Create MO parser

Refactored a bit too, so we can use interfaces to take Mo and Po files

added fixtures

found that the parser for Po files have a bug... but it works... so not touched

mo_test.go

@@ -0,0 +1,204 @@
+/*
+ * Copyright (c) 2018 DeineAgentur UG https://www.deineagentur.com. All rights reserved.
+ * Licensed under the MIT License. See LICENSE file in the project root for full license information.
+ */
+
+package gotext
+
+import (
+	"os"
+	"path"
+	"testing"
+)
+
+func TestMo_Get(t *testing.T) {
+
+	// Create po object
+	mo := new(Mo)
+
+	// Try to parse a directory
+	mo.ParseFile(path.Clean(os.TempDir()))
+
+	// Parse file
+	mo.ParseFile("fixtures/en_US/default.mo")
+
+	// Test translations
+	tr := mo.Get("My text")
+	if tr != "Translated text" {
+		t.Errorf("Expected 'Translated text' but got '%s'", tr)
+	}
+	// Test translations
+	tr = mo.Get("language")
+	if tr != "en_US" {
+		t.Errorf("Expected 'en_US' but got '%s'", tr)
+	}
+}
+
+func TestMo(t *testing.T) {
+
+	// Create po object
+	mo := new(Mo)
+
+	// Try to parse a directory
+	mo.ParseFile(path.Clean(os.TempDir()))
+
+	// Parse file
+	mo.ParseFile("fixtures/en_US/default.mo")
+
+	// Test translations
+	tr := mo.Get("My text")
+	if tr != "Translated text" {
+		t.Errorf("Expected 'Translated text' but got '%s'", tr)
+	}
+
+	v := "Variable"
+	tr = mo.Get("One with var: %s", v)
+	if tr != "This one is the singular: Variable" {
+		t.Errorf("Expected 'This one is the singular: Variable' but got '%s'", tr)
+	}
+
+	// Test multi-line id
+	tr = mo.Get("multilineid")
+	if tr != "id with multiline content" {
+		t.Errorf("Expected 'id with multiline content' but got '%s'", tr)
+	}
+
+	// Test multi-line plural id
+	tr = mo.Get("multilinepluralid")
+	if tr != "plural id with multiline content" {
+		t.Errorf("Expected 'plural id with multiline content' but got '%s'", tr)
+	}
+
+	// Test multi-line
+	tr = mo.Get("Multi-line")
+	if tr != "Multi line" {
+		t.Errorf("Expected 'Multi line' but got '%s'", tr)
+	}
+
+	// Test plural
+	tr = mo.GetN("One with var: %s", "Several with vars: %s", 2, v)
+	if tr != "This one is the plural: Variable" {
+		t.Errorf("Expected 'This one is the plural: Variable' but got '%s'", tr)
+	}
+
+	// Test not existent translations
+	tr = mo.Get("This is a test")
+	if tr != "This is a test" {
+		t.Errorf("Expected 'This is a test' but got '%s'", tr)
+	}
+
+	tr = mo.GetN("This is a test", "This are tests", 100)
+	if tr != "This are tests" {
+		t.Errorf("Expected 'This are tests' but got '%s'", tr)
+	}
+
+	// Test context translations
+	v = "Test"
+	tr = mo.GetC("One with var: %s", "Ctx", v)
+	if tr != "This one is the singular in a Ctx context: Test" {
+		t.Errorf("Expected 'This one is the singular in a Ctx context: Test' but got '%s'", tr)
+	}
+
+	// Test plural
+	tr = mo.GetNC("One with var: %s", "Several with vars: %s", 17, "Ctx", v)
+	if tr != "This one is the plural in a Ctx context: Test" {
+		t.Errorf("Expected 'This one is the plural in a Ctx context: Test' but got '%s'", tr)
+	}
+
+	// Test default plural vs singular return responses
+	tr = mo.GetN("Original", "Original plural", 4)
+	if tr != "Original plural" {
+		t.Errorf("Expected 'Original plural' but got '%s'", tr)
+	}
+	tr = mo.GetN("Original", "Original plural", 1)
+	if tr != "Original" {
+		t.Errorf("Expected 'Original' but got '%s'", tr)
+	}
+
+	// Test empty Translation strings
+	tr = mo.Get("Empty Translation")
+	if tr != "Empty Translation" {
+		t.Errorf("Expected 'Empty Translation' but got '%s'", tr)
+	}
+
+	tr = mo.Get("Empty plural form singular")
+	if tr != "Singular translated" {
+		t.Errorf("Expected 'Singular translated' but got '%s'", tr)
+	}
+
+	tr = mo.GetN("Empty plural form singular", "Empty plural form", 1)
+	if tr != "Singular translated" {
+		t.Errorf("Expected 'Singular translated' but got '%s'", tr)
+	}
+
+	tr = mo.GetN("Empty plural form singular", "Empty plural form", 2)
+	if tr != "Empty plural form" {
+		t.Errorf("Expected 'Empty plural form' but got '%s'", tr)
+	}
+
+	// Test last Translation
+	tr = mo.Get("More")
+	if tr != "More translation" {
+		t.Errorf("Expected 'More translation' but got '%s'", tr)
+	}
+}
+
+func TestMoRace(t *testing.T) {
+
+	// Create Po object
+	mo := new(Mo)
+
+	// Create sync channels
+	pc := make(chan bool)
+	rc := make(chan bool)
+
+	// Parse po content in a goroutine
+	go func(mo *Mo, done chan bool) {
+		// Parse file
+		mo.ParseFile("fixtures/en_US/default.mo")
+		done <- true
+	}(mo, pc)
+
+	// Read some Translation on a goroutine
+	go func(mo *Mo, done chan bool) {
+		mo.Get("My text")
+		done <- true
+	}(mo, rc)
+
+	// Read something at top level
+	mo.Get("My text")
+
+	// Wait for goroutines to finish
+	<-pc
+	<-rc
+}
+
+func TestNewMoTranslatorRace(t *testing.T) {
+
+	// Create Po object
+	mo := NewMoTranslator()
+
+	// Create sync channels
+	pc := make(chan bool)
+	rc := make(chan bool)
+
+	// Parse po content in a goroutine
+	go func(mo Translator, done chan bool) {
+		// Parse file
+		mo.ParseFile("fixtures/en_US/default.mo")
+		done <- true
+	}(mo, pc)
+
+	// Read some Translation on a goroutine
+	go func(mo Translator, done chan bool) {
+		mo.Get("My text")
+		done <- true
+	}(mo, rc)
+
+	// Read something at top level
+	mo.Get("My text")
+
+	// Wait for goroutines to finish
+	<-pc
+	<-rc
+}