Comparison operators refactoring.

sqlbuilder/string_expression_test.go

@@ -0,0 +1,76 @@
+package sqlbuilder
+
+import (
+	"gotest.tools/assert"
+	"testing"
+)
+
+func TestStringEQColumn(t *testing.T) {
+	exp := table3StrCol.EQ(table2StrCol)
+
+	out := queryData{}
+	err := exp.serialize(select_statement, &out)
+
+	assert.NilError(t, err)
+	assert.Equal(t, out.buff.String(), "table3.col2 = table2.col4")
+}
+
+func TestStringEQString(t *testing.T) {
+	exp := table3StrCol.EQ(String("JOHN"))
+
+	out := queryData{}
+	err := exp.serialize(select_statement, &out)
+
+	assert.NilError(t, err)
+	assert.Equal(t, out.buff.String(), "table3.col2 = $1")
+}
+
+func TestStringNOT_EQ(t *testing.T) {
+	exp := table3StrCol.NOT_EQ(table2StrCol)
+
+	out := queryData{}
+	err := exp.serialize(select_statement, &out)
+
+	assert.NilError(t, err)
+	assert.Equal(t, out.buff.String(), "table3.col2 != table2.col4")
+}
+
+func TestStringGT(t *testing.T) {
+	exp := table3StrCol.GT(table2StrCol)
+
+	out := queryData{}
+	err := exp.serialize(select_statement, &out)
+
+	assert.NilError(t, err)
+	assert.Equal(t, out.buff.String(), "table3.col2 > table2.col4")
+}
+
+func TestStringGT_EQ(t *testing.T) {
+	exp := table3StrCol.GT_EQ(table2StrCol)
+
+	out := queryData{}
+	err := exp.serialize(select_statement, &out)
+
+	assert.NilError(t, err)
+	assert.Equal(t, out.buff.String(), "table3.col2 >= table2.col4")
+}
+
+func TestStringLT(t *testing.T) {
+	exp := table3StrCol.LT(table2StrCol)
+
+	out := queryData{}
+	err := exp.serialize(select_statement, &out)
+
+	assert.NilError(t, err)
+	assert.Equal(t, out.buff.String(), "table3.col2 < table2.col4")
+}
+
+func TestStringLT_EQ(t *testing.T) {
+	exp := table3StrCol.LT_EQ(table2StrCol)
+
+	out := queryData{}
+	err := exp.serialize(select_statement, &out)
+
+	assert.NilError(t, err)
+	assert.Equal(t, out.buff.String(), "table3.col2 <= table2.col4")
+}