Add line fixers: FixTabIndentationToSpaces, FixTabIndentationToSpaces, FixTabIndentationToSpaces.

editorconfig/line_fixers_test.go

@@ -0,0 +1,72 @@
+package editorconfig
+
+import (
+	"testing"
+)
+
+func TestFixTabIndentationToSpaces(t *testing.T) {
+	var result string
+
+	result = FixTabIndentationToSpaces("4", "\t\thello world")
+	if result != "        hello world" {
+		t.Error("Unexpected result: " + result)
+	}
+
+	result = FixTabIndentationToSpaces("3", "\thello world")
+	if result != "   hello world" {
+		t.Error("Unexpected result: " + result)
+	}
+
+	result = FixTabIndentationToSpaces("2", "\t\t\thello world")
+	if result != "      hello world" {
+		t.Error("Unexpected result: " + result)
+	}
+}
+
+func TestFixMixedIndentationToSpaces(t *testing.T) {
+	var result string
+
+	result = FixMixedIndentationToSpaces("2", "\t  \t  hello worl d")
+	if result != "        hello worl d" {
+		t.Error("Unexpected result: " + result)
+	}
+
+	result = FixMixedIndentationToSpaces("3", " \thello world  !")
+	if result != "    hello world  !" {
+		t.Error("Unexpected result: " + result)
+	}
+
+	result = FixMixedIndentationToSpaces("2", "  \t hello world !")
+	if result != "     hello world !" {
+		t.Error("Unexpected result: " + result)
+	}
+}
+
+func TestFixUndividableIndentationToNearestSpacesAmount(t *testing.T) {
+	var result string
+
+	result = FixUndividableIndentationToNearestSpacesAmount("2", "hello")
+	if result != "hello" {
+		t.Error("String changed but it was already fine. Changed to: " + result)
+	}
+
+	result = FixUndividableIndentationToNearestSpacesAmount("2", "  hello")
+	if result != "  hello" {
+		t.Error("String changed but it was already fine. Changed to: " + result)
+	}
+
+	result = FixUndividableIndentationToNearestSpacesAmount("1", "  hello")
+	if result != "  hello" {
+		t.Error("String changed but it was already fine. Changed to: " + result)
+	}
+
+	result = FixUndividableIndentationToNearestSpacesAmount("3", "  hello")
+	if result != "   hello" {
+		t.Error("Unexpected result: " + result)
+	}
+
+	result = FixUndividableIndentationToNearestSpacesAmount("5", "  hello")
+	if result != "     hello" {
+		t.Error("Unexpected result: " + result)
+	}
+}