150 lines
2.5 KiB
Go
150 lines
2.5 KiB
Go
package gg
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import (
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"strconv"
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"testing"
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"github.com/stretchr/testify/assert"
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"github.com/mediocregopher/ginger/graph"
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)
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func TestDecoder(t *testing.T) {
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zeroGraph := new(Graph)
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i := func(i int64) Value {
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return Value{Number: &i}
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}
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n := func(n string) Value {
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return Value{Name: &n}
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}
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vOut := func(edgeVal, val Value) *OpenEdge {
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return graph.ValueOut(edgeVal, val)
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}
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tOut := func(edgeVal Value, ins ...*OpenEdge) *OpenEdge {
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return graph.TupleOut(edgeVal, ins...)
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}
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tests := []struct {
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in string
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exp *Graph
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}{
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{
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in: "",
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exp: zeroGraph,
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},
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{
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in: "out = 1;",
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exp: zeroGraph.AddValueIn(n("out"), vOut(ZeroValue, i(1))),
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},
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{
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in: "out = incr < 1;",
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exp: zeroGraph.AddValueIn(n("out"), vOut(n("incr"), i(1))),
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},
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{
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in: "out = a < b < 1;",
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exp: zeroGraph.AddValueIn(
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n("out"),
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tOut(
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n("a"),
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vOut(n("b"),
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i(1)),
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),
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),
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},
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{
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in: "out = a < b < (1; c < 2; d < e < 3;);",
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exp: zeroGraph.AddValueIn(
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n("out"),
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tOut(
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n("a"),
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tOut(
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n("b"),
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vOut(ZeroValue, i(1)),
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vOut(n("c"), i(2)),
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tOut(
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n("d"),
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vOut(n("e"), i(3)),
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),
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),
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),
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),
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},
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{
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in: "out = a < b < (1; c < (d < 2; 3;); );",
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exp: zeroGraph.AddValueIn(
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n("out"),
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tOut(
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n("a"),
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tOut(
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n("b"),
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vOut(ZeroValue, i(1)),
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tOut(
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n("c"),
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vOut(n("d"), i(2)),
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vOut(ZeroValue, i(3)),
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),
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),
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),
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),
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},
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{
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in: "out = { a = 1; b = c < d < 2; };",
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exp: zeroGraph.AddValueIn(
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n("out"),
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vOut(
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ZeroValue,
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Value{Graph: zeroGraph.
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AddValueIn(n("a"), vOut(ZeroValue, i(1))).
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AddValueIn(
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n("b"),
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tOut(
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n("c"),
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vOut(n("d"), i(2)),
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),
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),
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},
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),
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),
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},
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{
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in: "out = a < { b = 1; } < 2;",
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exp: zeroGraph.AddValueIn(
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n("out"),
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tOut(
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n("a"),
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vOut(
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Value{Graph: zeroGraph.
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AddValueIn(n("b"), vOut(ZeroValue, i(1))),
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},
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i(2),
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),
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),
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),
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},
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{
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in: "a = 1; b = 2;",
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exp: zeroGraph.
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AddValueIn(n("a"), vOut(ZeroValue, i(1))).
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AddValueIn(n("b"), vOut(ZeroValue, i(2))),
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},
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}
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for i, test := range tests {
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t.Run(strconv.Itoa(i), func(t *testing.T) {
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r := &mockReader{body: []byte(test.in)}
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lexer := NewLexer(r)
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got, err := DecodeLexer(lexer)
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assert.NoError(t, err)
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assert.True(t, got.Equal(test.exp), "\nexp:%v\ngot:%v", test.exp, got)
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})
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}
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}
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