
+		}
+
+		if err := c.Exec(script.Name()); err != nil {
+			t.Errorf("Context.Exec(): %s", err)
+			continue
+		}
+
+		actual := w.String()
+		w.Reset()
+
+		if actual != tt.expected {
+			t.Errorf("Context.Bind('%v'): expected '%s', actual '%s'", tt.value, tt.expected, actual)
+		}
+	}
+
+	script.Remove()
+	c.Destroy()
+}
+
+func TestContextDestroy(t *testing.T) {
+	c, _ := NewContext()
+	c.Destroy()
+
+	if c.context != nil || c.values != nil {
+		t.Errorf("Context.Destroy(): Did not set internal fields to `nil`")
+	}
+
+	// Attempting to destroy a context twice should be a no-op.
+	c.Destroy()
+}
+
+func TestContextEnd(t *testing.T) {
+	e.Destroy()
+	t.SkipNow()
+}